In my gridView I've inserted the edit command name for every single row.
Now I need when the database value of myDate is not null stopping the edit in this row.
I tried this solution, but in GV see the icon stop.gif when the database value of myDate is not null, but if click in stop.gif the edit row is open, why?
Can you help me?
Thanks in advance.
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<center>
<asp:ImageButton ID="imgbtnEdit" CommandName="Edit" runat="server"
ImageUrl='<%#(String.IsNullOrEmpty(Eval("myDate").ToString()) ? "/Images/edit.gif" : "/Images/stop.gif")%>'
ToolTip="Edit" /></center>
</ItemTemplate>
<EditItemTemplate>
<center>
<asp:ImageButton ID="imgbtnUpdate" CommandName="Update" runat="server" ImageUrl="/Images/update.gif"
ToolTip="Update" />
<asp:ImageButton ID="imgbtnCancel" runat="server" CommandName="Cancel" ImageUrl="/Images/cancel.gif"
ToolTip="Cancel" />
</EditItemTemplate>
</asp:TemplateField>
If you just make the image url blank, it does not mean that you are not rendering the control. The button will still render. What you could do instead is like below
<asp:ImageButton ID="imgbtnEdit" CommandName="Edit" runat="server"
ImageUrl='/Images/stop.gif'
Visbile = '<%#Eval("myDate").HasValue %>'
ToolTip="Edit" />
Related
Greetings fellow developers. I am new to ASP.NET C# so pardon me if there are areas that I missed out/
Current in my project, I have this Gridview - where I used "TemplateField" for almost every data field. My issue is, I do not know how can I pass the value in to another page. I tried using SESSION but unfortunately, it is not working. I also tried using BOUNDFIELD, it works but it does not fulfil my project requirement as the default setting for BOUNDFIELD is textbox, I want it to be a DROPDOWN LIST control instead. Any kind advice would be much appreciated. Attached below is my codes.
WebForm1.aspx
<asp:GridView ID="Gridview1" runat="server" AutoGenerateColumns="False" OnPageIndexChanging="Gridview1_PageIndexChanging" OnRowCancelingEdit="Gridview1_RowCancelingEdit" OnRowCommand="Gridview1_RowCommand" OnRowDeleting="Gridview1_RowDeleting" OnRowEditing="Gridview1_RowEditing" OnRowUpdating="Gridview1_RowUpdating" ShowFooter="True" BorderStyle="None" BorderWidth="1px" CellPadding="3" CellSpacing="2" ShowHeaderWhenEmpty="True" Width="100%" CssClass="table table-responsive table-bordered" OnSelectedIndexChanged="Gridview1_SelectedIndexChanged" DataKeyNames="CID">
<Columns>
<asp:TemplateField HeaderText="Transaction ID">
<EditItemTemplate>
<asp:Label ID="lbleditid" runat="server" Text='<%# Bind("CID") %>'></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblid" runat="server" Text='<%# Bind("CID") %>'></asp:Label>
</ItemTemplate>
<HeaderStyle CssClass="hidden-xs" />
<ItemStyle CssClass="hidden-xs" />
</asp:TemplateField>
<asp:TemplateField HeaderText="CCID">
<EditItemTemplate>
<asp:Label ID="lblccid2" runat="server"></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblccid" runat="server" Text='<%# Bind("CCID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Category" SortExpression="Category">
<EditItemTemplate>
<%--<asp:TextBox ID="txtBox_Cat" runat="server" Text='<%# Bind("Category") %>'></asp:TextBox>--%>
<asp:DropDownList ID="ddlCategory" runat="server" >
<asp:ListItem Value="--Select--">--Select--</asp:ListItem>
<asp:ListItem Value="Transportation">Transportation</asp:ListItem>
<asp:ListItem Value="Children">Children </asp:ListItem>
<asp:ListItem Value="Food">Food</asp:ListItem>
</asp:DropDownList>
</EditItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="ddlCategory1" runat="server">
<asp:ListItem>--Select--</asp:ListItem>
<asp:ListItem>Transportation</asp:ListItem>
<asp:ListItem>Children </asp:ListItem>
<asp:ListItem>Food </asp:ListItem>
</asp:DropDownList>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("Category") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Last Edited">
<EditItemTemplate>
<asp:TextBox ID="txtDateTime1" runat="server" Text='<%# Bind("Last_Edited") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtDateTime" runat="server" ToolTip="DD/MM/YYYY"></asp:TextBox>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="lblDateTime" runat="server" Text='<%# Bind("Last_Edited") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit" ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update" Text="Update"></asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel"></asp:LinkButton>
</EditItemTemplate>
<FooterTemplate>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="true" CommandName="AddNew" Text="Add New"></asp:LinkButton>
</FooterTemplate>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField HeaderText="Delete" ShowDeleteButton="True" ShowHeader="True" />
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="LinkButton3" runat="server" OnClick="PassData">Select</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
WebForm1.aspx.cs
protected void PassData(object sender, EventArgs e)
{
GridViewRow gr = ((sender as LinkButton).NamingContainer as GridViewRow);
Session["Category"] = gr.Cells[1].Text.Trim();
Response.Redirect("AfterUserMthlyExpenses.aspx");
}
WebForm2.aspx
<asp:Label ID="lblPassCategory" runat="server" ></asp:Label>
WebForm2.aspx.cs
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//Passing "Category" from previous page
lblPassCategory.Text = Session["Category"].ToString();
}
}
Well, really one should hold off on the passing of the value to the next page until such time you have a working simple answer to select/get the given row that you clicked on right?
