How do I know if the user selected a SharePoint file in OpenFileDialog?

Question

In an OpenFileDialog, the user can enter the address of the SharePoint site and select a document in the document library. I need to provide check-in/check-out integration for SharePoint documents. Is there any way to determine if the file is stored in a SharePoint document library?

Thanks in advance!

Answer 1

After the dialog returns, you can check the value of the selected file. If there's a value, they probably selected a file. You can validate that a file was actually selected by attempting to open the file.

Start here: http://msdn.microsoft.com/en-us/library/system.windows.forms.openfiledialog.aspx