How prevent duplicate items listView C#

Question

I am using Windows Forms. With this code I add items to listView from comboBox.

ListViewItem lvi = new ListViewItem();         


        

Answer 1

This code worked for me:

if(DialogResult.OK == fileDialogue.ShowDialog())
            {
                foreach (var v in fileDialogue.FileNames)
                {
                    if (listView.FindItemWithText(v) == null)
                    {
                        listView.Items.Add(v);
                    }

                    else
                    //Throw error message