Be it a repeater, grid view, list view (details view) etc.?
In asp.net they ALL FOLLOW the same process. You want to have that button click set/move/change to the correct given row that you clicked on. Until you have that “movement” or selection of the row occur, then you will fail at attempting to grab values from that row.
So, looking at this, you have a link button (it could be a asp.net button if want – don’t matter), you need that button to trigger/set/move/cause the row you are working on to change FIRST and BEFORE you attempt to grab data/values from that given row.
The WAY you do this is to add a special command. As noted, this works for list view/grivdview/repeater and MANY more data bound controls.
so what you learn here can apply to just about ANY data aware control (that repeats data).
So, add this to the one link button in the item template:
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="LinkButton3" runat="server"
CommandName = "MyJump"
CommandArgument = '<%# Eval("Category") %>'
>Select</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
So, the INSTANT you add CommandName="Select", then this will cause TWO events of the grid to fire.
OnRowComand:
The row command event will fire. But the row HAS NOT YET changed!
However, since we use CommandArgument and pass "Catagory", then we of course can use the rowcomamnd event, and pick up the CommandArgument value.
So, you can have this code in row command event:
Protected Sub GridView1_RowCommand(sender As Object, e As GridViewCommandEventArgs) Handles GridView1.RowCommand
Debug.Print("row command = " & e.CommandName)
Debug.Print("row arg = " & e.CommandArgument)
If e.CommandName = "MySelect" Then
' do whatever
End If
End Sub
Note how we don't need (you can remove) the on-click event for that button - you use the rowcommand event stub, and pick up the custom command name you passed (MySelect).
You can ALSO trigger the selected row event to fire. This would allow you to use/keep/have your EXISTING code click stub for your button.
However you now MUST change the CommandName from "your custom" name to either;
Select (move the grid pointer)
Edit - trigger edit event
Delete - trigger delete event
However, in your button click (as you have now).
You could try this:
Dim btn As Button = sender
Dim gvRow As GridViewRow = btn.Parent.Parent
Debug.Print("btn row sel = " & gvRow.RowIndex)
Debug.Print("btn argument = " & btn.CommandArgument)
So you can try btn.Parent (that will be the grid cell, and parent again will return the ONE row as you have. From that, you can grab any value out of that row.
eg:
dim myLable as label
myLabel = gvRow.FindControl("Label1")
debug.print myLabel.Text (should return catagory).
Probably most easy to just add a CommandArgument, and pick it up from sender.
Now that you first and foremost verify that you have the correct value, then you can shove that value into session. in fact you can even shove in the whole gvRow into session, and thus pass all of the values of that row to the page you jump to.
I have a problem with placing RequiredFieldValidator into a DataList, and some assistance would be greatly appreciated.
Problem description:
When I place the <asp:RequiredFieldValidator>inside the <ItemTemplate> and run the page I get the following error page:
When I place it outside of it, the page works with no error, but obviously it cannot identify witch <asp:TextBox> does not have content in it, before it is posted back. And I would like to make where it is able to tell if a particular text box in the data list does not have text entered.
Here is the markup: (the Image src attribute is not implemented yet)
<asp:DataList ID="imageUploadRoster" runat="server"
DataSourceID="ImageUploadRosterDataSource" RepeatDirection="Horizontal" RepeatColumns="5" HorizontalAlign="Left">
<HeaderTemplate>
<h3>Set Image Names</h3>
</HeaderTemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Height="180px" Width="180px" />
<ItemTemplate>
<div class="imageSetNameDiv">
<asp:HiddenField ID="ImageId" runat="server" Value='<%# Eval("ImageId") %>' />
<asp:HiddenField ID="ImageMimeTypeLabel" runat="server" Value='<%# Eval("ImageMimeType") %>' />
<asp:Image ID="ImageThumbnailLabel" runat="server" Src='<%# Eval("ImageThumbnail") %>' Width="120px" Height="120px" />
<br />
<asp:RequiredFieldValidator ID="imageNameRequired" runat="server"
ControlToValidate="ImageName" ErrorMessage="RequiredFieldValidator"
ValidationGroup="imageUploadValid">
</asp:RequiredFieldValidator>
<asp:TextBox ID="ImageName" runat="server" Text='<%# Eval("ImageName") %>' />
<br />
<hr />
<asp:Button ID="removeImage" runat="server" Text="Remove" CommandName="delete" CommandArgument='<%# Eval("ImageId") %>' />
</div>
</ItemTemplate>
</asp:DataList>
Thank you in advance for any assistance.
