Tabindex is not reaching to lastrow in gridview

Tabindex is not reaching to lastrow in gridview - c#

**I have Gridview with 2 textbox..i have setted the tab index for 1st texbox of rows...It
is working fine for all of the rows except last row..it is stopping before the last row..
It is not reaching at last row...
plz,help....**
<asp:GridView ID="GridView1" runat="server">
<AlternatingRowStyle BackColor="White" />
<Columns>
<asp:BoundField DataField="st_id" HeaderText="Id" SortExpression="st_id" />
<asp:TemplateField HeaderText="Attended-OutOff">
<ItemTemplate>
<table>
<tr>
<td>
<asp:TextBox ID="tbattendedlectures" runat="server" Height="27px" Width="32px"></asp:TextBox>
</td>
<td>
<asp:TextBox ID="tbtotalattendence" runat="server" Height="27px" Width="32px" ReadOnly="true"></asp:TextBox>
</td>
</tr>
</table>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
Label batch = (Label)e.Row.FindControl("lbbatch");
batch.Text = dpbatchname.SelectedItem.Text.ToString();
Label subject = (Label)e.Row.FindControl("lbsubject");
subject.Text = dpsubjname.SelectedItem.Text.ToString();
Label sessional = (Label)e.Row.FindControl("lbcurrentsessional");
sessional.Text = dpsessional.SelectedItem.Text.ToString();
TextBox total = (TextBox)e.Row.FindControl("tbtotalattendence");
total.Text = tbnooflecture.Text.ToString();
/* TextBox attendence = (TextBox)e.Row.FindControl("tbattendedlectures");
attendence.Text = tbnooflecture.Text.ToString();
*/
SetTabIndexes();
}
}
private void SetTabIndexes()
{
short currentTabIndex = 0;
GridView1.TabIndex = ++currentTabIndex;
foreach (GridViewRow gvr in GridView1.Rows)
{
TextBox inputField1 = (TextBox)gvr.FindControl("tbattendedlectures");
inputField1.TabIndex = ++currentTabIndex;
}
}

