I have a gridview with some textboxes and buttons inside the gridview. I want to use updatepanels when the buttons are clicked so that only one textbox is refreshed instead of the whole page. I tried to add my ScriptManager and UpdatePanel inside my gridview but I get errors saying the tags aren't recognized.
I've looked elsewhere on SO for solutions and others have said to place the whole gridview in an UpdatePanel. However, I don't want the whole grid to be updated (it's pretty lengthy). Is it possible to have individual UpdatePanels in my gridview?
EDIT:
Here is some code to go along with my question:
<asp:UpdatePanel ID="UpdatePanel" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="PCalendar" EventName="SelectedChange" />
</Triggers>
<ContentTemplate>
<asp:GridView ID="GridView1" runat="server">
<Columns>
<asp:TemplateField HeaderText="QS">
<ItemTemplate>
<asp:TextBox ID="TextBox" runat="server" Text=' <%#Bind("PDate") %>' OnTextChanged="SetTextBox" AutoPostBack="True"></asp:TextBox>
<asp:ImageButton ID="PButton" runat="server" OnClick="ShowCalendar" ImageUrl="../images/calendarIcon.jpg" />
<asp:Calendar ID="PCalendar" runat="server" Visible="false" OnSelectionChanged="SetDate" ></asp:Calendar>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
Here is what it's going to sorta look like. Once you post your code, it will be easier to see how close you are and how to help you properly. But this is the general idea.
<asp:UpdatePanel ID="UpdatePanel" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="buttonOneID" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="buttonTwoID" EventName="Click" />
</Triggers>
<ContentTemplate>
<asp:GridView ID="GridView1" runat="server">
<Columns>
//columns code here
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
Related
I have placed my GridView inside the Updatepanel and there I have defined few columns with one LinkButton. But for that LinkButton OnClientClick event is not firing. Instead it's doing a postback.
Following is the Code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:GridView ID="gvUnmappedICD" runat="server" EmptyDataText="No Records are added yet."
OnRowCommand="gvUnmappedICD_RowCommand" OnRowDataBound="gvUnmappedICD_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Action">
<ItemTemplate>
<asp:LinkButton ID="lnkRemove" runat="server" CommandArgument='<%#Eval("KEYWORD") %>' CommandName="remove" ClientIDMode="AutoID"
OnDataBinding="lnkRemove_DataBinding" OnClientClick='return confirm("Are you sure you want to Delete this?");' ToolTip="Click to Remove this record." Text="Remove" />
</ItemTemplate>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
This LinkButton with the ID lnkRemove should display a confirm message box when user clicks on it. But it's not showing it.I have tried registering the Asynchronous PostBack event to this from code behind as follows:
ScriptManager.GetCurrent(this).RegisterAsyncPostBackControl(lbRemove);
Kindly anyone help me to resolve this.
Use a PostBackTrigger
<asp:ScriptManager ID="scriptManager" runat="server">
<asp:UpdatePanel ID="updatePanel" runat="server">
<asp:GridView ID="gvUnmappedICD" runat="server" EmptyDataText="No Records are added yet."
OnRowCommand="gvUnmappedICD_RowCommand" OnRowDataBound="gvUnmappedICD_RowDataBound">
<Columns>
<asp:TemplateField HeaderText="Action">
<ItemTemplate>
<asp:LinkButton ID="lnkRemove" runat="server" CommandArgument='<%#Eval("KEYWORD") %>' CommandName="remove" ClientIDMode="AutoID"
OnDataBinding="lnkRemove_DataBinding" OnClientClick='return confirm("Are you sure you want to Delete this?");' ToolTip="Click to Remove this record." Text="Remove" />
</ItemTemplate>
</Columns>
</asp:GridView>
<Triggers>
<asp:PostBackTrigger ControlID="lnkRemove" />
</Triggers>
</asp:UpdatePanel>
Please use this on link button's OnClientClick
OnClientClick='return confirm("Are you sure you want to Delete this?");return false;'
Here is my aspx:
<asp:Panel ID="pnl_updateClinicVisit" runat="server" CssClass="modalPopupClinicVisitEntry2" DefaultButton="bt_editClinicVisit_submit" Style="display:none">
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button AutoPostBack="false" UseSubmitBehavior="false" ID="AddMedicationChange" ClientIdMode="Static" runat="server" Text="Add Med Change" OnClick="AddMedicationChange_Click" />
<asp:Panel ID="AddNewMedicationPanel" runat="server">
<asp:TextBox ID="NewDrugName" OnTextChanged="NewDrugName_TextChanged" runat="server"></asp:TextBox>
<asp:AutoCompleteExtender ID="NewDrugNameAutoCompleteExtender"
runat="server"
TargetControlID="NewDrugName"
MinimumPrefixLength="1"
EnableCaching="false"
CompletionSetCount="1"
CompletionInterval="500"
ServiceMethod="GetDrugs">
</asp:AutoCompleteExtender>
