WPF 动态生成对象属性 （dynamic）

标签：detail   mss   模拟   schedule   EDA   包含   params   try   对象   

项目中列行的数据 都需要动态生成 所以考虑到对象绑定  可需要一个动态生成属性的意思

缺点 加载速度会慢 很明显的慢

解决办法 尽量减轻动态属性的量~

参考文章

https://www.cnblogs.com/maomiyouai/p/3594132.html

https://www.cnblogs.com/dingli/archive/2012/06/14/2548687.html（这个没看明白 但是冥冥中让我觉得 收藏一下以后可能会用）

代码

属性类   想研究明白的 看参考文章

 public class NurseScheduleStatisticsModel : DynamicObject




    {



 



 



        Dictionarystring, object> Properties = new Dictionarystring, object>();



 



        public override bool TrySetMember(SetMemberBinder binder, object value)




        {



            if (!Properties.Keys.Contains(binder.Name))



            {



            



                Properties.Add(binder.Name, value.ToString());



            }



            return true;



        }



        public override bool TryGetMember(GetMemberBinder binder, out object result)




        {



            return Properties.TryGetValue(binder.Name, out result);



        }



    }

生成临时数据

       private ObservableCollectionGetNameDataLlist()




        {



     



            dynamic model = new NurseScheduleStatisticsModel();



            model.Name = "市川 賞子";



            model.Class_ = "B";



            model.JOb = "リーダー";



            model.Num = "1";



            model.Num1 = "r1";



            model.Num2 = "R1";



            model.Num3 = "r1";



            model.Num4 = "r1";



            model.Num5 = "T1";



            dynamic model2 = new NurseScheduleStatisticsModel();



            model2.Name = "石田";



            model2.Class_ = "B";



            model2.JOb = "リーダー";



            model2.Num = "2";



            model2.Num1 = "r2";



            model2.Num2 = "R2";



            model2.Num3 = "r3";



            model2.Num4 = "r2";



            model2.Num5 = "T2";



            dynamic model3 = new NurseScheduleStatisticsModel();



            model3.Name = "安达 鮎美";



            model3.Num = "3";



            model3.Class_ = "B";



            model3.JOb = "リーダー";



            model3.Num1 = "r2";



            model3.Num2 = "R3";



            model3.Num3 = "r2";



            model3.Num4 = "r3";



            model3.Num5 = "T3";



        



            modelList.Add(model);



            modelList.Add(model2);



            modelList.Add(model3);



      



 



 



            return modelList;



 



        }

动态增加列和绑定datagrid

dl.Binding = new Binding("Num" + (i + 1) );

这里的bing 绑定的就是对象里的Num1~开始的对象  

      for (int i = 0; i 10; i++)



			{ 



                 DataGridTextColumn dl = new DataGridTextColumn();



                dl.Header=‘num‘+i;



              



                dl.Binding = new Binding("Num" + (i + 1) );



                dataGrid.Columns.Add(dl);



			}



dataGrid.ItemsSource = GetNameDataLlist();

我在项目里 使用一个自定义对象 来包含 dynamic 动态对象 减少不必要的开销

对象 

    public class NameList : INotifyPropertyChanged




    {



        public event PropertyChangedEventHandler PropertyChanged;



 



        public NameList(string name, string jOb, string class_, int num, NurseScheduleStatisticsModel model) { Name = name; Class_ = class_; JOb = jOb; Num = num; Ml = model; }



      



  



        private string name;



 



        public string Name



        {



            get { return name; }



            set




            {



                name = value;



                if (PropertyChanged != null)



                {



                    PropertyChanged(this, new PropertyChangedEventArgs("Name"));



                }



 



            }



        }



        private int num;



 



        public int Num



        {



            get { return num; }



            set




            {



                num = value;



                if (PropertyChanged != null)



                {



                    PropertyChanged(this, new PropertyChangedEventArgs("Num"));



                }



            }



        }



        private string class_;



 



        public string Class_



        {



            get { return class_; }



            set




            {



                class_ = value;



                if (PropertyChanged != null)



                {



                    PropertyChanged(this, new PropertyChangedEventArgs("Class_"));



                }



            }



        }



 



 



 



        private string jOb;



 



        public string JOb



        {



            get { return jOb; }



            set




            {



                jOb = value;



                if (PropertyChanged != null)



                {



                    PropertyChanged(this, new PropertyChangedEventArgs("JOb"));



                }



            }



        }



 



        private NurseScheduleStatisticsModel ml;



 



        public NurseScheduleStatisticsModel Ml



        {



            get { return ml; }



            set { ml = value;



            if (PropertyChanged != null)



            {



                PropertyChanged(this, new PropertyChangedEventArgs("Ml"));



            }



            }



        }



 



  



 



    }

模拟数据

  private ObservableCollectionGetNameDataLlist2()




        {



 



            dynamic model = new NurseScheduleStatisticsModel();



 



            model.Num1 = "r1";



            model.Num2 = "R1";



            model.Num3 = "r1";



            model.Num4 = "r1";



            model.Num5 = "T1";



            dynamic model2 = new NurseScheduleStatisticsModel();



 



            model2.Num1 = "r2";



            model2.Num2 = "R2";



            model2.Num3 = "r3";



            model2.Num4 = "r2";



            model2.Num5 = "T2";



            dynamic model3 = new NurseScheduleStatisticsModel();



 



            model3.Num1 = "r2";



            model3.Num2 = "R3";



            model3.Num3 = "r2";



            model3.Num4 = "r3";



            model3.Num5 = "T3";



 



            //modelList.Add(model);




            //modelList.Add(model2);




            //modelList.Add(model3);




 



            listName.Add(new NameList("市川 賞子", "リーダー", "B", 1, model));



            listName.Add(new NameList("石田", "リーダー", "C", 2, model2));



            listName.Add(new NameList("安达 鮎美", "リーダー", "C", 3, model3));



 



            return listName;



 



        }

绑定动态列

需要在套一层Ml对象来引用

    for (int i = 0; i 


			{ 



                 DataGridTextColumn dl = new DataGridTextColumn();



                dl.Header=LS[i];



              



                dl.Binding = new Binding("Ml.Num" + (i + 1) );



                dataGrid.Columns.Add(dl);



			}



 

就是慢 的有这点数据量就要4秒~6秒 loading加载提示肯定是要有了

希望有人有更好 更成熟的方法



 
WPF 动态生成对象属性 （dynamic）
标签：detail   mss   模拟   schedule   EDA   包含   params   try   对象   
原文地址：https://www.cnblogs.com/lonelyxmas/p/12075403.html