Related

ASP.NET Uploaded Image Path not display in gridview

Im beginner for the ASP.NET ,Im develop the File Upload in Grid View with Ajax Modal Popup its working i can upload image and i can see uploaded image in uploaded folder, but i cant make uploaded image Path to grid view, can you please help me.
ASPX
<asp:UpdatePanel ID="UpdatePanelArt" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div class="table-responsive col-sm-12">
<asp:GridView ID="gvArticle" ShowHeaderWhenEmpty="True" ClientIDMode="AutoID" CssClass="table table-bordered table-condensed table-hover" AutoGenerateColumns="False" runat="server" AllowPaging="True" PageSize="15" OnRowDataBound="gvArticle_RowDataBound" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="4" ForeColor="Black" GridLines="Horizontal" OnRowUpdating="gvArticle_RowUpdating">
<%--<HeaderStyle BackColor="#3d4247" ForeColor="White" />--%>
<Columns>
<asp:TemplateField HeaderText="intArticleDetail" Visible="false">
<ItemTemplate>
<asp:Label ID="lblArticleDetailId" Width="2" Text='<%# Bind("intArticleDetailId") %>' ClientIDMode="Static" runat="server"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="SectionID" Visible="false">
<ItemTemplate>
<asp:Label ID="lblSectionId" Width="2" Text='<%# Bind("intSectionId") %>' ClientIDMode="Static" runat="server"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Section">
<ItemTemplate>
<asp:Label ID="lblSectionName" Width="100" Text='<%# Bind("strSectionName") %>' ClientIDMode="Static" runat="server"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Compound">
<EditItemTemplate>
<asp:Label ID="lblItemTypeEdit" Width="50" Text='<%# Bind("strCompoundName") %>' lientIDMode="Static" AutoPostBack="true" runat="server">
</asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:DropDownList ID="ddlCompoundId" Width="200" CssClass="form-control my-DropDownThin" lientIDMode="Static" AutoPostBack="true" runat="server">
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Weight">
<ItemTemplate>
<asp:TextBox ID="txtdecSectionWeighte" Width="100%" Text='<%# Bind("decSectionWeight") %>' lientIDMode="Static" runat="server"> </asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<%--<asp:TemplateField HeaderText="Messagers">
<ItemTemplate>
<asp:TextBox ID="txtMessage" Width="100%" Text='<%# Bind("intMessageId") %>' ClientIDMode="Static" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>--%>
<asp:TemplateField HeaderText="Messagers">
<EditItemTemplate>
<asp:Label ID="lblMessageId" Width="50" Text='<%# Bind("strMessage") %>' ClientIDMode="Static" AutoPostBack="true" runat="server">
</asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:DropDownList ID="ddlMessage" Width="300" CssClass="form-control my-DropDownThin" lientIDMode="Static" AutoPostBack="true" runat="server">
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<ItemTemplate>
<asp:Label ID="FilePath" Width="2" runat="server"></asp:Label>
</ItemTemplate>
<asp:TemplateField HeaderText="Images">
<ItemTemplate>
<%-- <asp:Image ID="Image1" ImageUrl='<%# Eval("StrImage") %>' runat="server" Height="100" />--%>
<%-- <asp:FileUpload runat="server" AutoPostBack="True" ID="uploadFImage" CommandArgument='<%# Eval("strImage") %>' ClientIDMode="Static"/>--%>
<asp:LinkButton ID="lnkUpload" runat="server" Text="Upload Resume" ></asp:LinkButton>
<%--Using ModalPopupExtender--%>
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="lnkUpload"
PopupControlID="pnlUpload" BackgroundCssClass="ModalPopupBG" CancelControlID="btnCancel">
</asp:ModalPopupExtender>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="">
<ItemTemplate>
<asp:Image ImageUrl="~/Uploaded Images/Default.png" runat="server" ID="btnViewFImage" Width="40" Height="40"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#CCCC99" ForeColor="Black" />
<HeaderStyle BackColor="#333333" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="Black" HorizontalAlign="Right" />
<SelectedRowStyle BackColor="#CC3333" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F7F7F7" />
<SortedAscendingHeaderStyle BackColor="#4B4B4B" />
<SortedDescendingCellStyle BackColor="#E5E5E5" />
<SortedDescendingHeaderStyle BackColor="#242121" />
</asp:GridView>
</div>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="gvArticle"/>
</Triggers>
</asp:UpdatePanel>
</div>
</div><asp:Panel ID="pnlUpload" runat="server" Width="450px" BackColor="#E39A19"
BorderColor="#C3680D" BorderStyle="Solid">
<asp:UpdatePanel ID="UpdatePanel3" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<table style="width: 450px; margin: 0 auto">
<tr>
<td align="right" style="background-image: url('backTable.PNG')">
</td>
</tr>
<tr>
<td align="left">
<asp:FileUpload ID="flp_Resume" runat="server" Width="222px" />
<asp:RequiredFieldValidator ID="RequiredFieldValidator8" runat="server"
ControlToValidate="flp_Resume" ErrorMessage="*"
ToolTip="Please Select a File to Upload."></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegularExpressionValidator5" runat="server"
ControlToValidate="flp_Resume" ErrorMessage="*"
ToolTip="Only txt,doc or docx files are Allowed"
ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+((.pdf)|(.doc)|(.txt)|(.docx))$"></asp:RegularExpressionValidator>
</td>
</tr>
<tr>
<td align="left">
<asp:Button ID="btnUpload" runat="server" Text="Upload" Width="80px"
onclick="btnUpload_Click" />
<asp:Button ID="btnCancel" runat="server" Text="Cancel" Width="80px" />
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblError" runat="server" Font-Bold="True" Font-Names="Georgia"
ForeColor="Red"></asp:Label>
</td>
</tr>
</table>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="btnUpload"/>
</Triggers>
cs
#region Detail Save1
private DataTable CreateDetailSave()
{
DataTable dtDetailSave1 = new DataTable();
DataColumn dc1;
dc1 = new DataColumn("intArticleDetailId");
dtDetailSave1.Columns.Add(dc1);
dc1 = new DataColumn("intSectionId");
dtDetailSave1.Columns.Add(dc1);
dc1 = new DataColumn("intCompoundId");
dtDetailSave1.Columns.Add(dc1);
dc1 = new DataColumn("decSectionWeight");
dtDetailSave1.Columns.Add(dc1);
dc1 = new DataColumn("intMessageId");
dtDetailSave1.Columns.Add(dc1);
dc1 = new DataColumn("uploadFImage");
dtDetailSave1.Columns.Add(dc1);
foreach (GridViewRow row in gvArticle.Rows)
{
DataRow dr = dtDetailSave1.NewRow();
Label lblintArticleDetailId = (Label)row.FindControl("lblArticleDetailId");
Label lblSectionId = (Label)row.FindControl("lblSectionId");
