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Quick Way to Disable Copy-Paste in a Textbox in a WinForms Application

Quick Way to Disable Copy-Paste in a Textbox in a WinForms Application

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In the old versions of .NET, we needed to override the default context menu and override the ProcessCmdKeyfunction to return True to disable Copy-Paste of content into textboxes through keys such as Ctrl+C, Ctrl+V, Shift+Insert, etc.

In the newer versions of .NET, we can just disable the “ShortcutsEnabled” property to False. This will do the trick. You can no longer copy/paste or perform any other actions through shortcuts on the textbox.

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