Support forums - Re: How do I get UploadAttachments events to fire for server-side validation prior to upload?

Re: How do I get UploadAttachments events to fire for server-side validation prior to upload?

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You can do the same thing in Ajax Uploader.

Private Sub Uploader_FileUploaded(ByVal sender As Object, ByVal args As UploaderEventArgs)

Dim fname As String = args.FileName

'Here I can do some validation on the file type

If fname.EndsWith(".jpg") Then

'I can also augment the file name prior to uploading, like this:

fname = Now.ToString("yyyyMMdd-HHMMss-") & fname

'Copies the uploaded file to a new location.

'args.CopyTo("c:\\temp\\"& fname)

Else

'Inform user that file must be of type .jpg

End If

End Sub

<CuteWebUI:Uploader runat="server" ID="Uploader1" OnFileUploaded="Uploader_FileUploaded"></CuteWebUI:Uploader>

Even better, Ajax Uploader can detect the allowed file upload types in the client end.

Demo:

Code:

<CuteWebUI:Uploader runat="server" ID="Uploader1" OnFileUploaded="Uploader_FileUploaded">

</CuteWebUI:Uploader>