Introduction

I have gone through a lot of AutoComplete TextBox in WPF articles. This article is a simple approach for achieving AutoComplete for TextBox.

Crating WPF Application Project

Fire up Visual Studio 2008 and Create a WPF Application and name the project as AutoCompleteWPF.

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Here is the basic things we need to do for achieving AutoComplete feature for a TextBox.

First we need to have a TextBox and a ListBox. You can see the below screenshot and xaml for reference.

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Now we would write code to achieve this.

Create a sample data, in our case it is List of Strings.

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Now in TextChanged event we need to write the below code:

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As we would see the suggestion would pop up and we can select on the particular item write the below code for SelectionChanged event of ListBox.

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That's it. Run the application.

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You can design the suggestion style as per your requirement.

Hope this article helps.