Peter
This error happens when ASP.NET encounters two controls with the same ID on the page. I guess for some reason in your case validators for each item get the same ID. Setting the following property:
ClientIDMode="Predictable"
for validator should fix it. This mode makes sure control in databound context gets correct ID.
I have a gridview which pulls data from a database:
I wan't to make the content within task a linkbutton that can be clicked to show a popup with additional informatiom.
When I make the column linkbuttons it is also making Total: and Subtotal: a link button:
<asp:TemplateField HeaderText="Task" ItemStyle-Width="20%">
<ItemTemplate>
<asp:LinkButton ID="taskLinkButton" runat="server"
Text='<%# Eval("Task")%>'>
</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
How do I prevent these specific rows from being link buttons?
A bit dirty but this should do the trick:
So i coulnt get to call Databinder.Eval inside <% %>, I'm not sure if it's actually possible, so I went with a different solution. The following worked for me (and its even shorter than last version):
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton Text='<%# Eval("task") %>' Visible='<%# Eval("incidentN") != null %>' runat="server" />
<asp:Literal Text='<%# Eval("task") %>' Visible='<%# Eval("incidentN") == null %>' runat="server" />
</ItemTemplate>
</asp:TemplateField>
You can use a PlaceHolder with conditional visibility
<asp:PlaceHolder ID="Ok" runat="server" Visible='<%# (Eval("LoadStatus").ToString()=="false"?true:false) %>'><%----%>
<asp:Label ID="Label1" Text='<%# Eval("Task")%>' runat="server" />
</asp:PlaceHolder>
<asp:PlaceHolder ID="Ko" runat="server" Visible='<%# (Eval("LoadStatus").ToString()=="false"?false:true) %>'><%----%>
<asp:LinkButton ID="taskLinkButton" runat="server"
Text='<%# Eval("Task")%>'>
</asp:LinkButton>
</asp:PlaceHolder>
I need some help again.
I have a GridView with CheckBoxes in first column. If a user checks multiple CheckBoxes and clicks a button I need to display selected rows in edit mode. How do I do that? Any tips?
Some sample code, how I imagine it.
Here is my Gridview MyGV:
<asp:GridView ID="MyGV" runat="server" AutoGenerateColumns="False" DataKeyNames="ID">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="ChkBox" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="ID" HeaderText="ID" />
<asp:TemplateField HeaderText="Column1">
<EditItemTemplate>
<asp:TextBox ID="tbColumn1" runat="server" Text='<%# Bind("column1") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="labColumn1" runat="server" Text='<%# Bind("column1") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Column2">
<EditItemTemplate>
<asp:TextBox ID="tbColumn2" runat="server" Text='<%# Bind("column2") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="labColumn2" runat="server" Text='<%# Bind("column2") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:Button ID="btnEdit" runat="server" Text="EDIT" OnClick="btnEdit_Click" />
In code behind I bind that GridView to display data from SQL table (no problem there). Now I need it to enter selected rows into edit mode (ONLY selected rows) when I click the EDIT button.
protected void btnEdit_Click(object sender, EventArgs e)
{
foreach (GridViewRow row in MyGV.Rows)
{
CheckBox checkbox = (CheckBox)row.FindControl("ChkBox");
if (checkbox.Checked)
{
// ENTER EDIT MODE - Help needed here!! :)
}
}
BindGridView();
}
In a GridView only one row can be in true edit mode at the same time. See question below for a possible workaround:
Put multiple rows of a gridview into edit mode
me problem is next:
I have a DetailsView control with many editItemTemplates some work fine but i have one dont work's.
code here:
<asp:TemplateField HeaderText="Date" SortExpression="date">
<ItemTemplate>
<%#this.putDate(Eval("fecha")) %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="date" runat="server" ></asp:TextBox>
<asp:CalendarExtender id="CE" runat="server" Format="dd/MM/yyyy"
PopupButtonID="calImg" TargetControlID="date">
</asp:CalendarExtender>
<asp:ImageButton id="calImg" runat="server" CommandName=""
ImageUrl="img/imgCal.gif" />
</EditItemTemplate>
</asp:TemplateField>
In view mode the information appear right but in edit mode after select new date with calendar and pres accept to update information, the data dont update. Any idea?
Thz!
Replace:
<asp:TextBox ID="date" runat="server" ></asp:TextBox>
With:
<asp:TextBox ID="date" runat="server" Text='<%# Bind("SelectedDate") %>'></asp:TextBox>