C# is there a way to make a column in a list view invisible?

As an alternative to Ravi's answer, there is a quick and dirty "hack" that you can use, assuming you are using Windows Forms here. When you add an item into a listview, you are adding an instance of a ListViewItem. This class has a Tag property that you can use as a property bag to store pretty much anything in. It's entirely possible for you to store what you need in this property.

If you are using data binding, like in this article here: Data binding a ListView[^], then the ListView control becomes a view of the data, not the data container itself. Then you only need to show the properties as columns, as required. This means there is no requirement to "hide" any columns.