DropDownList ddlCompound = (DropDownList)row.FindControl("ddlCompoundId");
TextBox txtdecSectionWeighte = (TextBox)row.FindControl("txtdecSectionWeighte");
DropDownList intMessage = (DropDownList)row.FindControl("ddlMessage");
FileUpload uploadFImage = (FileUpload)row.FindControl("uploadFImage");
dr["intArticleDetailId"] = CurrentMode == "Add" ? -1 : Convert.ToInt32(lblintArticleDetailId.Text);
dr["intSectionId"] = Convert.ToInt32(lblSectionId.Text);
dr["intCompoundId"] = ddlCompound.SelectedValue;
dr["decSectionWeight"] = txtdecSectionWeighte.Text.Trim() != "" ? Convert.ToDecimal(txtdecSectionWeighte.Text.Trim()) : 0;
dr["intMessageId"] = intMessage.SelectedValue;
dr["uploadFImage"] = uploadFImage.HasFile;
dtDetailSave1.Rows.Add(dr);
}
return dtDetailSave1;
}
#endregion
#region Save
protected void btnSave_Click(object sender, EventArgs e)
{
try
{
if (FSaveConfirmation() == true)
{
string strArticleNo;
int intStatus = 8;
if (CurrentMode == "Add")
{
strArticleNo = "aaaaaaaa";
}
else
{
strArticleNo = txtArticleNo.Text.ToString();
}
DataTable dtDetailSave1 = CreateDetailSave();
string PageName = Path.GetFileNameWithoutExtension(Page.AppRelativeVirtualPath);
string Saved = clsArticle.saveArticleData(SelectedArticleId, strArticleNo, txtArticleDescription.Text.ToString(), txtRemarks.Text.ToString(), intStatus, 1, CurrentMode,
PageName, 16, dtDetailSave1);
if (Saved != "Error")
{
lblMsg.ForeColor = System.Drawing.Color.Green;
if (CurrentMode == "Add")
{
lblMsg.Text = "Record Saved Successfully";
txtArticleNo.Text = Saved.ToString();
}
else if (CurrentMode == "Modify")
{
lblMsg.Text = "Record Updated Successfully";
}
else if (CurrentMode == "Delete")
{
lblMsg.Text = "Record Deleted Successfully";
}
else if (CurrentMode == "Confirm")
{
lblMsg.Text = "Record Confirmed Successfully";
}
btnClear.Enabled = true;
btnSave.Enabled = true;
}
else if (Saved == "Error")
{
lblMsg.Text = "Article Saving Error";
}
}
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
#region Save Confirmation
private bool FSaveConfirmation()
{
lblMsg.ForeColor = System.Drawing.Color.Red;
Boolean blnSaveCon = true;
//if (CurrentMode == "Add")
//{
if (txtArticleDescription.Text.ToString() == "")
{
lblMsg.Text = "Enter Article Description";
blnSaveCon = false;
goto end;
}
//}
end: { }
return blnSaveCon;
}
#endregion
#region Get controls in page
private void GetControlList<T>(ControlCollection controlCollection, List<T> resultCollection) where T : Control
{
foreach (Control control in controlCollection)
{
if (control is T)
resultCollection.Add((T)control);
if (control.HasControls())
GetControlList(control.Controls, resultCollection);
}
}
#endregion
#region pageload
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ClearControls();
FillArticleDetails();
EnableControls(false);
Session["SearchPopup"] = false;
}
else
{
if (Session["SearchPopup"] != null)
{
SearchPopup = (bool)(Session["SearchPopup"]);
if (SearchPopup != false)
{
MyMPE.Show();
}
else
{
MyMPE.Hide();
}
}
vAdSearchParaList = new List<SearchParametors>();
}
}
#endregion
#region Advance Search
protected void btnAdSearchClose(object sender, ImageClickEventArgs e)
{
Session["SearchPopup"] = false;
Session["sSearchddlList"] = null;
GridView dtgResult = (GridView)ucDesignation.FindControl("ucgrdSearchConditions");
dtgResult.DataSource = null;
dtgResult.DataBind();
dtgAdSearchResult.DataSource = null;
dtgAdSearchResult.DataBind();
MyMPE.Hide();
}
#region Create Article table
private void createArticleDataTable()
{
if (dt.Columns.Count == 0)
{
dt.Columns.Add(new DataColumn("intArticleDetailId", typeof(int)));
dt.Columns.Add(new DataColumn("intSectionId", typeof(int)));
dt.Columns.Add(new DataColumn("strSectionName", typeof(string)));
dt.Columns.Add(new DataColumn("intCompoundId", typeof(string)));
dt.Columns.Add(new DataColumn("decSectionWeight", typeof(string)));
dt.Columns.Add(new DataColumn("intMessageId", typeof(string)));
dt.Columns.Add(new DataColumn("uploadFImage", typeof(string)));
}
gvArticle.DataSource = dt;
gvArticle.DataBind();
}
#endregion
#region Compound Grid - Add empty row
private void ArticleGridAddEmptyRow(int newId)
{
DataRow newDr = null;
newDr = dt.NewRow();
newDr["intArticleDetailId"] = 1;
newDr["intSectionId"] = 1;
newDr["strSectionName"] = "";
newDr["intCompoundId"] = "";
newDr["decSectionWeight"] = "";
newDr["intMessageId"] = "";
newDr["strImage"] = "";
dt.Rows.Add(newDr);
if (dtArticleDetails == null || dtArticleDetails.Rows.Count == 0)
{
dtArticleDetails = dt;
}
else
{
dtArticleDetails.Merge(dt);
gvArticle.DataSource = dt;
gvArticle.DataBind();
}
}
#endregion
private void FillArticleDetails()
{
DataSet dtCompoundData = clsArticle.GeArticleDetailData(SelectedArticleId);
if (dtCompoundData.Tables[0].Rows.Count > 0)
{
createArticleDataTable();
dt = dtCompoundData.Tables[0];
dtArticleDetails = dt;
gvArticle.DataSource = dtArticleDetails;
gvArticle.DataBind();
}
else
{
lblMsg.Text = "No Records Found";
}
}
protected void gvArticle_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Footer)
{
}
else if (e.Row.RowType == DataControlRowType.DataRow)
{
{
}
DataTable CompoundCode = clsArticle.CompoundDataForGrid("");
DropDownList ddlCompoundId = (DropDownList)e.Row.FindControl("ddlCompoundId");
if (ddlCompoundId != null)
{
ddlCompoundId.DataTextField = "Compound Code";
ddlCompoundId.DataValueField = "Compound Id";
ddlCompoundId.DataSource = CompoundCode;
ddlCompoundId.DataBind();
string country = (e.Row.FindControl("ddlCompoundId") as DropDownList).Text;
ddlCompoundId.Items.FindByValue(country).Selected = true;
}
DataTable MsgCode = clsArticle.MessageDataForGrid("");
DropDownList ddlMessage = (DropDownList)e.Row.FindControl("ddlMessage");
if (ddlMessage != null)
{
ddlMessage.DataTextField = "Message Name";
ddlMessage.DataValueField = "Message Id";
ddlMessage.DataSource = MsgCode;
ddlMessage.DataBind();
ddlMessage.Items.Insert(0, new ListItem("Please select"));
string country = (e.Row.FindControl("ddlMessage") as DropDownList).Text;
ddlMessage.Items.FindByValue(country).Selected = true;
}
//}
}
}
protected void btnUpload_Click(object sender, EventArgs e)
{
if (flp_Resume.HasFile)
{
string fileName = Path.GetFileName(flp_Resume.PostedFile.FileName);
string fullpath = Path.GetFullPath(flp_Resume.PostedFile.FileName);
flp_Resume.PostedFile.SaveAs(Server.MapPath("~/Uploaded Images/") + fileName);
Response.Redirect(Request.Url.AbsoluteUri);
}
else
{
lblError.Text = "Please Select a File";
return;
}
}

