The gridview doesn't provide such option out of the box. However, you can implement this with some custom code. Basically, you can add context menu as shown in the following article
. And then you can manually find the item you want to duplicate, copy it (create new instance and set its properties) and insert it in the ItemsSource collection of RadGridView.
As a side note, I saw that there is a forum that duplicates this one. I removed it so that we can keep this topic in a single thread.
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