Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Prevent certain data types from Attachment field

Posted on 2011-09-25
5
286 Views
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?
0
Comment
Question by:stathisx
  • 4
5 Comments
 
LVL 10

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
0
 
LVL 1

Assisted Solution

by:stathisx
stathisx earned 0 total points
ID: 36596065
there is no such property in the attachment field !
0
 
LVL 1

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)
0
 
LVL 1

Accepted Solution

by:
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 :)
0
 
LVL 1

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.
0

Featured Post

Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A simple tool to export all objects of two Access files as text and compare it with Meld, a free diff tool.
As tax season makes its return, so does the increase in cyber crime and tax refund phishing that comes with it
Familiarize people with the process of utilizing SQL Server stored procedures from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Micr…
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…

828 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question