Not able to pass variables from page to user control

[- Pavana]

Hello, I am trying to pass variable value from an aspx page to an ascx
page, but haven't been successful. This is the code:

In the .ascx.cs file:

public string filefolder;
public string FPath
{
get {return filefolder;}
set {filefolder = value;}
}
In the .aspx file:

<era:upload id=uploadControl runat="server"
FPath="<%#username%>"></era:upload>
And in .aspx.cs file:

public string username;
username = "blahblah";
I looked at postings in many forums and almost all of them give the
same example, but it is just not working for me. The 'filefolder'
variable in .ascx.cs file is not receiving the 'username' variable
value in .aspx.cs file, 'filefolder' is empty.

Any help would be greatly appreciated. I have been trying this the
whole week and it is not working.

Thanks!