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Syncfusion Feedback
Platform : WinForms
Category : TextBox

How can I place a TextBox in overwrite mode instead of insert mode

You can handle the textbox’s KeyPress event and if you want the keypress to be an overwrite, just select the current character so the keypress will replace it. The attached sample has a derived textbox that has an OverWrite property and a right-click menu that allows you to toggle this property.

The snippet below shows you a KeyPress handler that automatically does an overwrite if the maxlength of the textbox has been hit. This does not require a derived class.

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