How to change a value of a control in EditItemTemplate in GridView

Hi I have a GridView control and in it a TextBox control inside an EditItemTemplate Field.
Now I need to change the textbox text when the user enters the edit mode.
When I run the program the textbox will take the value of the label that was in the ItemTemplate and I cant access the textbox.
.aspx:
<asp:GridView runat="server" ID="GridView1" AutoGenerateColumns="False"
ShowHeader="False" onrowcommand="GridView1_RowCommand"
onrowediting="GridView1_RowEditing" OnRowCancelingEdit="GridView1_Cancel"
onrowupdating="GridView1_RowUpdating" onrowdeleting="GridView1_RowDeleting"
onrowdatabound="GridView1_RowDataBound" DataKeyNames="TweetID">
<Columns>
<asp:TemplateField HeaderText="ProfilePicture">
<ItemTemplate>
<asp:ImageButton ID="ProfileImage" runat="server" CommandName="Redirect"
CommandArgument='<%# Container.DataItemIndex %>' Height="40px" Width="40px" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="FullName">
<ItemTemplate>
<asp:label ID="FullNameLabel" runat="server" text='<%#Eval("FullName") %>'></asp:label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="UserName">
<ItemTemplate>
<asp:Label ID="UserNameLabel" runat="server" Text='<%#Eval("UserName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Tweet">
<ItemTemplate>
<%--<asp:Label ID="TweetLabel" runat="server" Text='<%#Eval("TweetText") %>'></asp:Label>--%>
<asp:Label ID="TweetLabel" runat="server" Text=""></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="TweetTB" runat="server" Text='<%#Eval("TweetText") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Picture">
<ItemTemplate>
<asp:Image ID="TweetPic" runat="server"
ImageUrl='<%#"~/UploadedImages/"+Eval("PicName") %>' Height="125px" Width="222px" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ReTweet">
<ItemTemplate>
<asp:ImageButton ID="ReTweetImgBTN" runat="server"
ImageUrl="~/SrcImage/retweet-action.png" Height="27px" Width="29px"
CommandName="ReTweet" CommandArgument='<%# Container.DataItemIndex %>'/>
<%--<asp:Label ID="ReTweetEd" runat="server" Text="ReTweetEd" Visible="false"></asp:Label>--%>
<%--<asp:Button ID="ReTweetBTN" runat="server" Text="ReTweet" CommandName="ReTweet" CommandArgument='<%# Container.DataItemIndex %>' />--%>
<asp:Label ID="ReTweetStat" runat="server" Visible="false"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Like">
<ItemTemplate>
<asp:ImageButton ID="LikeImgBTN" runat="server" ImageUrl="~/SrcImage/like-action.png"
Height="27px" Width="29px" CommandName="Like" CommandArgument='<%# Container.DataItemIndex %>'/>
<%--<asp:Button ID="LikeBTN" runat="server" Text="Like" CommandName="Like" CommandArgument='<%# Container.DataItemIndex %>' />--%>
<asp:Label ID="LikeStat" runat="server" Visible="false"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Options">
<ItemTemplate>
<asp:LinkButton ID="Edit" runat="server" Text="Edit" CommandName="Edit" />
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="Delete" runat="server" Text="Delete" CommandName="Delete" />
<asp:LinkButton ID="btn_Update" runat="server" Text="Update" CommandName="Update"/>
<asp:LinkButton ID="btn_Cancel" runat="server" Text="Cancel" CommandName="Cancel"/>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="TweetID" Visible="false">
<ItemTemplate>
<asp:HiddenField ID="TweetID" runat="server" Value='<%#Eval("TweetID") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="UserID" Visible="false">
<ItemTemplate>
<asp:HiddenField ID="UserID" runat="server" Value='<%#Eval("UserID") %>'/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
.cs:
protected void Page_Load(object sender, EventArgs e)
{
Session["UserID"] = 1; // To be removed
if(!IsPostBack)
BindGridview();
}
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
int userId = int.Parse(Session["UserID"].ToString());
if (e.CommandName == "Like")
{
int index = Convert.ToInt32(e.CommandArgument);
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(GridView1.DataKeys[index].Value.ToString())))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(GridView1.DataKeys[index].Value.ToString()));
int tweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
LikeHelper.Like(tweetID, userId);
}
else
LikeHelper.Like(int.Parse(GridView1.DataKeys[index].Value.ToString()), userId);
}
if (e.CommandName == "ReTweet")
{
int index = Convert.ToInt32(e.CommandArgument);
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(GridView1.DataKeys[index].Value.ToString())))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(GridView1.DataKeys[index].Value.ToString()));
int tweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
ReTweetHelper.ReTweet(tweetID, userId);
}
else
ReTweetHelper.ReTweet(int.Parse(GridView1.DataKeys[index].Value.ToString()), userId);
}
if (e.CommandName == "UnReTweet")
{
int index = Convert.ToInt32(e.CommandArgument);
int RetweetID = ReTweetHelper.GetReTweetIdFromReTweetByUserIdAndTweetId(int.Parse(GridView1.DataKeys[index].Value.ToString()), userId);
int TweetID = NewTweetHelper.GetTweetIdFromTweetByReTweetId(RetweetID);
ReTweetHelper.RemoveReTweet(RetweetID);
NewTweetHelper.GeneralRemoveTweet(TweetID);
}
if (e.CommandName == "Redirect")
{
int index = Convert.ToInt32(e.CommandArgument);
int TweetID = int.Parse(GridView1.DataKeys[index].Value.ToString());
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(TweetID))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(TweetID);
int RealTweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
int UserID = NewTweetHelper.GetUserIdFromTweetByTweetId(RealTweetID);
Response.Redirect("ProfilePage.aspx?UserName=" + UserHelper.GetUserName(UserID));
}
else
Response.Redirect("ProfilePage.aspx?UserName=" + UserHelper.GetUserName(NewTweetHelper.GetUserIdFromTweetByTweetId(TweetID)));
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
GridView1.DataBind();
//TextBox TextBox = GridView1.Rows[e.NewEditIndex].FindControl("TweetTB") as TextBox;
