In this blog we will know onmouseover on gridview header back color of header will change.


<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Gridview_header_mousehover._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">

.highlighted1

{

background-color:red;

}

.highlighted2

{

background-color:yellow;

}

</style>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:GridView ID="GridView1" runat="server" BackColor="Yellow"

GridLines="Vertical" AutoGenerateColumns="false"

onrowcreated="GridView1_RowCreated" >

<Columns>

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

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

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

</Columns>

</asp:GridView>

</div>

</form>

</body>

</html>

using System;

using System.Collections;

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;

namespace Gridview_header_mousehover

{

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

{

string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;

SqlCommand com;

SqlDataAdapter sqlda;

DataSet ds;

string str;

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

bindgrid();

}

}

private void bindgrid()

{

SqlConnection con = new SqlConnection(connStr);

con.Open();

str = "select * from employee";

com = new SqlCommand(str, con);

sqlda = new SqlDataAdapter(com);

ds = new DataSet();

sqlda.Fill(ds, "employee");

GridView1.DataMember = "employee";

GridView1.DataSource = ds;

GridView1.DataBind();

con.Close();

}

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)

{

if (e.Row.RowType == DataControlRowType.Header)

{

e.Row.Attributes.Add("onmouseover", "className='highlighted1'");

e.Row.Attributes.Add("onmouseout", "className='highlighted2'");

}

}

}

}