public void Add(C1DataColumnViewModel column)
        {
            this.Items.Add(column);
            var displayColumn = StaticContainer.Instance.Resolve <C1DisplayColumn>();

            displayColumn.Name = column.Caption;
            _viewModel.Splits[0].DisplayColumns.Add(displayColumn);
        }
 public void Remove(C1DataColumnViewModel column)
 {
     Items.Remove(column);
 }