CheckBoxList控件绑定数据和设置选定项

//获取属性
                    ProductPropertyDataSet propertyList = ProductProperty.SelectProductPropertyData();
                    
                    foreach (var item in propertyList.DataList)
                    {
                        cblProperty.Items.Add(new ListItem(item.PropertyName, item.PropertyId.ToString()));
                    }

                    int id = int.Parse(Request.QueryString["id"].ToString());
                    DataTable dt = ProductCategory.SelectCategoryRelationPropertyDataByCategoryId(id);
                    for (int i=0;i<cblProperty.Items.Count;i++)
                    {
                        for (int j = 0; j < dt.Rows.Count; j++)
                        {
                            if (cblProperty.Items[i].Value == dt.Rows[j]["propertyId"].ToString())
                            {
                                cblProperty.Items[i].Selected = true;
                            }
                        }
                    }