​​private​​ ​​void​​ ​​Form1_Load(​​​​object​​ ​​sender, EventArgs e) ​​

​​{ ​​


​​AutoCompleteStringCollection strings = ​​​​new​​ ​​AutoCompleteStringCollection(); ​​


​​strings.Add(​​​​"A1"​​​​);​​​​//不区分大小写 ​​


​​strings.Add(​​​​"A2"​​​​); ​​


​​strings.Add(​​​​"Aas"​​​​); ​​


​​strings.Add(​​​​"B1"​​​​); ​​


​​strings.Add(​​​​"Beijing"​​​​); ​​


​​strings.Add(​​​​"bb-cims"​​​​); ​​


​​textBox1.AutoCompleteCustomSource = strings; ​​


​​textBox1.AutoCompleteSource = AutoCompleteSource.CustomSource; ​​


​​textBox1.AutoCompleteMode = AutoCompleteMode.Suggest; ​​


​​}​​