DGV单元格合并标题（dgv封装）

1.效果图

2.实现代码

  List<GridColumn> columns = new List<GridColumn>();
            columns.Add(new GridColumn() { Caption = "使用人", ParentGroupKey = "使用", DataType = typeof(string), Field = nameof(ChgRcptStatisticalVo.UserName), Visible = true, Width = 100 });
            columns.Add(new GridColumn() { Caption = "正常", ParentGroupKey = "使用", DataType = typeof(string), Field = nameof(ChgRcptStatisticalVo.NormalSum), Visible = true, Width = 100 });
            columns.Add(new GridColumn() { Caption = "重打", ParentGroupKey = "使用", DataType = typeof(string), Field = nameof(ChgRcptStatisticalVo.NormalReTypeSum), Visible = true, Width = 100 });
            columns.Add(new GridColumn() { Caption = "报损", ParentGroupKey = "使用", DataType = typeof(string), Field = nameof(ChgRcptStatisticalVo.NormalBreakdownSum), Visible = true, Width = 100 });
            columns.Add(new GridColumn() { Caption = "总数", ParentGroupKey = "使用", DataType = typeof(string), Field = nameof(ChgRcptStatisticalVo.UseSum), Visible = true, Width = 100 });
            columns.Add(new GridColumn() { Caption = "作废", ParentGroupKey = "收回", DataType = typeof(string), Field = nameof(ChgRcptStatisticalVo.RecycleInvalidSum), Visible = true, Width = 100 });
            columns.Add(new GridColumn() { Caption = "重打", ParentGroupKey = "收回", DataType = typeof(string), Field = nameof(ChgRcptStatisticalVo.RecycleRetypeSum), Visible = true, Width = 100 });
            columns.Add(new GridColumn() { Caption = "总数", ParentGroupKey = "收回", DataType = typeof(string), Field = nameof(ChgRcptStatisticalVo.RecoverySum), Visible = true, Width = 100 });
            dgvMain.InitColumns(columns);