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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。