Step 1:- Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Demo.Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Sorting
in Gridview</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None" OnSorting="GridView1_Sorting" AllowSorting="True" AutoGenerateColumns="False">
<AlternatingRowStyle BackColor="White" />
<EditRowStyle BackColor="#7C6F57" />
<FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#E3EAEB" />
<SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#F8FAFA" />
<SortedAscendingHeaderStyle BackColor="#246B61" />
<SortedDescendingCellStyle BackColor="#D4DFE1" />
<SortedDescendingHeaderStyle BackColor="#15524A" />
<Columns>
<asp:BoundField DataField="RowNumber" HeaderText="RowNumber" SortExpression="RowNumber" />
<asp:BoundField DataField="Column1" HeaderText="Column1" SortExpression="Column1" />
<asp:BoundField DataField="Column2" HeaderText="Column2" SortExpression="Column2" />
<asp:BoundField DataField="Column3" HeaderText="Column3" SortExpression="Column3" />
</Columns>
</asp:GridView>
</div>
<div>
<asp:Button ID="btnDownload" runat="server" Text="Download" OnClick="btnDownload_Click" />
</div>
</form>
</body>
</html>
Step 2:- Default.aspx.cs
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Demo
{
public partial class Default :
System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
GridView1.DataSource
= BindData();
GridView1.DataBind();
}
}
protected DataTable BindData()
{
DataTable dt
= new DataTable();
DataRow dr
= null;
dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
dt.Columns.Add(new DataColumn("Column1", typeof(string)));
dt.Columns.Add(new DataColumn("Column2", typeof(string)));
dt.Columns.Add(new DataColumn("Column3", typeof(string)));
int totalRow
= 9;
for (int i
= 0; i < totalRow; i++)
{
dr
= dt.NewRow();
dr["RowNumber"] = i
+ 1;
dr["Column1"] = "Row" +
i;
dr["Column2"] = "Row" +
i;
dr["Column3"] = "Row" +
i;
dt.Rows.Add(dr);
}
return dt;
}
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
string sortDir
= string.Empty;
if (sortDirection.Equals(SortDirection.Ascending))
{
sortDirection
= SortDirection.Descending;
sortDir
= "Desc";
}
else
{
sortDirection
= SortDirection.Ascending;
sortDir
= "Asc";
}
DataView dataView
= new DataView(BindData());
dataView.Sort
= e.SortExpression + " " + sortDir;
GridView1.DataSource
= dataView;
GridView1.DataBind();
}
protected SortDirection sortDirection
{
get
{
if (ViewState["dirState"] == null)
{
ViewState["dirState"] = SortDirection.Ascending;
}
return (SortDirection)ViewState["dirState"];
}
set
{
ViewState["dirState"] = value;
}
}
}
}
Note:-
To sort the record click on gridview header.
