Silverlight系列--动态生成DataGrid列 根据动态列绑定Dictionary数据

1.获取表头数据源动态生成DataGrid表头

                    DataGridTextColumn d = new DataGridTextColumn();
                    d.Header = itemPriceClass.PriceKindCode + itemPriceClass.PriceKindName;
                    Binding bin = new Binding();
                    bin.Converter = new RowIndexConverter();
                    bin.ConverterParameter = itemPriceClass.PriceKindCode;
                    d.Binding = bin;
                    d.CanUserSort = false;
                    d.FontSize = 13;
                    d.IsReadOnly = true;
                    dgList.Columns.Add(d);

注：其中Binding这一段是对该列的数据绑定处理的，由于数据源是Dictionary中获取，所以要对数据显示部分进行处理。

        public class RowIndexConverter : IValueConverter
        {
            public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
            {
                Row row = value as Row;
                string index = parameter as string;
                return row[index];
            }

            public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
            {
                throw new NotImplementedException();
            }
        }

注：最终DataGrid的数据源部分就是List<Row>

        public class Row
        {
            Dictionary<string, object> dictionary = new Dictionary<string, object>();

            public object this[string index]
            {
                get { if (dictionary.ContainsKey(index)) { return dictionary[index]; } else { return 0; } }
                set { dictionary[index] = value;}
            }
        }

2.对数据源进行处理

得到的数据源格式

inpareaname pricekindname realcost pricekindcode

A　　　　　　ca　　　　　　100　　　　101

A　　　　　　ba　　　　　　 150　　 102

B                 da                  100　　 104

注：pricekindname就是表头显示的数据

private List<Row> CreateDataGridColumn()
        {
            List<Row> result = new List<Row>();
            if (itemPriceClassList != null && itemPriceClassList.Count > 0)
            {
                if (wardExpenseDetailByPriceItemClassList != null && wardExpenseDetailByPriceItemClassList.Count > 0)
                {
                    foreach (WardExpenseDetailByPriceItemClass detail in wardExpenseDetailByPriceItemClassList)
                    {
                        if (result.Count > 0)
                        {
                            bool flag = false;
                            foreach (Row r in result)
                            {
                                if (r["AreaName"].ToString() == detail.InpAreaName)
                                {
                                    r[detail.PriceKindCode] = detail.RealCost;
                                    flag = true;
                                    break;
                                }
                            }
                            if (!flag)
                            {
                                Row row = new Row();
                                row["AreaName"] = detail.InpAreaName;
                                row[detail.PriceKindCode] = detail.RealCost;
                                result.Add(row);
                            }
                        }
                        else
                        {
                            Row row = new Row();
                            row["AreaName"] = detail.InpAreaName;
                            row[detail.PriceKindCode] = detail.RealCost;
                            result.Add(row);
                        }
                    }
                }
            }
            rowDataList = result;
            return result;
        }

注：还有一种解决方案---未测试

1.在silverlight的service层中动态生成实体类，其中属性为表头的值，service层动态拼接成List<T>传到client端。

注：object类型传到client端会出错的。

Silverlight系列--动态生成DataGrid列 根据动态列绑定Dictionary数据