help in HTMLInputFile control

[Ghost]

i am trying to upload files of a certain type, say image. but using the HTMLInputFile control, i cannot seem to restrict the file types. can anyone help me on this?

 

i tried the property FileBrowser.Accept = "image/*";

 

on Page_Load(). this does not work.

 

"FileBrowser" is the name of my HTMLInputFile control.

[Robby]

The following allows pdf, txt and zip (for example)

Dim UpFile As HttpPostedFile = FileBrowser.PostedFile
If ValidateUploadFileType(UpFile.ContentType.ToString) Then
   'valid
else
   'not valid
end if  

 Private Function ValidateUploadFileType(ByVal txt As String) As Boolean
       If txt.IndexOf("text/plain") > -1 OrElse txt.IndexOf("x-zip") > -1 OrElse txt.IndexOf("pdf") > -1 Then
           Return True
       Else
           Return False
       End If
   End Function

[Ghost]

using wildcard

 

Thank you for the reply. But what i want to do is, give a wildcard character or something so that i dont have to specify the extension name each time in the IF condition. Say, i want all IMAGE types - it would be nice if i could just mention "*" or something so that the FILE DIALOG box which pops up shows only those image file options in the "FileTypes".

 

Get what i mean?

[Robby]

Sorry I misunderstood your question.

 

I would put a bunch of OrElse together and list the types (jpg,gif, bmp, etc)

For example, I wouldn't allow PCX format. (but that's just me)

[Derek Stone]

Very few of the current Web browsers support the specifying of file types in the file input tag. You're pretty much out of luck in that regard. You'll have to filter at the server.

[Ghost]

Thank you, people. I also read somewhere that the ACCEPT property of the HTMLFileInput class works only for Netscape and not for IE.

 

If anyone gets any further info on the same / if it is possible in any way, please revert. Thanks.