if (checkedListBox1.CheckedItems.Count != 0) { // If so, loop through all checked items and print results. string s = "" ; for ( int x = 0; x <= checkedListBox1.CheckedItems.Count - 1 ; x++) { s = s + "Checked Item " + (x+1).ToString() + " = " + checkedListBox1.CheckedItems[x].ToString() + "\n" ; } MessageBox.Show (s); }