c# winForms how to filter combobox

I have combobox which dropDownStyle is dropDown, datas开发者_JAVA百科ource is arraylist . When user input value in combo box i want to filter and show in list only that value which is look like inputed string.

please help

You can set the following properties on ComboBox to get the autocomplete feature

comboBox1.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
comboBox1.AutoCompleteSource = AutoCompleteSource.ListItems;