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AccessDataSource.ConnectionString Property

Gets the connection string that is used to connect to the Microsoft Access database.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public override string ConnectionString { get; set; }
<asp:AccessDataSource ConnectionString="String" />

Property Value

Type: System.String
The OLE DB connection string that the AccessDataSource control uses to connect to an Access database, through the System.Data.OleDb .NET data provider.


An attempt was made to set the ConnectionString property.

The AccessDataSource control can be used only with the System.Data.OleDb .NET data provider, and the connection string that AccessDataSource uses is specific to this provider. Therefore, the AccessDataSource control exposes connection string settings, such as the DataFile property, as a property and constructs a connection string at run time using the values of the ConnectionString property, if set.

The following code example demonstrates how to display the ConnectionString property of the AccessDataSource control in an ASP.NET Web page.

<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<script runat="server">
private void Page_Load(Object sender, EventArgs e) {
  Label1.Text = AccessDataSource1.ConnectionString;

<html xmlns="" >
  <head runat="server">
    <title>ASP.NET Example</title>
    <form id="form1" runat="server">




.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.