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Asked: 2026-05-16T11:55:32+00:00

How can I copy a string (e.g hello) to the System Clipboard in C#,

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How can I copy a string (e.g “hello”) to the System Clipboard in C#, so next time I press CTRL+V I’ll get “hello”?

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  1. Editorial Team

    There are two classes that lives in different assemblies and different namespaces.

    • WinForms: use following namespace declaration, make sure Main is marked with [STAThread] attribute:

      using System.Windows.Forms;

    • WPF: use following namespace declaration

      using System.Windows;

    • console: add reference to System.Windows.Forms, use following namespace declaration, make sure Main is marked with [STAThread] attribute. Step-by-step guide in another answer

      using System.Windows.Forms;

    To copy an exact string (literal in this case):

    Clipboard.SetText("Hello, clipboard");

    To copy the contents of a textbox either use TextBox.Copy() or get text first and then set clipboard value:

    Clipboard.SetText(txtClipboard.Text);

    See here for an example.
    Or… Official MSDN documentation or Here for WPF.

    Remarks:

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