Jitesh Byahut 2/25/2014 10916

Selected Index Changing Event In GridView In Asp.Net

Here we are binding a GridView in Asp.Net and C#.

Points Of Remember:

1. Fire GridView's SelectedIndexChanging event.

2. Add namespace System.Data and System.Data.SqlClient in your C# page.

<!DOCTYPE html>


<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title>Selected Index Changing event in GridView in Asp.Net</title>



  <form id="form1" runat="server">


      <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false"

       OnSelectedIndexChanging="GridView1_SelectedIndexChanging" AutoGenerateSelectButton="True">


                <asp:BoundField DataField="Name" HeaderText="Name" />

                <asp:BoundField DataField="Branch" HeaderText="Branch" />

                <asp:BoundField DataField="City" HeaderText="City" />





     <tr><td>Name</td><td><asp:TextBox ID="txt_name" runat="server"></asp:TextBox></td></tr>

     <tr><td>Branch</td><td><asp:TextBox ID="txt_branch" runat="server"></asp:TextBox></td></tr>

     <tr><td>City</td><td><asp:TextBox ID="txt_city" runat="server"></asp:TextBox></td></tr>







C# Codes :

using System.Data;

using System.Data.SqlClient;


public partial class GridView : System.Web.UI.Page


    protected void Page_Load(object sender, EventArgs e)


        if (!IsPostBack)





    //method for binding GridView

    protected void BindGridView()


        DataTable dt = new DataTable();

        SqlConnection con = new SqlConnection(@"Data Source=JITESH-PC\SQL;Initial

                   Catalog=db_Student;Integrated Security=True");

        SqlDataAdapter da = new SqlDataAdapter("Select name,branch,city from tbl_student", con);





        if (dt.Rows.Count > 0)


            GridView1.DataSource = dt;





    protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)


        txt_name.Text = GridView1.Rows[e.NewSelectedIndex].Cells[1].Text;

        txt_branch.Text = GridView1.Rows[e.NewSelectedIndex].Cells[2].Text;

        txt_city.Text = GridView1.Rows[e.NewSelectedIndex].Cells[3].Text;




View output :


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