Accessing an Excel Spreadsheet in ASP.NET (VB and C#) by Alex Lowe

Contributed by aspfree
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May 08, 2001

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Read Excel files from ASP.NET

This page provides a simple example of how to query an Excel spreadsheet
from an ASP.NET page using either C# or VB.NET. Check it out!

This code was written in response to a message posted on one of
Charles Carroll''s ASP.NET lists.

Here is the code:

<%@ Page Language="VB" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.Oledb" %>

<script language="VB" runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
Dim myDataset As New DataSet()

''You can also use the Excel ODBC driver I believe - didn''t try though
Dim strConn As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:\exceltest.xls;" & _
"Extended Properties=""Excel 8.0;"""

''You must use the $ after the object you reference in the spreadsheet
Dim myData As New OledbDataAdapter("SELECT * FROM [Sheet1$]", strConn)
myData.TableMappings.Add("Table", "ExcelTest")
myData.Fill(myDataset)

DataGrid1.DataSource = myDataset.Tables(0).DefaultView
DataGrid1.DataBind()
End Sub
</script>

<html>
<head></head>
<body>
<p><asp:Label id=Label1 runat="server">SpreadSheet Contents:</asp:Label></p>
<asp:DataGrid id=DataGrid1 runat="server"/>\
</body>
</html>

C# Syntax

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data.OleDb" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System" %>

<script language="C#" runat="server">
protected void Page_Load(Object Src, EventArgs E)
{
string strConn;
strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" +
"Data Source=C:\\exceltest.xls;" +
"Extended Properties=Excel 8.0;";
//You must use the $ after the object you reference in the spreadsheet
OleDbDataAdapter myCommand = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strConn);

DataSet myDataSet = new DataSet();
myCommand.Fill(myDataSet, "ExcelInfo");
DataGrid1.DataSource = myDataSet.Tables["ExcelInfo"].DefaultView;
DataGrid1.DataBind();
}
</script>
<html>
<head></head>
<body>
<p><asp:Label id=Label1 runat="server">SpreadSheet Contents:</asp:Label></p>
<asp:DataGrid id=DataGrid1 runat="server"/>\
</body>
</html>