Here in this Example you can learn how to get the values of selected row from a Grid view and display the values in textboxes using C# code. We can edit, update, cancel, select, and delete data also.
Default.aspx 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>
<style type="text/css">
.style1
{
width: 112%;
}
.style2
{
width: 169px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div style="background-color: #FF9900; width: 356px;">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataKeyNames="id" Height="264px" onrowediting="GridView1_RowEditing"
onrowupdating="GridView1_RowUpdating"
onselectedindexchanged="GridView1_SelectedIndexChanged" Width="379px"
BackColor="#66CCFF" BorderColor="#FF0066"
onrowcancelingedit="GridView1_RowCancelingEdit"
onrowdeleting="GridView1_RowDeleting">
<Columns>
<asp:BoundField DataField="id" HeaderText="Id" />
<asp:BoundField DataField="name" HeaderText="Name" />
<asp:BoundField DataField="address" HeaderText="Address" />
<asp:BoundField DataField="salary" HeaderText="Salary" />
<asp:CommandField ShowEditButton="True" />
<asp:CommandField ShowSelectButton="True" />
<asp:CommandField ShowDeleteButton="True" />
</Columns>
<SelectedRowStyle BackColor="#FF66FF" />
</asp:GridView>
<table class="style1" style="background-color: #CCFF99; height: 268px;">
<tr>
<td class="style2">
ID</td>
<td>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="style2">
Name</td>
<td>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="style2">
Address</td>
<td>
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="style2">
Salary</td>
<td>
<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
</td>
</tr>
</table>
<br />
<br />
</div>
</form>
</body>
</html>
Default.aspx.cs 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
{
string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
SqlCommand cmd = new SqlCommand();
SqlConnection con;
SqlDataAdapter sqlda;
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
binddata();
}
}
public void binddata()
{
SqlConnection con = new SqlConnection(connStr);
con.Open();
sqlda = new SqlDataAdapter("select * from employee", con);
DataSet ds = new DataSet();
sqlda.Fill(ds);
GridView1.DataSource = ds;
GridView1.DataBind();
}
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
TextBox1.Text = GridView1.SelectedRow.Cells[0].Text;
TextBox2.Text = GridView1.SelectedRow.Cells[1].Text;
TextBox3.Text = GridView1.SelectedRow.Cells[2].Text;
TextBox4.Text = GridView1.SelectedRow.Cells[3].Text;
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
string s = GridView1.DataKeys[e.RowIndex].Value.ToString();
string name = ((TextBox)GridView1.Rows[e.RowIndex].Cells[1].Controls[0]).Text;
string address = ((TextBox)GridView1.Rows[e.RowIndex].Cells[2].Controls[0]).Text;
string sal = ((TextBox)GridView1.Rows[e.RowIndex].Cells[3].Controls[0]).Text;
con = new SqlConnection(connStr);
con.Open();
cmd = new SqlCommand("Update employee set name='" + name + "',address='" + address + "',salary='" + sal + "' where id='" + s + "'", con);
cmd.ExecuteNonQuery();
con.Close();
GridView1.EditIndex = -1;
binddata();
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
binddata();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
binddata();
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
SqlConnection con = new SqlConnection(connStr);
cmd.Connection = con;
cmd.CommandText = "DELETE FROM employee WHERE id='" + GridView1.DataKeys[e.RowIndex].Values[0].ToString() + "'";
con.Open();
cmd.ExecuteNonQuery();
con.Close();
binddata();
}
}
Output
![GridView.gif]()