how to set start page in webconfig file in asp.net c#

How to set start page using Web.config file. I have tried this code

<system.webServer>
        <defaultDocument enabled="true">
            <files>
                <clear />
                <add value="index.aspx"/>
            </files>
        </defaultDocument>
    </system.webServer>

But it did not work for me. I have set start page by right click on page in solution explorer then choose option set as start page but how can I do it programmatically?

Solution 1:

The following code worked fine for me. Kindly check other setting in your Web.config

 <system.webServer>
     <defaultDocument>
            <files>
                <clear />               
                <add value="Login.aspx"/>
            </files>
        </defaultDocument>
    </system.webServer>

Solution 2:

If your project contains a RouteConfig.cs file, then you probably need to ignore the route to the root by adding routes.IgnoreRoute(""); in this file.

If it doen't solve your problem, try this :

void Application_BeginRequest(object sender, EventArgs e)
{
    if (Request.AppRelativeCurrentExecutionFilePath == "~/")
        Response.Redirect("~/index.aspx");
}

Solution 3:

I think this will help

    <directoryBrowse enabled="false" />
    <defaultDocument>
      <files>
        <clear />
        <add value="index.aspx" />
        <add value="Default.htm" />
        <add value="Default.asp" />
        <add value="index.htm" />
        <add value="index.html" />
        <add value="iisstart.htm" />
        <add value="default.aspx" />
        <add value="index.php" />
      </files>
    </defaultDocument>
  </system.webServer>