Dear mbirchem,

 

I have tested the following code, it works, please refer to it

 

  <CuteWebUI:Uploader runat="server" ID="Uploader1" InsertText="Upload"
                OnFileUploaded="Uploader_FileUploaded"
                onuploadcompleted="Uploader1_UploadCompleted"
                DialogFilter="Images (pdf/xls/doc/tif)|*.pdf;*.xls;*.doc;*.tif|All files (*.*)|*.*">
                <ValidateOption  MaxSizeKB="100" />
            </CuteWebUI:Uploader>

 

Regards,

Eric