//HiddenField TweetID = GridView1.Rows[e.NewEditIndex].FindControl("TweetID") as HiddenField;
//TextBox.Text = NewTweetHelper.GetTweetFromTweetByTweetId(int.Parse(TweetID.Value.ToString())).TweetText;
}
protected void GridView1_Cancel(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
GridView1.DataBind();
}
public void BindGridview()
{
int userId = int.Parse(Session["UserID"].ToString());
ServiceReference1.WebServiceSoapClient objWs = new ServiceReference1.WebServiceSoapClient();
DataSet ds = objWs.SelectTweets(userId, 0);
DataTable dt = ds.Tables[0];
GridView1.DataSource = dt;
GridView1.DataBind();
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int userId = int.Parse(Session["UserID"].ToString());
int index = Convert.ToInt32(e.RowIndex);
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(GridView1.DataKeys[index].Value.ToString())))
{
int RetweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(GridView1.DataKeys[index].Value.ToString()));
ReTweetHelper.RemoveReTweet(RetweetID);
NewTweetHelper.GeneralRemoveTweet(int.Parse(GridView1.DataKeys[index].Value.ToString()));
}
else
NewTweetHelper.GeneralRemoveTweet(Convert.ToInt32(GridView1.DataKeys[index].Value.ToString()));
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
int userId = int.Parse(Session["UserID"].ToString());
if (e.Row.RowType == DataControlRowType.DataRow)
{
HiddenField userIdLbl = (HiddenField)e.Row.FindControl("UserID");
HiddenField tweetid = (HiddenField)e.Row.FindControl("TweetID");
LinkButton editBt = (LinkButton)e.Row.FindControl("Edit");
editBt.Visible = userId == Convert.ToInt32(userIdLbl.Value);
ImageButton ProfileImage = e.Row.FindControl("ProfileImage") as ImageButton;
ProfileImage.ImageUrl = "~/UploadedImages/" + UserHelper.GetImageUrl(int.Parse(userIdLbl.Value.ToString()));
// if retweet
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString())))
{
Tweet tweet = NewTweetHelper.GetTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString()));
string FullName = UserHelper.GetName(tweet.UserID);
// change tweet
Label name = e.Row.FindControl("FullNameLabel") as Label;
Label UserName = e.Row.FindControl("UserNameLabel") as Label;
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(tweetid.Value.ToString()));
int RealTweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
int RealUserID = NewTweetHelper.GetUserIdFromTweetByTweetId(RealTweetID);
name.Text = "Retweeted by " + FullName + "<br>" + UserHelper.GetName(RealUserID);
UserName.Text = UserHelper.GetUserName(RealUserID);
ProfileImage.ImageUrl = "~/UploadedImages/" + UserHelper.GetImageUrl(RealUserID);
editBt.Visible = false;
}
//if there is image
Image img = (Image)e.Row.FindControl("TweetPic");
img.Visible = img.ImageUrl != "~/UploadedImages/";
//stats
Label LikeStat = e.Row.FindControl("LikeStat") as Label;
Label ReTweetStat = e.Row.FindControl("ReTweetStat") as Label;
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString())))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(tweetid.Value.ToString()));
int RealTweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
LikeStat.Text = LikeHelper.AmountOfLikesByTweetId(RealTweetID).ToString();
if (int.Parse(LikeStat.Text.ToString()) > 0)
LikeStat.Visible = true;
ReTweetStat.Text = ReTweetHelper.AmountOfReTweets(RealTweetID).ToString();
if (int.Parse(ReTweetStat.Text.ToString()) > 0)
ReTweetStat.Visible = true;
}
else
{
LikeStat.Text = LikeHelper.AmountOfLikesByTweetId(int.Parse(tweetid.Value.ToString())).ToString();
if (int.Parse(LikeStat.Text.ToString()) > 0)
LikeStat.Visible = true;
ReTweetStat.Text = ReTweetHelper.AmountOfReTweets(int.Parse(tweetid.Value.ToString())).ToString();
if (int.Parse(ReTweetStat.Text.ToString()) > 0)
ReTweetStat.Visible = true;
}
// retweeted
if (ReTweetHelper.IsReTweetExistByUserIdAndTweetId(userId,int.Parse(tweetid.Value.ToString())))
{
ImageButton Retweet = e.Row.FindControl("ReTweetImgBTN") as ImageButton;
Retweet.ImageUrl = "~/SrcImage/retweet-action-on.png";
Retweet.CommandName = "UnReTweet";
}
if (NewTweetHelper.IsTweetByUser(int.Parse(tweetid.Value.ToString()), userId))
{
ImageButton Retweet = e.Row.FindControl("ReTweetImgBTN") as ImageButton;
Retweet.ImageUrl = "~/SrcImage/retweet-action-inactive.png";
Retweet.CommandName = null;
}
//Like Button
ImageButton LikeImg = e.Row.FindControl("LikeImgBTN") as ImageButton;
if (NewTweetHelper.IsTweetReTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString())))
{
int ReTweetID = NewTweetHelper.GetReTweetIDFromTweetByTweetID(int.Parse(tweetid.Value.ToString()));
int RealTweetID = ReTweetHelper.GetTweetIDFromReTweetByReTweetID(ReTweetID);
if(LikeHelper.IsUserLikeTweet(userId,RealTweetID))
LikeImg.ImageUrl = "~/SrcImage/like-action-on.png";
}
else
{
if (LikeHelper.IsUserLikeTweet(userId,int.Parse(tweetid.Value.ToString())))
LikeImg.ImageUrl = "~/SrcImage/like-action-on.png";
}
//Hyper Link Text
Label TweetLabel = (Label)e.Row.FindControl("TweetLabel");
//TextBox TweetTB = (TextBox)e.Row.FindControl("TweetTB");
Tweet TweetText = NewTweetHelper.GetTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString()));
//TweetTB.Text = "a";// TweetText.TweetText.ToString();
string text = NewTweetHelper.HyperLinkTweet(int.Parse(tweetid.Value.ToString()));
//TweetText.TweetText= text; //need?
TweetLabel.Text = text;
//Change Tb in edit cand do it in RowEditting
//if (e.Row.RowState == DataControlRowState.Edit)
//{
// TextBox TextBox = e.Row.FindControl("TweetTB") as TextBox;
// Tweet Text = NewTweetHelper.GetTweetFromTweetByTweetId(int.Parse(tweetid.Value.ToString()));
// TextBox.Text = "abc";
//}
}
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
HiddenField TweetID = GridView1.Rows[e.RowIndex].FindControl("TweetID") as HiddenField;
TextBox TweetText = GridView1.Rows[e.RowIndex].FindControl("TweetTB") as TextBox;
NewTweetHelper.UpdateTweet(int.Parse(TweetID.Value), TweetText.Text);
GridView1.EditIndex = -1;
BindGridview();
}

