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Asked: 2026-06-11T00:29:39+00:00

I’m coding a textbox that auto suggest when I’m writing, but when autocomplete appear,

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I’m coding a textbox that auto suggest when I’m writing, but when autocomplete appear, if I press Down, my textBox1.Text change, therefore it call TextChanged function, and autocomplete list is being update.

I want while I press Down, the text dont change ultil I press Enter. Is any way to fix this issue?

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1 Answer

  1. Editorial Team

    Apart from implementing your own autocomplete, such as by overriding OnTextChanged and showing a list, the only options to control the behavior of autocomplete on a WinForms TextBox are given by the AutoCompleteMode property and the enumeration of the same name. See C# AutoComplete for a related question.

    Third party text boxes may have more options but I am not aware of any that do.

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