WPF Demo18 Routed Events

Using System.windows;namespace routed event 2{public    class Student    {        ////declares and defines routed events        //public static readonly RoutedEvent namechangedevent =        //    eventmanager.registerroutedevent ("namechanged",        //    Routingstrategy.bubble,        //    typeof (Routedeventhandler),         //    typeof (Student));        private int id;        public int ID        {            get {return Id;}            set {id = value;}        }        private string name;        public string name        {            get {return Name;}            set {name = value;}}}}    

<Windowx:class= "routed event 2." MainWindow "xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"Title= "MainWindow"Height= " the"Width= "525">    <Gridx:name= "Testgrid">        <Buttonx:name= "Btntest"Content= "OK"Width= "a"Height= " the"FontSize= "+"Click= "btnTest_Click"/>    </Grid></Window>

Using System.windows;namespace routed event 2{///<summary>//MainWindow.xaml interactive logic///</summary> Publi            C Partial class Mainwindow:window {//Declare and define routed events public static readonly RoutedEvent namechangedevent = Eventmanager.registerroutedevent ("namechanged", Routingstrategy.bubble, typeof (RoutedEvent        Handler), typeof (MainWindow));            Public MainWindow () {InitializeComponent ();        Adds a routed event listener This.testGrid.AddHandler (namechangedevent, New Routedeventhandler (Studentnamechangeevent)) to the grid; } private void btnTest_Click (object sender, RoutedEventArgs e) {Student stu = new Student (            {Id = 1, Name = "name001"}; Stu.            Name = "name007";            Prepares the event message and sends the routed event RoutedEventArgs arg = new RoutedEventArgs (namechangedevent, Stu); RaiseEvent for triggering routed events this. btntest.raiseevent (ARG);  } public void Studentnamechangeevent (object sender, RoutedEventArgs e) {MessageBox.Show ("id==" + (E.originalsource as Student). Id.tostring () + "\ n" + "name==" + (E.originalsource as Student).        Name.tostring ()); }    }}

Example two:

<Windowx:class= "routed event 3." MainWindow "xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"Title= "MainWindow"Height= " the"Width= "525">    <Gridx:name= "Testgrid">        <Buttonx:name= "Btntest"Content= "OK"Width= "a"Height= " the"FontSize= "+"Click= "btnTest_Click"/>    </Grid></Window>

Using System.windows;namespace routed event 3{public class Student {//Declare and define routed events public static readonly Routed Event namechangedevent = eventmanager.registerroutedevent ("NameChange", Routingstrategy.bubble,typeof (RoutedEve        Nthandler), typeof (Student));            Add a route listener public static void Addnamechangedhandler (DependencyObject d,routedeventhandler h) for interface elements {            UIElement e = d as UIElement;        if (E! = null) E.addhandler (student.namechangedevent, h);            }//Remove listen public static void Removenamechangedhandler (DependencyObject D, Routedeventhandler h) {            UIElement e = d as UIElement;        if (E! = null) E.removehandler (student.namechangedevent, h);        } private int id;            public int ID {get {return Id;}        set {id = value;}        } private string name;            public string Name {get {return Name;} set {name = value;}}}}using System.windows;namespace routed event 3{//<summary>///MainWindow.xaml interactive logic///</summ Ary> public partial class Mainwindow:window {public MainWindow () {Initializecomponen            T ();        Add the routed event listener Student.addnamechangedhandler (this.testgrid,new Routedeventhandler (namechangedevent)) for the outer grid; } public void Namechangedevent (Object Sender,routedeventargs e) {MessageBox.Show ("id==" + (E. OriginalSource as Student). Id.tostring () + "\ n" + "name==" + (E.originalsource as Student).        Name.tostring ());            private void btnTest_Click (object sender, RoutedEventArgs e) {Student stu = new Student ()            {Id = 1, Name = "001"}; Stu.            Name = "002";            Prepares the event message and sends the routed event RoutedEventArgs arg = new RoutedEventArgs (student.namechangedevent, Stu); This.Btntest.raiseevent (ARG); }    }}

WPF Demo18 Routed Events