Attempted to read or write protected memory. When I call showDialog method of openfileDialog

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3.00/5 (1 vote)

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Hi
recently in my project when I call showdialog method of openfiledialog I get this error: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt."

I has been searching all over the web before now but my problem is not solved. Also I installed microsoft patch, but because my project is in .Net 3.5, it was not useful.

Thanks for any help.

Posted 8-Dec-11 3:26am

Hamid Khezeli

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Comments

Timberbird 8-Dec-11 9:41am

Provide the code you use to open the file dialog

Richard MacCutchan 8-Dec-11 10:01am

This error is more likely caused by a bug in your code. Check all the values and references in you dialog to ensure that they are correct.

Hamid Khezeli 8-Dec-11 13:49pm

Thanks for replies,
It's a simple Code like:
OpenFileDialog OFD = new OpenFileDialog();
OFD.ShowDialog(); // In this line I get error

Also I follow my source code and realize before connect to Oledb database(Aceess) my code work correctly and after connect to database it get error.
Additionally, I get this error recently and before it was worked correctly.

Please help me. there isn't a good solution in the web even at microsoft website.

Timberbird 9-Dec-11 7:13am

Have you checked this page? Some people there seem to have the same problem

BillWoodruff 10-Dec-11 17:44pm

I think this is an excellent referral, and if posted as an answer, I would have voted you 5 !

Addy Tas 8-Dec-11 18:17pm

Is there a onload event or something like it being handled in the dlg? If so; when that does something nasty you may end up like this.

Hamid Khezeli 10-Dec-11 3:08am

Thanks all,
I checked above link but my problem still exists.

BillWoodruff 10-Dec-11 17:50pm

It might help to add some comment about the "context" here: 0. this is WinForms ? 1. why are you not re-using an instance of the OpenFileDialog component created at design-time, rather than created "on-the-fly" ? 2. is there any kind of structure here that's "wrapping" the use of the OpenFileDialog ... like a "using {}" block.

And, finally, have you tried setting all the compiler options, as suggested by content in the MS page that Timberbird gave you a link to above ?

Hamid Khezeli 10-Dec-11 23:42pm

Thanks for help.

0) Yes, it is Windows form, .NET 3.5 , Visual Studio 2008
1) I use both of them, actually I use OpenFileDialog , SaveFileDialog, and folderDialog in design view and after one day all of them got this error. After that I use above code for test it in run time but also that was unsuccessful.
2) No, I don’t use them; In addition I checked all kind of these things.

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