问题：
需要动态为WPF中的DataGrid添加列，并动态绑定相应数据.（此处仅实现动态属性的添加和使用，关于动态方法的添加和使用详见推荐阅读）
实现关键点：
目标类继承DynamicObject，添加动态属性集合，并重写方法TrySetMember()和TryGetMember()
public void BtnQuery()
{
var view = this.GetView() as MainScreenView;
if (view != null)
{
view.dgdNurseScheduleStatistics.Columns.Clear();
var scheduleClassList = Connectors.NurseScheduleStatisticsConnector.GetInstance.FindScheduleClassList().OrderBy(item => item.Id); if (scheduleClassList != null)
{
List<NurseScheduleStatisticsModel> modelList = new List<NurseScheduleStatisticsModel>(); for (int i = 0; i < 10; i++)
{
dynamic model = new NurseScheduleStatisticsModel();
model.col0 = i;
model.col1 = i;
model.col2 = i;
model.col3 = i;
model.col4 = i;
modelList.Add(model);
} for (int i = 0; i < 5; i++)
{
DataGridTextColumn column = new DataGridTextColumn();
column.Header = "col" + i;
column.Binding = new Binding("col" + i); view.dgdNurseScheduleStatistics.Columns.Add(column);
}
view.dgdNurseScheduleStatistics.ItemsSource = modelList;
}
}
}
public class NurseScheduleStatisticsModel : DynamicObject
{
public string EmpName { get; set; }
public string TotalHour { get; set; }
public string TotalWork { get; set; } Dictionary<string, object> Properties = new Dictionary<string, object>(); public override bool TrySetMember(SetMemberBinder binder, object value)
{
if (!Properties.Keys.Contains(binder.Name))
{
//在此可以做一些小动作
//if (binder.Name == "Col")
// Properties.Add(binder.Name + (Properties.Count), value.ToString());
//else
// Properties.Add(binder.Name, value.ToString());
Properties.Add(binder.Name, value.ToString());
}
return true;
}
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
return Properties.TryGetValue(binder.Name, out result);
}
}
效果图：
推荐阅读：http://www.cnblogs.com/serviceboy/archive/2010/04/16/1713688.html
http://msdn.microsoft.com/zh-cn/library/system.dynamic.dynamicobject.trysetmember(v=vs.110).aspx