This How To was written in response to the following question in the C# Corner Forums about ListViews:
The user states:
Question: "I have code which I used to check duplication in a ListView, but it doesn't seem to be working. Here is my situation. I have three columns in a ListView and I want to check to make sure that I don't duplicate a field when I add an item to the ListView. How do I do that?"
I tried this code, but it doesn't seem to work:
|if (listView1.Items.Contains(lvi) == false)|
//Add the item to the ListView Control
//Warn user of duplicate entry...