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

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

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