"File" - "New WebSite" - "Empty WebSite"
Then right-click on the Solution Explorer and select "Add New Item" - "Default.aspx" page.
Then add one button, one label and a GridView to the page.
Create a table in sql server :-
Default.aspx:-
<%@ 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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
BackColor="White" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px"
CellPadding="4">
<Columns>
<asp:TemplateField HeaderText="ID">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# bind("ID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# bind("Name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="City">
<ItemTemplate>
<asp:Label ID="Label3" runat="server" Text='<%# bind("City") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#FFFFCC" ForeColor="#330099" />
<HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="#FFFFCC" />
<PagerStyle BackColor="#FFFFCC" ForeColor="#330099" HorizontalAlign="Center" />
<RowStyle BackColor="White" ForeColor="#330099" />
<SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="#663399" />
<SortedAscendingCellStyle BackColor="#FEFCEB" />
<SortedAscendingHeaderStyle BackColor="#AF0101" />
<SortedDescendingCellStyle BackColor="#F6F0C0" />
<SortedDescendingHeaderStyle BackColor="#7E0000" />
</asp:GridView>
<br />
<br />
<asp:Button ID="Button1" runat="server" onclick="Button1_Click"
Text="Download as Excel" />
</div>
</form>
</body>
</html>
Default.aspx.cs :-
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.IO;
public partial class _Default : System.Web.UI.Page
{
SqlConnection cn;
SqlDataAdapter da;
protected void Page_Load(object sender, EventArgs e)
{
cn = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=E:\C#\WebSites\Export To Excel GridView\App_Data\Database.mdf;Integrated Security=True;User Instance=True");
mahi();
}
protected void mahi()
{
da = new SqlDataAdapter("Select* from Details", cn);
DataSet ds = new DataSet();
da.Fill(ds);
GridView1.DataSource = ds;
GridView1.DataBind();
}
public override void VerifyRenderingInServerForm(Control control)
{
//required to avoid the run time error "
//Control 'GridView1' of type 'Grid View' must be placed inside a form tag with runat=server."
}
protected void Button1_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.ClearContent();
Response.ClearHeaders();
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "MyFriends.xls"));
Response.ContentType = "application/ms-excel";
GridView1.HeaderStyle.Font.Bold = true;
GridView1.HeaderRow.Style.Add("background-color", "#FFFFFF");
GridView1.GridLines = GridLines.Both;
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
GridView1.AllowPaging = false;
mahi();
GridView1.RenderControl(hw);
Response.Write(sw.ToString());
Response.End();
}
}
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