從字串集合中自動完成

var source = new AutoCompleteStringCollection();

// Add your collection of strings.
source.AddRange(new[] { "Guybrush Threepwood", "LeChuck" });

var textBox = new TextBox
{
    AutoCompleteCustomSource = source,
    AutoCompleteMode = AutoCompleteMode.SuggestAppend,
    AutoCompleteSource = AutoCompleteSource.CustomSource
};

form.Controls.Add(textBox);

當使用者嘗試鍵入 GL 時,這將自動完成。 **** ****

AutoCompleteMode.SuggestAppend 將顯示建議值列表,它將自動鍵入第一個匹配,Append only 和 Suggest 也可用。