AutoComplete in .NET Winforms TextBox

  Winforms Textbox has a property called AutoCompleteMode,  that can be used to display textbox values like a predictive Google search. You can provide a custom list of items that can be used as values in textbox.

The following code snippet demonstatrates implementation.

.NET Winforms TextBox AutoComplete

  private void Form1_Load(object sender, EventArgs e)


            tbCountry.AutoCompleteMode = AutoCompleteMode.Suggest;

            tbCountry.AutoCompleteSource = AutoCompleteSource.CustomSource;

           tbCountry.AutoCompleteCustomSource = CountryList();



        private  AutoCompleteStringCollection CountryList()


            AutoCompleteStringCollection List = new AutoCompleteStringCollection();









            return List;


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AutoComplete in Textbox winforms, windows , .NET windows application