privat evoid AddGroup()

        {

//设置行列数

this.fpSpread1.ActiveSheet.ColumnCount = 20;

this.fpSpread1.ActiveSheet.RowCount = 20;

//添加列分组

            fpSpread1.ActiveSheet.AddRangeGroup(4, 10, false);

//添加行分组

            fpSpread1.ActiveSheet.AddRangeGroup(4, 10, true);

        }