Confirmation message on button click in GridView?

Just Drag and drop Grid view control to your web page.
In Aspx.cs Page:-
[code]
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
DataTable dt = new DataTable();
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
LoadGrid();
}
}
private void LoadGrid()
{
SqlConnection conn = null;
string connString = "server=servername;database=databasename;uid=userid;password=password;";
conn = new SqlConnection(connString);
string query = "select * from TableName";
SqlCommand cmd = new SqlCommand(query, conn);
conn.Open();
SqlDataReader dr = cmd.ExecuteReader(CommandBehavior.CloseConnection);

dt.Load(dr);
conn.Close();
GridView1.DataSource = dt;
GridView1.DataBind();

}


protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
DataRowView vDataRowView = (DataRowView)e.Row.DataItem;
if (e.Row.RowType == DataControlRowType.DataRow)
{
Button vBtnDelete = (Button)e.Row.FindControl("BtnDelete");
vBtnDelete.Attributes.Add("onclick", "return GridDelete()");

}


}
protected void BtnDelete_Click(object sender, EventArgs e)
{
Response.Write("Put your delete code here");


}
}

[/code]

In Aspx Page:-

[code]
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<script type="text/javascript">
function GridDelete()
{
if (confirm("Are you sure to delete this record permanently?") == true)
{
return true;
}
else
{
return false;
}
}
</script>
<body>
<form id="form1" runat="server">
<asp:GridView ID="GridView1" runat="server"
onrowdatabound="GridView1_RowDataBound">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="BtnDelete" runat="server" Text="Delete"
onclick="BtnDelete_Click" />
</ItemTemplate>
</asp:TemplateField>

</Columns>
</asp:GridView>
</form>
</body>
</html>


[/code]

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