DataGridView批量删除

 DataGridViewSelectedRowCollection selectedRowCollection = this.dgdWorkUnit.DataGrid.SelectedRows;
            List<DataGridViewRow> deleteViewRowList = new List<DataGridViewRow>();
            if (selectedRowCollection.Count > 0)
            {
                //选中的是整行
                deleteViewRowList.AddRange(selectedRowCollection.Cast<DataGridViewRow>());
            }
            if (!deleteViewRowList.Any())
            {
                //选中的是单元格
                DataGridViewSelectedCellCollection selectedCellCollection = this.dgdWorkUnit.DataGrid.SelectedCells;
                if (selectedCellCollection.Count > 0)
                {
                    deleteViewRowList = (from DataGridViewCell dataGridViewCell in selectedCellCollection
                                         select dataGridViewCell.OwningRow).Distinct().ToList();
                }
            }

此时，只需要判断deleteViewRowList是否为空，如果为空，表示没有选中任务行或者单元格。之所以这样判断是因为用户在选择的时候，有可能选择行，也有可能选择单元格。