Path Selection with a Common Dialog Box
The last item on our to-do list is allowing the user to change the path of the picture files. WPF itself doesn’t have any built-in dialog box classes to manage this, but the System.Windows.Forms namespace has just what we need: the FolderBrowserDialog class. This is launched from within the event handler for our FolderOpenMenuItem click event:
When a user selects a folder, we update our internal field appropriately, reload the DirectoryImageList class with the new path, and then reset our window’s DataContext property to reflect the change. This is a perfect example of how seamless it is to use other .NET ...
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