c# hide and show column in a listview

1. Add a button to the form. Name the button as buttonHideColumn.
2. Add a button to the form. Name the button as buttonShowColumn.
3. Then add following code. Change the value of the variable freezeColumn and i to freeze the user specified column. Column index start from 1. These two variables freezeColumn and i must be the same.

int freezeColumn = 2;
        int i = 2;

        private void buttonHideColumn_Click(object sender, EventArgs e)// hide
        {
            
            if (i < listView1.Columns.Count)
            {
                if (i >= freezeColumn)
                {
                    listView1.Columns[i].Width = 0;
                }
                i++;
            }

            Console.WriteLine("<<<" + i);
        }

        private void buttonShowColumn_Click(object sender, EventArgs e)// show
        {
            if (i > freezeColumn)
            {
                    i--;
                    listView1.Columns[i].Width = -2;
                
            }
            Console.WriteLine(">>>" + i);
        }