<asp:DropDownList OnSelectedIndexChanged="NewDrugChange_SelectedIndexChanged" ID="NewDrugChange" runat="server">
<asp:ListItem>Drug +</asp:ListItem>
<asp:ListItem>Drug -</asp:ListItem>
<asp:ListItem>Dose ↑</asp:ListItem>
<asp:ListItem>Dose ↓</asp:ListItem>
</asp:DropDownList>
<asp:Button AutoPostBack="false" UseSubmitBehavior="false" ID="SubmitMedChange" runat="server" Text="Add to Visit" OnClick="SubmitMedicationChange_Click" />
</asp:Panel>
<asp:ModalPopupExtender ID="updateClinicModalPopupExtender" runat="server" TargetControlID="bt_editClinicVisit_dummy"
PopupControlID="pnl_updateClinicVisit" CancelControlID="bt_editClinicVisit_cancel"
DropShadow="true" BackgroundCssClass="modalBackground" />
</ContentTemplate>
</asp:UpdatePanel>
</asp:Panel>
For some reason my page is reloading when I click the "AddnewMdication" and "SubmitMedChange" buttons. When I have the AutoPostBack=false UseSubmitBehavior=false, the events fire and then the page reloads. If I don't have these attributes then the page reloads before the events even fire. How do I get AJAX functionality within this modal?
Try setting your Buttons as an AsyncPostBackTrigger. You can do this by adding in the Triggers section and declaring the UpdatePanel as a conditional update.
For example
<asp:UpdatePanel ID="UpdatePanel1" runat="server"
UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="AddMedicationChange" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="SubmitMedChange" EventName="Click" />
</Triggers>
<ContentTemplate>
<%-- Your code here --%>
</ContentTemplate>
</asp:UpdatePanel>
What this should do is to explicitly declare that those two buttons as being Async.
If this doesn't work, will you please post the relevant code to your two button OnClick events? AddMedicationChange_Click and SubmitMedicationChange_Click
If you try to interact with controls outside of the UpdatePanel in your code-behind during an asyncpostback, odd things can start to happen.
I have two nested Gridviews, the parent is for Posts and child is for Comments. I want to update Post and Comments with a Time Interval so Im using an asp.net Timer. My problem is that a TextBox that is in the first Gridview loses focus when timer Ticks. I searched the web a lot, one possible solution was to take the textbox out of the UpdatePanel but in this situation I can't take out the textBox. Please help me, here is my code.
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:Timer ID="Timer1" Interval="10000" OnTick="Timer1_Tick" runat="server">
</asp:Timer>
<asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
<ContentTemplate>
<%--post GridView--%>
<asp:GridView ID="posts" runat="server">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<%--Comments Gridview--%>
<asp:GridView ID="comments" runat="server"></asp:GridView>
<%--a Textbox and bUtton For sending new Comment--%>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
protected void Timer1_Tick(object sender, EventArgs e)
{
posts.DataSource = GetData();
posts.DataBind();
}
I was going to type a similar answer to this, but it appears it has already been explained here - https://stackoverflow.com/a/22014420/2248290
The key point being: "An update panel takes focus away as it posts back"
i have a page which is inside update panel.it contains two gridview which are also inside update panels.i m binding them in page load inside !ispostback as well as other parts of code.when i bind only first grid it works fine but when i bind the second grid it refreshes the first one and it shows no data.is this the problem of improper usage of update panel usage or any other issue.. how can i use the triggers here.
my code is as follows..
<asp:UpdatePanel ID="updgrd1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:GridView ID="GridView1" runat="server" Width="85%"ShowHeaderWhenEmpty="true"EmptyDataText="No Records Found" AutoGenerateColumns="false"OnRowCancelingEdit="GridView1_RowCancelingEdit"OnRowEditing="G dView1_RowEditing">
<Columns>
//my code here
</Columns>
</asp:GridView>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnUpdate" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
<asp:UpdatePanel ID="updgrd2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:GridView ID="GridView2" runat="server" Width="85%" ShowHeaderWhenEmpty="true" AutoGenerateColumns="false" EmptyDataText="No Records Found">
<Columns>
//my code here
</Columns>
</asp:GridView>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnUpdate" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="btnSave" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
protected void Page_Load(object sender, EventArgs e)
{
if(!ispostback)
{
LoadGrid1();
LoadGrid2();
}
}
Here I'm doing exactly what you are. Here I have a textbox and a gridview, when clicking add whatever is in the textbox gets added to the gridview.
