Adding and deleting files from my playlist. (WPF) [closed] - c#

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I have tried OpenFileDialog but I just can not do it right. What should be my C# code that would allow me to add and remove files from my playlist?

for your problem in wpf for open file dialog whatch thi link Open file dialog and select a file using WPF controls and C#
and for add and remove items by code watch this link http://www.c-sharpcorner.com/resources/643/how-to-add-and-remove-items-in-a-wpf-listbox.aspx

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