CODEWITHSUNDEEP
asp.net
MusicLovingIndianGirl
MusicLovingIndianGirl

Reputation: 5947

ASP.NET Gridview button onclick not firing

Hi all I have a simpe ASP button inside a grid. But the onclick event doesn't seem to fire. Where did I go wrong?

Here's the first line of my aspx page.

<%@ Page Title="Trainer Data" Language="vb" AutoEventWireup="false" MasterPageFile="~/Site.Master" CodeFile="TrainerData.aspx.vb" Inherits="TrainerData"%>

And the button inside my gridview..

<asp:GridView ID ="gvExecSummary" runat="server" CssClass="gridview" AllowSorting="false" AllowPaging="false" AutoGenerateColumns="false" Width="98%" >
<RowStyle Height="22px" />
<AlternatingRowStyle Height="22px" CssClass="bg" BackColor="LightGray"/>
<HeaderStyle Height="22px" BackColor="#4b6c9e" Font-Bold="true"/>
<Columns>
<asp:TemplateField  HeaderStyle-HorizontalAlign="Left" HeaderStyle-Width="5%" HeaderText="Action">
<ItemTemplate>
<asp:Button ID="btnExecutiveGenerate" runat="server" Text="Generate"     OnClientClick="btnExecutiveGenerate_Click" />
</ItemTemplate>
</asp:TemplateField>

P.S. I tried even onclick but it doesn't work either.

EDIT: My code for server side.

Protected Sub btnExecutiveGenerate_Click(sender As Object, e As EventArgs)
    Dim gvrow As GridViewRow = CType(CType(sender, Control).Parent.Parent, GridViewRow)
    Dim lblSchoolId As System.Web.UI.WebControls.Label = gvrow.FindControl("lblSchoolMasterID")
    Dim lblFacultyId As System.Web.UI.WebControls.Label = gvrow.FindControl("lblFacultyMasterID")
    Dim btnExecutiveGenerate As System.Web.UI.WebControls.Button = gvrow.FindControl("btnExecutiveGenerate")

    PDF_Creation_Executive(Val(lblSchoolId.Text), Val(lblFacultyId.Text))

End Sub

Upvotes: 2

Views: 15438

Answers (4)

gaijintendo
gaijintendo

Reputation: 423

This may help someone, but I was experiencing edit buttons not firing the event within rows (and not footer). The cause was a gridview containing a label, which had the same ID as one elsewhere on the page. Seemingly this did not cause problems for the footer row, which did not contain any such labels. I hope this helps someone.

Upvotes: 0

Damith
Damith

Reputation: 63065

change OnClientClick event to OnClick if btnExecutiveGenerate_Click is vb.net event handler 

<asp:Button ID="btnExecutiveGenerate" runat="server" Text="Generate"    
 OnClick="btnExecutiveGenerate_Click"/>

OnClientClick event use to execute client-side script, if you have given OnClientClick event with OnClick event, then if OnClientClick return true only it will call OnClick event.

so make sure you are returning true or false from OnClientClick event if you using it.

note that if you are loading data in page laod, do as below 

Sub Page_Load
    If Not IsPostBack
        LoadGridViewData()
    End If
End Sub

Upvotes: 0

Manish Sharma
Manish Sharma

Reputation: 2426

Use Command Argumnet,

<asp:TemplateField>
<ItemTemplate>
  <asp:Button ID="AddButton" runat="server" 
  CommandName="AddToCart" 
  CommandArgument="<%# CType(Container,GridViewRow).RowIndex %>"
  Text="Add to Cart" />
   </ItemTemplate> 
</asp:TemplateField>

add code page side

Protected Sub GridView1_RowCommand(ByVal sender As Object, _ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs)
 If (e.CommandName = "AddToCart") Then
  ' Retrieve the row index stored in the CommandArgument property.
  Dim index As Integer = Convert.ToInt32(e.CommandArgument)

  ' Retrieve the row that contains the button 
  ' from the Rows collection.
  Dim row As GridViewRow = GridView1.Rows(index)

  ' Add code here to add the item to the shopping cart.

 End If
End Sub

Upvotes: 3

Prash
Prash

Reputation: 1122

You need to handle the button click event of Gridview in RowCommand event

NOTE: Please see the CommandName & CommandArgument properties added to the button.

<asp:GridView ID ="gvExecSummary" runat="server" CssClass="gridview" AllowSorting="false" AllowPaging="false" AutoGenerateColumns="false" Width="98%" >
<RowStyle Height="22px" OnRowCommand="gvExecSummary_RowCommand"  />
<AlternatingRowStyle Height="22px" CssClass="bg" BackColor="LightGray"/>
<HeaderStyle Height="22px" BackColor="#4b6c9e" Font-Bold="true"/>
<Columns>
<asp:TemplateField  HeaderStyle-HorizontalAlign="Left" HeaderStyle-Width="5%" HeaderText="Action">
<ItemTemplate>
<asp:Button ID="btnExecutiveGenerate" runat="server" Text="Generate"   CommandName="GenerateExecutive" CommandArgument="<%#((GridViewRow)Container).RowIndex %>"  />
</ItemTemplate>
</asp:TemplateField>

And and RowCommand event will be..

protected void gvExecSummary_RowCommand(object sender, GridViewCommandEventArgs e) 
{ 
      if (e.CommandName == "GenerateExecutive") 
      {
          // button click code goes here
      }
}

Upvotes: 1

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