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger controlid="LnkAddTrack" eventname="Click" />
</Triggers>
<ContentTemplate>
<div id="EventTrack" >
<asp:Label ID="lblEventTracks" runat="server" Text="Event Tracks"></asp:Label>
<asp:TextBox ID="txtEventTracks" CssClass="EventTextbox" runat="server"></asp:TextBox>
<asp:LinkButton ID="LnkAddTrack" ClientIDMode="Static" runat="server" OnClick="LnkAddTrack_Click">Add Track</asp:LinkButton>
</div>
<asp:GridView ID="dgTracks" runat="server" >
<Columns>
<asp:TemplateField HeaderText="TrackName">
<ItemTemplate>
<asp:Label ID="Control" runat="server" Text='<%# Eval("TrackName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
Then make sure you on your button event to add new data you are adding the data correctly
and remember to rebind the gridview.
protected void LnkAddTrack_Click(object sender, EventArgs e)
{
InsertTrack();
DgPopTracks();
}
Ask any questions you may have, if you want to see my Insert Track and DgPopTracks events
i can post them as well for you
I'm using a Gridview that is using datasource & databinding. When i reload the page the gridview is updated but I want it to be on the buttonclick, but it's not working for me.
The gridview inside the updatepanel:
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="upWall" runat="server" ChildrenAsTriggers="true" UpdateMode="conditional">
<ContentTemplate>
<asp:GridView ID="gvWallPosts" runat="server" AutoGenerateColumns = "false"
CaptionAlign="NotSet" CellPadding="5">
<Columns>
<asp:TemplateField HeaderText="Avsändare">
<ItemTemplate>
<%# GetSender((int)Eval("WallSender"))%>
<br />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Inlägg">
<ItemTemplate>
<%# Eval("Post")%>
<br />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
<asp:TextBox ID="txtWall" runat="server" Height="105px" TextMode="MultiLine" Width="227px"></asp:TextBox>
<br />
<asp:Button ID="btnWall" runat="server" Text="Posta" onclick="btnWall_Click" />
Code-behind:
protected void btnWall_Click(object sender, EventArgs e)
{
con.SendWallPost(con.GetId(Membership.GetUser().UserName), Convert.ToInt32(Request.QueryString["ID"]), txtWall.Text); //This method is sending the post
upWall.Update();
}
So, I want the updatepanel to be updated on the ButtonClick, I don't want to reload the whole page to see the result
Since i don't see the button btnWall, i assume that it's outside of the UpdatePanel.
But you need to define an explicit trigger if you want to allow a control outside of an UpdatePanel to trigger a postback.
Therefore you can use an AsyncPostBackTrigger:
<asp:UpdatePanel ID="upWall" runat="server" ChildrenAsTriggers="true" UpdateMode="conditional">
<ContentTemplate>
....
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnWall" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
By default, partial-page updates are enabled in an update panel because the default value of the EnablePartialRendering property of the ScriptManager control is true.Putting the button in the update panel is suffice to give you what you need since the button acts as an asynchronus postback control inside the panel.Then just add this line( gvWallospts.Databind()) after your update.Let me know how it goes.
protected void btnWall_Click(object sender, EventArgs e)
{
con.SendWallPost(con.GetId(Membership.GetUser().UserName), Convert.ToInt32(Request.QueryString["ID"]), txtWall.Text); //This method is sending the post
//upWall.Update();
gvWallPosts.DataBind();
}
Try setting up you markup like this
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="upWall" runat="server" ChildrenAsTriggers="true" UpdateMode="conditional">
<ContentTemplate>
<asp:GridView ID="gvWallPosts" runat="server" AutoGenerateColumns = "false"
CaptionAlign="NotSet" CellPadding="5">
<Columns>
<asp:Templatefield>
<asp:Button ID="btnWall" runat="server" Text="Posta" command="Edit" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Avsändare">
<ItemTemplate>
<%# GetSender((int)Eval("WallSender"))%>
<br />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox Text='<%# Bind("WallSender")%>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Inlägg">
<ItemTemplate>
<%# Eval("Post")%>
<br />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox Text='<%# Bind("Post")%>'/>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
In your grid Row updating event
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
con.SendWallPost(con.GetId(Membership.GetUser().UserName), Convert.ToInt32(Request.QueryString["ID"]), txtWall.Text);
gvWallPosts.DataBind();
}
Make sure that also you Binding code in page load is sandwiched by this
If(!IsPostBack)
{
}
You should either put the button inside the update panel or define an explicit trigger to update the update panel on button click event as suggested by Tim Schmelter.