I have a Form Code Like this
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="SalesDetails.aspx.cs" Inherits="SalesDetails" %>
<!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>
</head>
<body>
<form id="form1" runat="server">
<div>
<table align="center">
<tr style ="border-width: 1px">
<td>
Sales Details
</td>
</tr>
<tr>
<td>
<asp:Label ID="LblCompanyName" runat="server" Text="CompanyName"></asp:Label>
</td>
<td>
<asp:TextBox ID="TxtCompanyName" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TxtCompanyName"
ErrorMessage="Enter Company Name" ValidationGroup="validation">*</asp:RequiredFieldValidator></td>
</tr>
<tr>
<td style="height: 26px">
<asp:Label ID="LblSize" runat="server" Text="Size"></asp:Label>
</td>
<td style="height: 26px">
<asp:TextBox ID="TxtSize" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="TxtSize"
ErrorMessage="Enter Size Of The Company" ValidationGroup="validation">*</asp:RequiredFieldValidator></td>
</tr>
<tr>
<td>
<asp:Label ID="LblDescription" runat="server" Text="Description"></asp:Label>
</td>
<td>
<asp:TextBox ID="TxtDescription" runat="server" TextMode="MultiLine" Width="149px"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="TxtDescription"
ErrorMessage="Enter Description Of The Company" ValidationGroup="validation">*</asp:RequiredFieldValidator></td>
</tr>
<tr>
<td>
<asp:Label ID="LblExpRevenue" runat="server" Text="Expected Revenue"></asp:Label>
</td>
<td>
<asp:TextBox ID="TxtExpRevenue" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ControlToValidate="TxtExpRevenue"
ErrorMessage="Enter Revenue Of The Company" ValidationGroup="validation">*</asp:RequiredFieldValidator></td>
</tr>
<tr>
<td>
<asp:Label ID="LblContactNo" runat="server" Text="Contact Number"></asp:Label>
</td>
<td>
<asp:TextBox ID="TxtContactNo" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ControlToValidate="TxtContactNo"
ErrorMessage="Enter Contact person Of The Company" ValidationGroup="validation">*</asp:RequiredFieldValidator></td>
</tr>
<tr>
<td>
<asp:Label ID="LblBoardNo" runat="server" Text="Board Number"></asp:Label>
</td>
<td>
<asp:TextBox ID="TxtBoardNo" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="TxtBoardNo"
ErrorMessage="Enter Board Number" ValidationGroup="validation">*</asp:RequiredFieldValidator></td>
</tr>
<tr align ="center">
<td>
<asp:Button ID="Button1" runat="server" Text="Submit" OnClick="Button1_Click" ValidationGroup="Validation"/>
<asp:Label ID="lbl" runat="server"></asp:Label></td>
</tr>
<tr>
<td>
<asp:ValidationSummary ID="ValidationSummary1" runat="server" ValidationGroup="Validation" />
</td>
</tr>
<tr>
<td>
<asp:FileUpload ID="FileUploader1" runat ="server"/>
</td>
<td>
<asp:Button ID="UploadBtn" Text="Upload File" runat="server" OnClick="UploadBtn_Click" />
</td>
</tr>
</table>
</div>
</form>
</body>
</html>When button UpLoadFile clicked the values in the Excel sheet which i have. should display in the textbox controls.