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Prevent certain data types from Attachment field

Posted on 2011-09-25
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Last Modified: 2012-05-12
Hello experts ,
is there any way to prevent user from uploading certain data types to the attachment field? i want to insert only picture files and reject all other file types supported by the attachment field by showing a warning message.
How can this be achieved?
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Question by:stathisx
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Expert Comment

by:Tony Barkdull
ID: 36596039
In you file upload, use this to specify type and size. This is from my asp page

'The the properties of the upload
File.ValidFileTypes = "jpg,gif,png"
File.MaxSize = 1024*1024
File.Overwrite = false 'Do not overwrite, create unique filename
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Assisted Solution

by:stathisx
stathisx earned 0 total points
ID: 36596065
there is no such property in the attachment field !
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Assisted Solution

by:stathisx
stathisx earned 0 total points
ID: 36596079
there is .filetype that may be used in vba to control which data types should be allowed ( just a thought)
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stathisx earned 0 total points
ID: 36596164
i found the solution :

Private Sub uploadpath_BeforeUpdate(Cancel As Integer)
If Me.uploadpath.FileType <> ".jpg" Or Me.uploadpath.FileType <> ".png" Or Me.uploadpath.FileType <> ".jpeg" Then
MsgBox "denied attachment"
Cancel = True
End If
End Sub

it does the job :)
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Author Closing Comment

by:stathisx
ID: 36890339
i found that the filedata property for the attachment field does what i really wanted. so in before update event of the attachment field a used this code to validate the attachment uploaded and if does not meet my criteria to reject it.
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