In the RowEditing event, you can set the EditIndex value and re-bind the data to the GridView:
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
BindGridView();
}
protected void GridView1_Cancel(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
BindGridView();
}
Then, in the RowDataBound event, you can access the controls of the row:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowIndex == GridView1.EditIndex)
{
TextBox txtBox = e.Row.FindControl("TweetTB") as TextBox;
...
}
else
{
...
}
}

Search btn with paging in grid view

I have created gridview with paging and search a data within gridview.I have number of data and number of page if u filter data in gridview it successfully display result with paging. After display i will click on next page because gridview will display only 10 records per page but i have more than 10 records which i have filtered so it will display page wise. Then when i click next page gridview will loads whole data from database and display but i want display only filtered record while searching data.
the aspx code is below
<asp:Button ID="Search" Text="Search" runat="server" CssClass="searchbtn" OnClick="Search_Click" />
<asp:GridView ID="gvEdit" runat="server" AutoGenerateColumns="False" DataKeyNames="slno" OnRowCreated="gvEdit_RowCreated" OnPageIndexChanging="gvEdit_PageIndexChanging" Width="100%" AllowPaging="True" PageSize="10" OnRowCommand="gvEdit_RowCommand">
<HeaderStyle HorizontalAlign="Center" BackColor="#2D96CE" ForeColor="White" />
<AlternatingRowStyle BackColor="#D4EFFD" />
<PagerSettings Position="Top" />
<PagerStyle Height="8px" HorizontalAlign="Center" />
<PagerTemplate>
<table align="center" style="width: 100%;" cellpadding="0" cellspacing="0" border="0">
<tr>
<td align="center" style="width: 60%;">
<table align="center" width="50%">
<tr>
<td>
<asp:ImageButton ToolTip="First Page" CommandName="Page" CommandArgument="First" runat="server" ID="ImgeBtnFirst" ImageUrl="../Images/First.jpg" />
</td>
<td>
<asp:ImageButton ToolTip="Previous Page" CommandName="Page" CommandArgument="Prev" runat="server" ID="ImgbtnPrevious" ImageUrl="../Images/Previous.jpg" />
</td>
<td style=" width: 8%;">
<asp:Label ID="lblpageindx" CssClass="labelBold" Text="Page : " runat="server"></asp:Label>
<asp:DropDownList ToolTip="Goto Page" ID="ddlPageSelector" runat="server" AutoPostBack="true" OnSelectedIndexChanged="ddlPageSelector_SelectedIndexChanged" CssClass="combo_common_nowidth hide">
</asp:DropDownList>
</td>
<td>
<asp:ImageButton ToolTip="Next Page" CommandName="Page" CommandArgument="Next" runat="server" ID="ImgbtnNext" ImageUrl="../Images/Next.jpg" />
</td>
<td>
<asp:ImageButton ToolTip="Last Page" CommandName="Page" CommandArgument="Last" runat="server" ID="ImgbtnLast" ImageUrl="../Images/Last.jpg" />
</td>
</tr>
</table>
</td>
</tr>
</table>
</PagerTemplate>
<Columns>
<asp:BoundField DataField="form_key" HeaderText="FilingID" HeaderStyle-CssClass="hide" ItemStyle-CssClass="hide" />
<asp:BoundField DataField="business_key" HeaderText="BusinessKey" HeaderStyle-CssClass="hide" ItemStyle-CssClass="hide" />
<asp:BoundField DataField="ref_no" HeaderText="Reference" HeaderStyle-Width="200px" />
<asp:BoundField DataField="fum" HeaderText="Period" HeaderStyle-Width="11%" />
<asp:BoundField DataField="filing_type" HeaderText="Filing Type" HeaderStyle-Width="19%" />
<asp:BoundField DataField="business_name" HeaderText="Business" HeaderStyle-Width="13%" />
<asp:BoundField DataField="filing_status" HeaderText="Status" HeaderStyle-Width="200px" />
<asp:TemplateField HeaderStyle-Width="120px" HeaderText="View">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" OnClick="lnkBtnViewDetails_Click" Text='<%#Eval("form_details")%>'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="" HeaderText="Schedule1" ItemStyle-Width="6.9%">
<ItemTemplate>
<a href="Schedule12290.aspx?key=<%#Eval("form_key") %>" target="_blank">
<img src="<%#Eval("schedule1") %>" alt="" />
</a>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="120px" HeaderText="Copy">
<ItemTemplate>
<asp:ImageButton ID="lnkDuplicate" runat="server"
ImageUrl="~/Images/grid/file_duplicate 35x35.png" OnClick="lnkbtnDuplicate_Click" ToolTip="Edit" CssClass='<%#Eval("duplicate") %>' OnClientClick="javascript:return confirm('Are you sure you want to copy from previous years filing?');" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="120px" HeaderText="Edit">
<ItemTemplate>
<asp:ImageButton ID="lnkBtnContinue" runat="server"
ImageUrl="~/Images/grid/edit3.png" OnClick="imgBtnContinue_Click" ToolTip="Edit" CssClass='<%# Eval("continue")%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-Width="120px" HeaderText="Delete">
<ItemTemplate>
<asp:ImageButton ID="imgBtnDel" runat="server"
ImageUrl="~/Images/grid/delBlue.png" OnClick="imgBtnDelete_Click" ToolTip="Delete" CssClass='<%#Eval("delete") %>' OnClientClick="javascript:return confirm('Do you want to delete this file permanently?');" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
and aspx.cs code is below
protected void Search_Click(object sender, EventArgs e)
{
this.BindGrid();
}
private void BindGrid()
{
try
{
if (txtsearch.Text != "")
{
if (ViewState["data"] != null)
{
DataTable dt = (DataTable)ViewState["data"];
DataView dv = new DataView(dt);
dv.RowFilter = "ref_no Like '%" + txtsearch.Text + "%' OR fum Like '%" + txtsearch.Text + "%' OR filing_type Like '%" + txtsearch.Text + "%'OR business_name Like '%" + txtsearch.Text + "%'OR filing_status Like '%" + txtsearch.Text + "%'";
ViewState["filter"] = dv;
gvEdit.DataSource = dv;
gvEdit.DataBind();
//gvformlist.DataSource = dv;
//gvformlist.DataBind();
}
}
}
catch (Exception ex)
{
string a = ex.Message;
}
}
protected void Reset_Click(object sender, EventArgs e)
{
txtsearch.Text = "";
gvEdit.DataSource = ViewState["data"];
gvEdit.DataBind();
//gvformlist.DataSource = ViewState["data"];
//gvformlist.DataBind();
}
protected void gvformlist_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
//gvEdit.PageIndex = e.NewPageIndex;
//gvformlist.PageIndex = e.NewPageIndex;
LoadFormList();
}
protected void gvformlist_RowDataBound(object sender, GridViewRowEventArgs e)
{
GridViewRow pagerRow = gvEdit.TopPagerRow;
Label pageLabel = (Label)pagerRow.Cells[0].FindControl("CurrentPageLabel");
if (e.Row.RowType == DataControlRowType.Pager)
{
pageLabel.Text = "Page " + (gvEdit.PageIndex + 1) + " of " + gvEdit.PageCount;
}
}
protected void gvEdit_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
gvEdit.PageIndex = e.NewPageIndex;
LoadFormList();
}
public void SetPagerButtonStates(GridView gridView, GridViewRow gvPagerRow, Page page, string DDlPager)
{
// to Get No of pages and Page Navigation
int pageIndex = gridView.PageIndex;
int pageCount = gridView.PageCount;
ImageButton btnFirst = (ImageButton)gvPagerRow.FindControl("ImgeBtnFirst");
ImageButton btnPrevious = (ImageButton)gvPagerRow.FindControl("ImgbtnPrevious");
ImageButton btnNext = (ImageButton)gvPagerRow.FindControl("ImgbtnNext");
ImageButton btnLast = (ImageButton)gvPagerRow.FindControl("ImgbtnLast");
btnFirst.Enabled = btnPrevious.Enabled = (pageIndex != 0);
btnNext.Enabled = btnLast.Enabled = (pageIndex < (pageCount - 1));
DropDownList ddlPageSelector = (DropDownList)gvPagerRow.FindControl(DDlPager);
ddlPageSelector.Items.Clear();
for (int i = 1; i <= gridView.PageCount; i++)
{
ddlPageSelector.Items.Add(i.ToString());
}
ddlPageSelector.SelectedIndex = pageIndex;
string strPgeIndx = Convert.ToString(gridView.PageIndex + 1) + " of "
+ gridView.PageCount.ToString();
Label lblpageindx = (Label)gvPagerRow.FindControl("lblpageindx");
lblpageindx.Text += strPgeIndx;
}
protected void ddlPageSelector_SelectedIndexChanged(object sender, EventArgs e)
{
gvEdit.PageIndex = ((DropDownList)sender).SelectedIndex;
LoadFormList();
}
protected void gvEdit_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Pager)
{
SetPagerButtonStates(gvEdit, e.Row, this, "ddlPageSelector");
}
}
protected void gvEdit_RowCommand(object sender, GridViewCommandEventArgs e)
{
}
I have changed code in gvEdit_PageIndexChanging as per someone suggestion code is below
protected void gvEdit_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
try
{
if (ViewState["filter"] != null)
{
gvEdit.PageIndex = e.NewPageIndex;
gvEdit.DataSource = ViewState["filter"];
gvEdit.DataBind();
}
else
{
gvEdit.PageIndex = e.NewPageIndex;
LoadFormList();
}
}
catch (Exception ex)
{
string a = ex.Message;
}
}
after that i run the code and i am getting error
error is System.Runtime.Serialization.SerializationException: Type 'System.Data.DataView' in Assembly 'System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable.

