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Is there a way to start a method in C# if a key is pressed? For example, Esc?

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use the OnKeyPress Event of your textbox and in the event

if(e.KeyCode==Keys.Escape)
{
    yourTextBox.Text = string.Empty;
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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