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Friday, 23 January 2015

Dynamicelly Change Header Text Of GridView On Button Click In Asp.Net Using C#.Net

1/23/2015 - By Pranav Singh 0

This article will show you how you can dynamically change header text of gridview on button click in asp.net using c#.net. In this BoundField Gridview Field header text we will change on button click.


So for this article first we will create a new asp.net application and add the below code in the page.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>

<!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>Dynamicelly Change Header Text Of GridView On Button Click In Asp.Net Using C#.Net
    </title>
</head>
<body>
    <form id="form1" runat="server">
    <table width="100%" cellpadding="4" cellspacing="4">
        <tr>
            <td align="left">
                <asp:GridView ID="GridView1" runat="server" Width="100%" AutoGenerateColumns="False">
                    <Columns>
                        <asp:BoundField DataField="Name" HeaderText="Name" />
                        <asp:BoundField DataField="Address" HeaderText="Address" />
                        <asp:BoundField DataField="UserType" HeaderText="UserType" />
                    </Columns>
                </asp:GridView>
            </td>
        </tr>
    </table>
    <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Rename Header Text" />
    </form>
</body>
</html>

In above code I have use BoundField for bind the user detail.

Now check the code to bind and change the header text on button click.

using System;
using System.Data.SqlClient;
using System.Data;
using System.Web.UI.WebControls;
namespace WebApplication1
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindGridView();
            }
        }
        private void BindGridView()
        {
            SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.
ConnectionStrings["con"].ToString());
            try
            {
                DataTable objdt = new DataTable();
                string query = "select * from UserDetail;";
                SqlDataAdapter da = new SqlDataAdapter(query, con);
                con.Open();
                da.Fill(objdt);
                con.Close();
                if (objdt.Rows.Count > 0)
                {
                    GridView1.DataSource = objdt;
                    GridView1.DataBind();
                }
            }
            catch
            {
                con.Close();
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            GridView1.HeaderRow.Cells[0].Text = "Student Name";
        }
    }
}

On above code I have used a function to bind the data. Now I have I have added  the GridView1.HeaderRow.Cells[0].Text = "Student Name"; to change the header text.
Now we have done run the application to check the output.


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