FileUpload control - How to limit 'Files of Type'?

[VB Programmer]

How do you limit the "Files of Type" selections in the dialog for a
FileUpload control?

[VB Programmer]

FYI: Here's one way...

<asp:RegularExpressionValidator
id="RegularExpressionValidator1" runat="server"
ErrorMessage="Bad file type..."
ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.mpeg|.MPEG|.wmv|.WMV|.avi|.AVI|.mov|.MOV)$" ControlToValidate="FileUpload1"></asp:RegularExpressionValidator>"VB Programmer" <do**@emailme.com> wrote in messagenews:OX**************@TK2MSFTNGP14.phx.gbl. ..> How do you limit the "Files of Type" selections in the dialog for aFileUpload control?>