Cannot Delete File using C# Windows Forms Application

I am opening a file from a location (say, X) in a PictureBox.

After that, if the user clicks on a button say "btn1" then I copy the file 开发者_如何学编程from Location X to Location Y using File.Copy().

After that I set the Picturebox1.Image=null; ...and use File.Delete(X);

At this point Visual studio shows me the exception that The file cannot be deleted as it is being used by another process.

Any ideas as to why would that be?

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Call Picturebox1.Image.Dispose().

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You can use File.Move() as workaround http://msdn.microsoft.com/en-us/library/system.io.file.move.aspx

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Make sure you are disposing the original Image.

Otherwise, another program has a handle on it.