According to your question I try to give an answer. If you find my answer useful then mark is as answer or vote it up.
What I have done in below code is when user click on search button without input any student name it shows per page 10 records of all students and if you search by name it shows only specific students with paging. In below code I use a stored procedure and in that I put three parameters such as following:
#startRowIndex int
#pageSize int
#studentname varchar(50) = NULL
Default.aspx markup:
<form id="form1" runat="server">
<asp:ScriptManager runat="server"></asp:ScriptManager>
<asp:UpdatePanel runat="server">
<ContentTemplate>
<table>
<tr>
<td>Gridview Pagging</td>
</tr>
<tr>
<td>
<asp:TextBox ID="searchbox" runat="server"></asp:TextBox>
</td>
<td>
<asp:Button ID="btnSearch" Text="Search" runat="server" OnClick="btnSearch_Click" />
</td>
</tr>
</table>
<div>
<asp:GridView ID="gv" runat="server" Width="100%" EmptyDataText="No Data Found!"
ShowFooter="False" AutoGenerateColumns="False" SkinID="WithOutPaging" GridLines="Horizontal">
<Columns>
<asp:BoundField DataField="Studentname" HeaderText="Student Names"></asp:BoundField>
<asp:BoundField DataField="Studentage" HeaderText="Age"></asp:BoundField>
</Columns>
<EmptyDataRowStyle CssClass="emptyrow" />
<HeaderStyle CssClass="headerstyle2" />
<FooterStyle CssClass="footerstyle"></FooterStyle>
<EditRowStyle CssClass="editrowstyle"></EditRowStyle>
<SelectedRowStyle CssClass="selectedrowstyle"></SelectedRowStyle>
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center"></PagerStyle>
</asp:GridView>
</div>
<div style="margin-top: 20px; margin-bottom: 70px;" align="center">
<asp:Button ID="btnFirst" runat="server" Text="First" CommandName="First" OnCommand="ChangePage"
Visible="False" />
<asp:Button ID="btnPrevious" runat="server" Text="Previous" CommandName="Previous"
OnCommand="ChangePage" Visible="False" />
<asp:Button ID="btnNext" runat="server" Text="Next" CommandName="Next" OnCommand="ChangePage"
Visible="False" />
<asp:Button ID="btnLast" runat="server" Text="Last" CommandName="Last" OnCommand="ChangePage"
Visible="False" />
<br />
<br />
<asp:Label ID="lblPageText1" runat="server" CssClass="label" Visible="False" BackColor="Transparent"
BorderColor="Transparent" ForeColor="#3495D0"> Page </asp:Label>
<asp:Label ID="lblCurrentPage" runat="server" CssClass="label" Visible="False" BackColor="Transparent"
BorderColor="Transparent" ForeColor="#5c5c5c"></asp:Label>
<asp:Label ID="lblPageText2" runat="server" CssClass="label" Visible="False" BackColor="Transparent"
BorderColor="Transparent" ForeColor="#3495D0"> of </asp:Label>
<asp:Label ID="lbltotalPages" runat="server" CssClass="label" Visible="False" BackColor="Transparent"
BorderColor="Transparent" ForeColor="#5c5c5c"></asp:Label>
</div>
</ContentTemplate>
</asp:UpdatePanel>
</form>
Default.aspx.cs code:
#region "Declaration"
private int pageSize = 10;
SqlConnection con;
string conquery = "Data Source=.;Initial Catalog=GridviewPagging;User ID=sa;Password = 123";
#endregion
#region "Events"
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
ViewState["startRowIndex"] = 0;
ViewState["currentPageNumber"] = 0;
}
}
protected void ChangePage(object sender, CommandEventArgs e)
{
switch (e.CommandName)
{
case "First":
ViewState["currentPageNumber"] = 1;
ViewState["startRowIndex"] = 0;
break;
case "Previous":
ViewState["currentPageNumber"] = Int32.Parse(lblCurrentPage.Text) - 1;
ViewState["startRowIndex"] = Convert.ToInt32(ViewState["startRowIndex"]) - pageSize;
break;
case "Next":
ViewState["currentPageNumber"] = Int32.Parse(lblCurrentPage.Text) + 1;
ViewState["startRowIndex"] = Convert.ToInt32(ViewState["startRowIndex"]) + pageSize;
break;
case "Last":
ViewState["startRowIndex"] = pageSize * (Int32.Parse(lbltotalPages.Text) - 1);
ViewState["currentPageNumber"] = lbltotalPages.Text;
break;
}
this.fillgridview();
}
protected void btnSearch_Click(object sender, EventArgs e)
{
fillgridview();
}
#endregion
#region "Methods"
private DataSet ds(int RowIndex, int Pagesize, string studentname)
{
DataSet dataset;
try
{
con = new SqlConnection(conquery);
SqlCommand cmd = new SqlCommand("SP_GET_STUDENT_DATA", con);
cmd.Parameters.AddWithValue("#startRowIndex", RowIndex);
cmd.Parameters.AddWithValue("#pageSize", Pagesize);
cmd.Parameters.AddWithValue("#studentname", studentname);
cmd.CommandType = CommandType.StoredProcedure;
using (SqlDataAdapter da = new SqlDataAdapter())
{
da.SelectCommand = cmd;
dataset = new DataSet();
da.Fill(dataset);
}
return dataset;
}
catch (SqlException ex)
{
return dataset = null;
}
}
private void fillgridview()
{
DataSet newds = ds(Convert.ToInt32(ViewState["startRowIndex"].ToString()), pageSize, searchbox.Text.Trim());
if (newds.Tables.Count == 0)
{
return;
}
else
{
btnFirst.Visible = true;
btnPrevious.Visible = true;
btnNext.Visible = true;
btnLast.Visible = true;
lblCurrentPage.Visible = true;
lbltotalPages.Visible = true;
lblPageText1.Visible = true;
lblPageText2.Visible = true;
ViewState["TotalRows"] = newds.Tables[1].Rows[0][0];
newds.Tables[1].Rows.Clear();
if (Convert.ToInt32(ViewState["currentPageNumber"]) == 0)
{
ViewState["currentPageNumber"] = 1;
}
setPages();
this.gv.Visible = true;
this.gv.DataSource = newds.Tables[0];
this.gv.DataBind();
}
}
private void setPages()
{
lbltotalPages.Text = "";
lblCurrentPage.Text = "";
try
{
lbltotalPages.Text = CalculateTotalPages(Convert.ToDouble(ViewState["TotalRows"])).ToString();
lblCurrentPage.Text = (ViewState["currentPageNumber"] == null ? "0" : ViewState["currentPageNumber"].ToString());
if (Int32.Parse(lblCurrentPage.Text) == 0 | Int32.Parse(lbltotalPages.Text) == 0)
{
this.btnPrevious.Enabled = false;
this.btnFirst.Enabled = false;
this.btnNext.Enabled = false;
this.btnLast.Enabled = false;
}
else
{
if (Convert.ToInt32(ViewState["currentPageNumber"]) == 1)
{
this.btnPrevious.Enabled = false;
this.btnFirst.Enabled = false;
if (int.Parse(lbltotalPages.Text) > 0)
{
this.btnNext.Enabled = true;
this.btnLast.Enabled = true;
}
else
{
this.btnNext.Enabled = false;
this.btnLast.Enabled = false;
}
}
else
{
btnPrevious.Enabled = true;
btnFirst.Enabled = true;
}
if (Convert.ToInt32(ViewState["currentPageNumber"]) == int.Parse(lbltotalPages.Text))
{
btnNext.Enabled = false;
btnLast.Enabled = false;
}
else
{
btnNext.Enabled = true;
btnLast.Enabled = true;
}
}
}
catch (Exception ex)
{
}
}
private int CalculateTotalPages(double totalrows)
{
return Convert.ToInt32(Math.Ceiling(totalrows / pageSize));
}
#endregion

