Sets or returns the number of columns in the area.

 public int ColumnCount{ get; }
Public ReadOnly Property ColumnCount() As Integer
//--- Get ColumnCount
int colCount = a.ColumnCount;

//--- Set ColumnCount
a.ColumnCount = 7;

'--- Get ColumnCount
Dim colCount As Integer = a.ColumnCount

'--- Set ColumnCount
a.ColumnCount = 7