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[Solved] (Very) Weird AllowedFileExtensions Problem

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Upload (Obsolete)

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-DJ- asked on 15 Apr 2009, 03:11 PM

Hi guys,

This problem I'm facing is so weird that I cannot really believe it.

    
            1    Dim intRows As Integer = ds.Tables(0).Rows.Count() 
        
            2    upload.AllowedFileExtensions = New String(intRows) {} 
        
            3    Dim x As Integer 
        
            4    For Each row As DataRow In ds.Tables(0).Rows 
        
            5        'upload.AllowedFileExtensions.SetValue("." & row("FileTypeEnding"), x) 
        
            6        upload.AllowedFileExtensions.SetValue(row("FileTypeEnding"), x) 
        
            7        x += 1 
        
            8    Next

On my dev machine, running XP and IIS 5, line 6 works as expected.
But not on my server, running Server 2003 and IIS 6. There it's line 5 that works correctly.

Can you believe it?

Regards,
-DJ-

4 Answers, 1 is accepted

answered on 20 Apr 2009, 07:35 AM

Hi -DJ-,

That's a very interesting one!

I haven't come across such a behavior, but it could possibly be related to some environment setting on the server. FYI, I've always used the syntax with a dot and it has worked correctly. You could try something like File.GetExtension("." & row("FileTypeEnding"))...

Just to make sure, can you check if you have the same entries (with a leading dot) on both the server and the development machines?

Kind regards,
Erjan Gavalji
the Telerik team

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answered on 22 Apr 2009, 10:29 AM

Hi Erjan,

I think that everything I said was total nonsense.
Looks like the DB's I was working with weren't identical, one actually had a dot before the extension while the other one didn't, which would explain this :)

However, I'm still experiencing some problems with the upload control.
More times than not I get this error:

    
            [NullReferenceException: Object reference not set to an instance of an object.] 
        
               Telerik.Web.UI.RadUpload.IsValidExtension(UploadedFile file) +141 
        
               Telerik.Web.UI.RadUpload.IsValidUploadedFile(UploadedFile file, Boolean checkingFileSize, Boolean checkingFileExtension, Boolean checkingMimeType) +135 
        
               Telerik.Web.UI.RadUpload.ValidateUploadedFiles() +217 
        
               Telerik.Web.UI.RadUpload.OnLoad(EventArgs e) +13 
        
               System.Web.UI.Control.LoadRecursive() +47 
        
               System.Web.UI.Control.LoadRecursive() +131 
        
               System.Web.UI.Control.LoadRecursive() +131 
        
               System.Web.UI.Control.LoadRecursive() +131 
        
               System.Web.UI.Control.LoadRecursive() +131 
        
               System.Web.UI.Control.LoadRecursive() +131 
        
               System.Web.UI.Control.LoadRecursive() +131 
        
               System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436

Which seems to be related to some embedded checking that I really have no use for. I do validate the type and size myself, so how can I get passed this point without using the built in checking?

Regards,
-DJ-