first set enablepagingandcallback = false in gridview , then add
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
GridView1.DataSource = SqlDataSource1; //it is the datasource with filtered query which does the work
GridView1.DataBind();
}

Multiple controls in one itemtemplate - GridView

I have a gridview in web application which show textboxes in each columns in page load event. Now what I want to do is to add another label control in this itemtemplate. Show that when I type something in the textbox and click save, I can show the label instead of the textbox to my database. I got the saving part work fine but not sure how to show the text I typed in a label. What I have right now is after I clicked the save button, the textbox stay in the gridview and label not show up. Any idea how to fix this?
<asp:GridView ID='gvMain' ruant="server">
<Columns>
<asp:TemplateField HeaderText ="LastName">
<ItemTemplate>
<asp:TextBox ID="txtFName" runat="server"/>
<asp:Label ID="lblFName" ruant="server" />
</Columns>
</asp:GridView>
Please see this link for reference.
http://www.aspsnippets.com/Articles/Adding-Dynamic-Rows-in-ASP.Net-GridView-Control-with-TextBoxes.aspx

I would add both controls to a cell item template and hide/show them based on if I save a row or add a new one. So, my code would be like the following:
Markup:
<form id="form1" runat="server">
<div>
<asp:GridView ID="Gridview1" runat="server" ShowFooter="true" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="RowNumber" HeaderText="Row Number" />
<asp:TemplateField HeaderText="Header 1">
<ItemTemplate>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("Column1") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Header 2">
<ItemTemplate>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("Column2") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Header 3">
<ItemTemplate>
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
<asp:Label ID="Label3" runat="server" Text='<%# Eval("Column3") %>'></asp:Label>
</ItemTemplate>
<FooterStyle HorizontalAlign="Right" />
<FooterTemplate>
<asp:Button ID="ButtonAdd" runat="server" Text="Add New Row"
OnClick="ButtonAdd_Click" />
<asp:Button ID="ButtonSave" runat="server" Text="Save"
OnClick="ButtonSave_Click" />
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
Code-behind:
private void SetInitialRow() {
DataTable dt = new DataTable();
DataRow dr = null;
dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
dt.Columns.Add(new DataColumn("Column1", typeof(string)));
dt.Columns.Add(new DataColumn("Column2", typeof(string)));
dt.Columns.Add(new DataColumn("Column3", typeof(string)));
dr = dt.NewRow();
dr["RowNumber"] = 1;
dr["Column1"] = string.Empty;
dr["Column2"] = string.Empty;
dr["Column3"] = string.Empty;
dt.Rows.Add(dr);
Table = dt;
BindGrid();
SwitchMode(false);
}
private void AddNewRowToGrid() {
if(Table != null) {
DataRow row = Table.NewRow();
Table.Rows.Add(row);
BindGrid();
SwitchMode(false);
}
else {
Response.Write("ViewState is null");
}
}
private void SaveRow() {
if(Table != null) {
int rowIndex = Table.Rows.Count - 1;
TextBox box1 = (TextBox)Gridview1.Rows[rowIndex].Cells[1].FindControl("TextBox1");
TextBox box2 = (TextBox)Gridview1.Rows[rowIndex].Cells[2].FindControl("TextBox2");
TextBox box3 = (TextBox)Gridview1.Rows[rowIndex].Cells[3].FindControl("TextBox3");
Table.Rows[rowIndex]["Column1"] = box1.Text;
Table.Rows[rowIndex]["Column2"] = box2.Text;
Table.Rows[rowIndex]["Column3"] = box3.Text;
BindGrid();
SwitchMode(true);
}
else {
Response.Write("ViewState is null");
}
}
private void SwitchMode(bool add) {
Button saveBtn = (Button)Gridview1.FooterRow.Cells[3].FindControl("ButtonSave");
saveBtn.Visible = !add;
Button addBtn = (Button)Gridview1.FooterRow.Cells[3].FindControl("ButtonAdd");
addBtn.Visible = add;
SwitchControl(add);
}
private void SwitchControl(bool add) {
for(int i = 0; i < Table.Rows.Count; i++) {
bool txtVisible = false;
if (i == Table.Rows.Count - 1) {
txtVisible = !add;
}
TextBox box1 = (TextBox)Gridview1.Rows[i].Cells[1].FindControl("TextBox1");
box1.Visible = txtVisible;
TextBox box2 = (TextBox)Gridview1.Rows[i].Cells[2].FindControl("TextBox2");
box2.Visible = txtVisible;
TextBox box3 = (TextBox)Gridview1.Rows[i].Cells[3].FindControl("TextBox3");
box3.Visible = txtVisible;
Label label1 = (Label)Gridview1.Rows[i].Cells[1].FindControl("Label1");
label1.Visible = !txtVisible;
Label label2 = (Label)Gridview1.Rows[i].Cells[2].FindControl("Label2");
label2.Visible = !txtVisible;
Label label3 = (Label)Gridview1.Rows[i].Cells[3].FindControl("Label3");
label3.Visible = !txtVisible;
}
}
private DataTable Table {
get {
return ViewState["CurrentTable"] as DataTable;
}
set {
ViewState["CurrentTable"] = value;
}
}
private void BindGrid() {
Gridview1.DataSource = Table;
Gridview1.DataBind();
}
protected void Page_Load(object sender, EventArgs e) {
if(!Page.IsPostBack) {
SetInitialRow();
}
}
protected void ButtonAdd_Click(object sender, EventArgs e) {
AddNewRowToGrid();
}
protected void ButtonSave_Click(object sender, EventArgs e) {
SaveRow();
}
So, first I see the Grid with one row and I can populate it with data via TextBoxes and click Save. Then, TextBoxes become Labels and Add New Row is visible. If I click it, a new row with TextBoxes appears.

findcontrol footertemplate in datagrid asp

i want to findcontrol of Footertemplate in DataGrid Asp . But it return null . Can you help me .
<asp:DataGrid ID="dtgDSSP" runat="server" AutoGenerateColumns="false" OnItemDataBound="dtgDSSP_ItemDataBound"
ShowFooter="true" onselectedindexchanged="dtgDSSP_SelectedIndexChanged">
<Columns>
<asp:TemplateColumn HeaderText="Sản Phẩm">
<ItemTemplate>
<asp:HiddenField ID="HidIDSP" runat="server" />
<asp:DropDownList ID="dropSanPham" runat="server">
</asp:DropDownList>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="dropSPAdd" runat="server">
</asp:DropDownList>
</FooterTemplate>
</asp:TemplateColumn>
Code behind :
protected void dtgDSSP_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList dropAdd;
int footerIndex = dtgDSSP.Controls[0].Controls.Count - 1;
dropAdd = dtgDSSP.Controls[0].Controls[footerIndex].FindControl("dropSPAdd") as DropDownList;
if (dropAdd != null)
{
dropAdd.DataSource = Constant.dictSanPham;
dropAdd.DataValueField = "key";
dropAdd.DataTextField = "value";
dropAdd.DataBind();
}
}

Get Footer dropSPAdd control with below syntex:
dtgDSSP.Controls[0].Controls[dtgDSSP.Controls[0].Controls.Count - 1].Controls[0].FindControl("dropSPAdd") as DropDownList
So Check below code
Html :-
<asp:DataGrid ID="dtgDSSP" runat="server" AutoGenerateColumns="false" OnItemDataBound="dtgDSSP_ItemDataBound"
ShowFooter="true" OnSelectedIndexChanged="dtgDSSP_SelectedIndexChanged">
<Columns>
<asp:TemplateColumn HeaderText="Sản Phẩm">
<ItemTemplate>
<asp:HiddenField ID="HidIDSP" runat="server" />
<asp:DropDownList ID="dropSanPham" runat="server">
</asp:DropDownList>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="dropSPAdd" runat="server">
</asp:DropDownList>
</FooterTemplate>
</asp:TemplateColumn>
<asp:ButtonColumn Text="Select" CommandName="Select"></asp:ButtonColumn>
</Columns>
</asp:DataGrid>
Code Behind:-
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
System.Data.DataTable dtobj = new System.Data.DataTable();
dtobj.Columns.Add("Test");
dtobj.Rows.Add();
dtobj.Rows[dtobj.Rows.Count - 1]["Test"] = "Testimg";
dtobj.Rows.Add();
dtobj.Rows[dtobj.Rows.Count - 1]["Test"] = "Testimg111";
dtgDSSP.DataSource = dtobj;
dtgDSSP.DataBind();
}
}
protected void dtgDSSP_SelectedIndexChanged(object sender, EventArgs e)
{
var dropAdd = dtgDSSP.Controls[dtgDSSP.Controls.Count - 1].Controls[dtgDSSP.Controls[0].Controls.Count - 1].Controls[0].FindControl("dropSPAdd") as DropDownList;
if (dropAdd != null)
{
dropAdd.DataSource = Constant.dictSanPham;
dropAdd.DataValueField = "key";
dropAdd.DataTextField = "value";
dropAdd.DataBind();
}
}
protected void dtgDSSP_ItemDataBound(object sender, DataGridItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Footer)
{
var dropAdd = e.Item.Controls[0].FindControl("dropSPAdd") as DropDownList;
if (dropAdd != null)
{
dropAdd.DataSource = Constant.dictSanPham;
dropAdd.DataValueField = "key";
dropAdd.DataTextField = "value";
dropAdd.DataBind();
}
}
}

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