Image Button OnClick Event Not firing - asp.net

Question

Here Is the Code, when i try to fire the event in Browser it is not fired
<asp:Panel ID="StateDistrictGrid_pnl" runat="server">
<asp:GridView ID="User_grd" runat="server" DataKeyNames="VoterID" AutoGenerateColumns="False" AllowPaging="True">
<Columns>
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<asp:ImageButton ID="Img_btn" ImageUrl="~/Images/52105-200.png" OnClick="Img_btn_Click" Height="20px" Width="30px" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="ID" Visible="false" />
<asp:BoundField DataField="VoterName" HeaderText="Voter Name" SortExpression="VoterName" />
<asp:BoundField DataField="StateName" HeaderText="State Name" SortExpression="StateName" />
<asp:BoundField DataField="DistrictName" HeaderText="District Name" SortExpression="DistrictName" />
</Columns>
</asp:GridView>
<asp:Label ID="Lbl_Result" runat="server">
<asp:Button ID="BtnShowPopup" runat="server" Text="Edit" />
<asp:ModalPopupExtender ID="Show_mpe" runat="server" TargetControlID="BtnShowPopup" PopupControlID="PopUp_Pnl" CancelControlID="Btn_Cancel" BackgroundCssClass="textbox_radius"></asp:ModalPopupExtender>
<asp:Panel ID="PopUp_Pnl" runat="server" style = "display:none">
<asp:Label Font-Bold = "true" ID = "Details_lbl" runat = "server" Text = "Voter Details" ></asp:Label>
<br />
<table align = "center">
<tr>
<td>
<asp:Label ID = "ID_lbl" runat = "server" Text = "Voter ID" ></asp:Label>
</td>
<td>
<asp:TextBox ID="VoterID_txt" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID = "Voter_lbl" runat = "server" Text = "Voter Name" ></asp:Label>
</td>
<td>
<asp:TextBox ID="VoterName_txt" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID = "Statepnl_lbl" runat = "server" Text = "State Name" ></asp:Label>
</td>
<td>
<asp:TextBox ID="State_txt" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID = "Districtpnl_lbl" runat = "server" Text = "District Name" ></asp:Label>
</td>
<td>
<asp:TextBox ID="District_txt" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnSave" runat="server" Text="Save" />
</td>
<td>
<asp:Button ID="Btn_Cancel" runat="server" Text="Cancel" />
</td>
</tr>
</table>
</asp:Panel>
</asp:Label>
</asp:Panel>
and the backend code is like this:
is thier any problem in In my Code please help thank you
protected void Img_btn_Click(object sender, ImageClickEventArgs e)
{
ImageButton Bt = sender as ImageButton;
GridViewRow GVRow = (GridViewRow)Bt.NamingContainer;
ID_lbl.Text = User_grd.DataKeys[GVRow.RowIndex].Value.ToString();
VoterName_txt.Text = GVRow.Cells[2].Text;
State_txt.Text = GVRow.Cells[3].Text;
District_txt.Text = GVRow.Cells[4].Text;
}
but when i run it the event is not Fired..What's the Problem?

Answer 1

Your issue is somehow the same that I encountered few months back. This might help you some way or another. try using LinkButton instead of Button...
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:gridview runat="server" id="GridView1" showfooter="true"
autogeneratecolumns="false" GridLines="None" CssClass="table1"
OnRowCreated="GridView1_RowCreated" BorderColor="#356600"
BorderStyle="Solid" >
<columns>
<asp:TemplateField HeaderText="Date" >
<ItemTemplate>
<asp:LinkButton ID="Date" runat="server"
CausesValidation="false" CommandName="Date_Select"
Text='<%#Eval("Date","{0:yyyy-MM-dd}") %>' onclick="Date_Click"
EnableTheming="False"></asp:LinkButton>
</ItemTemplate>
<EditItemTemplate>
</EditItemTemplate>
</asp:TemplateField>
<asp:boundfield datafield="Profit" headertext="Profit"
footerstyle-font-bold="true">
<FooterStyle Font-Bold="True"></FooterStyle>
</asp:boundfield>
</columns>
<HeaderStyle BackColor="#CEFF99" ForeColor="Black" BorderColor="#C1FF80"
BorderStyle="Solid" BorderWidth="1px"></HeaderStyle>
<RowStyle CssClass="td"></RowStyle>
</asp:gridview>
</ContentTemplate>
</asp:UpdatePanel>
protected void Date_Click(object sender, EventArgs e)
{
LinkButton Lnk = (LinkButton)sender;
Label1.Text = Lnk.Text; // This one works for me....
OdbcConnection con1 =
new OdbcConnection(ConfigurationManager
.ConnectionStrings["connect1"]
.ConnectionString);
OdbcCommand cmd = new OdbcCommand("select a.customer As Customer,a.mins as MIns,a.amount as Amount,a.profit as Profit from summarydatashort a,clientsrecord b where a.orig_clli=b.orig_clli and a.date='" + Label1.Text + "' and b.emplye='Ankit'", con1);
con1.Open();
OdbcDataAdapter da = new OdbcDataAdapter(cmd);
da.Fill(ds);
con1.Close();
GridView17.DataSource = ds;
GridView17.DataBind();
}