江湖救急，急。如何遍历，并“循环设置属性”？

Question

有一个类，它有35个属性，如下：public class ColumnModel
    {
        public string Column0 { get; set; }
        public string Column1 { get; set; }
        public string Column2 { get; set; }
        public string Column3 { get; set; }
        public string Column4 { get; set; }
        public string Column5 { get; set; }
        public string Column6 { get; set; }
        public string Column7 { get; set; }
        public string Column8 { get; set; }
        public string Column9 { get; set; }
        public string Column10 { get; set; }
        public string Column11 { get; set; }
        public string Column12 { get; set; }
        public string Column13 { get; set; }
        public string Column14 { get; set; }
        public string Column15 { get; set; }
        public string Column16 { get; set; }
        public string Column17 { get; set; }
        public string Column18 { get; set; }
        public string Column19 { get; set; }
        public string Column20 { get; set; }
        public string Column21 { get; set; }
        public string Column22 { get; set; }
        public string Column23 { get; set; }
        public string Column24 { get; set; }
        public string Column25 { get; set; }
        public string Column26 { get; set; }
        public string Column27 { get; set; }
        public string Column28 { get; set; }
        public string Column29 { get; set; }
        public string Column30 { get; set; }
        public string Column31 { get; set; }
        public string Column32 { get; set; }
        public string Column33 { get; set; }
        public string Column34 { get; set; }
    }功能要求：      声明一个该类的实体集 “List<ColumnModel> columnmodellists”，并填充值，填充规则如下。      1、声明循环变量“i”，其初始值为“0”。循环为“ColumnModel”的35个属性赋值。      2、当“i”为“0”时，为“Column0”属性赋值。           当“i”为“1”时，为“Column1”属性赋值。           当“i”为“2”时，为“Column2”属性赋值。            以此类推............................................           当“i”为“34”时，为“Column34”属性赋值。代码片段如下：       List<ColumnModel> columnmodellists = new List<ColumnModel>();                          columnmodellists.Clear();         ColumnModel columnmodel = new ColumnModel();        for(int i=0; i<35 ; i++)        {                columnmodel.？？？？？？？  =  i.ToString();问题：这里的属性名应该如何指定？？？             属性名也不能拼接字符串啊，怎么办？？？        }        columnmodellists.Add(columnmodel);如何这样循环赋值？？？

Answer 1

本帖最后由 caozhy 于 2012-08-01 14:33:32 编辑

  

Answer 2

var entityProperties = typeof(ColumnModel).GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);
foreach (var info in entityProperties)
{
  info.SetValue(xxx,null);
}SetValue自己查MSDN

Answer 3

本帖最后由 caozhy 于 2012-08-01 14:37:20 编辑

  

Answer 4

谢谢，但是提示了错误。错误信息如下：“对象与目标类型不匹配。”
改写后的代码如下：      List<ColumnModel> columnmodellists = new List<ColumnModel>();
                columnmodellists.Clear();
                foreach (var v in result)
                {
                    ColumnModel columnmodel = new ColumnModel();
                    columnmodel.Column0 = v.DpTypeName.ToString();
                    //
                    var entityProperties = typeof(ColumnModel).GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);
                    int col_int = 1;                    foreach (var va in v.DpDatasArry)
                    {
                        string colname = "Column" + col_int;
                        entityProperties[col_int].SetValue(colname, va.ToString(), null);问题：这一句提示错误“对象与目标类型不匹配。”，怎么回事？？？  应该怎样改？？？

                    }
                    columnmodellists.Add(columnmodel);
                }    

Answer 5

谢谢您的提示，查了一下MSDN，问题解决了。非常感激  foreach (var va in v.DpDatasArry)
                    {
                        string colname = "Column" + col_int;                        var colProperties = typeof(ColumnModel).GetProperty(colname);                        colProperties.SetValue(columnmodel, va.ToString(), null);                        col_int++;
                    }“GetProperty”和“GetProperties”这两个方法就是基于反射机制的吗？？？

Answer 6

这么属性,还不搞成一个List<String> ColumnList属性

Answer 7

该方法用于“Silverlight”中“DataGrid”的列绑定，List<String> ColumnList属性能绑定到列吗？？？

Answer 8

给你一段代码，以前一个特殊项目的时候写的 public object CallByName(object ObjectRef, string ProcName, Easyteam.General.CallType callType, object[] Args)
            {
                    switch (callType)
                    {
                        case Easyteam.General.CallType.Method:
                            MethodInfo objMI;
                            objMI = ObjectRef.GetType().GetMethod(ProcName);
                            if (objMI == null)
                            {
                                return null;
                            }
                            return objMI.Invoke(ObjectRef, Args);                        case Easyteam.General.CallType.Set:
                            PropertyInfo objProperty;
                            objProperty = ObjectRef.GetType().GetProperty(ProcName);
                            if (objProperty == null)
                            {
                                FieldInfo field = ObjectRef.GetType().GetField(ProcName);
                                if (field == null)
                                {
                                    return null;
                                }
                                field.SetValue(ObjectRef, Args[0]);
                                return null;
                            }
                            objProperty.SetValue(ObjectRef, Args[0], null);
                            break;
                        case Easyteam.General.CallType.Get:
                            objProperty = ObjectRef.GetType().GetProperty(ProcName);
                            if (objProperty == null)
                            {
                                FieldInfo field = ObjectRef.GetType().GetField(ProcName);
                                if (field == null)
                                {
                                    return null;
                                }
                                return field.GetValue(ObjectRef);                            }
                            return objProperty.GetValue(ObjectRef, null);                        default:
                            break;
                    }
                }
                               return null;
            }

Answer 9

数组不能作实体集绑定到“DataGrid”的列啊

Answer 10

明白了
如果使用数组绑定到DataGrid后,会变成行,那不是行了

Answer 11

其实这种情况下还是把东西转换成可绑定的datatab然后操作比较好。