How to clear data from list view in c#

Question

I have a button \"Show data\". When click it, data will display in list view. But I want to clear it and then click \"Show data\" again to display new data. Because I don\'t

Answer 1

What about the following?

ListView lv = new ListView();
while (lv.Items.Count > 1) {
    //leave the header
    lv.Items.RemoveAt(1);
}