DataTable操作相关实例

        public DataSet GetChildDepartmentsByUserId(Guid userId) 
        {
            DataSet ds = new DataSet();
            try 
            {
                OrgChartDB.OrgChart_PermissionDataTable pdt = permissionTableAdapter.GetDataByUserId(userId);
                for (int i = 0; i < pdt.Rows.Count; i++)
                {
                    Guid deptId = pdt[i].DepartmentId;
                    OrgChartDB.OrgChart_DepartmentsDataTable ddtAllChildDepartments = departmentsTableAdapter.GetChildDepartmentByDepartmentId(pdt.Rows[0][0]);
                    ds.Tables.Add(ddtAllChildDepartments);
                }
                //OrgChartDB.OrgChart_DepartmentsDataTable ddtAllChildDepartments = departmentsTableAdapter.GetChildDepartmentByDepartmentId(pdt.Rows[0][0]);
                return ds;

            }
            catch (Exception ex) 
            {

            }
        }

根据一个datatable中的一列值获取多个datatable并加入到dataset中。

注：此处pdt[i]返回PermissionDataRow能点出属性。

pdt.rows[0].[i]返回DataRow，点不出属性。