Silverlight模拟鼠标双击事件

DoubleClickHelper.cs

using System;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Ink;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using System.Windows.Threading;



namespace SGSGHome.Views.Sys

{

    /// <summary>

    /// Double Click Event

    /// </summary>

    public class DoubleClickHelper

    {

        private DispatcherTimer timer;

        private FrameworkElement currentFrameworkElement;

        public event EventHandler<DoubleClickEventArgs> OnDoubleClick;



        public DoubleClickHelper()

        {

            if (timer == null)

            {

                timer = new DispatcherTimer();

                timer.Interval = TimeSpan.FromMilliseconds(300);

                timer.Tick += new EventHandler(timer_Tick);

            }

        }



        public void SendMessage(FrameworkElement fe)

        {

            if (fe == null)

            {

                return;

            }



            if (timer.IsEnabled == false)

            {

                timer.Start();

            }



            if (!fe.Equals(currentFrameworkElement))

            {

                fe.Tag = 1;

            }

            else

            {

                fe.Tag = 2;

            }



            currentFrameworkElement = fe;

        }



        void timer_Tick(object sender, EventArgs e)

        {

            if (timer.IsEnabled == true)

            {

                timer.Stop();

            }



            if ((int)currentFrameworkElement.Tag == 2)

            {

                OnDoubleClick(null, new DoubleClickEventArgs(currentFrameworkElement));

            }



            currentFrameworkElement = null;

        }

    }



    public class DoubleClickEventArgs : EventArgs

    {

        private FrameworkElement currentFrameworkElement;



        public FrameworkElement CurrentFrameworkElement

        {

            get { return currentFrameworkElement; }

            set { currentFrameworkElement = value; }

        }



        public DoubleClickEventArgs(FrameworkElement fe)

        {

            currentFrameworkElement = fe;

        }

    }



    public static class UIElementExtensions

    {

        public static T ParentOfType<T>(this UIElement element) where T : DependencyObject

        {

            if (element == null)

            {

                return default(T);

            }

            DependencyObject parent = VisualTreeHelper.GetParent(element);

            while ((parent != null) && !(parent is T))

            {

                parent = VisualTreeHelper.GetParent(parent);

            }

            return (T)parent;

        }

    }

}

UserInRole.xaml

<controls:ChildWindow x:Class="SGSGHome.Views.Sys.UserInRole"

           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 

           xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 

           xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls"

           Width="500" Height="400" 

           Title="角色用户">

    <Grid x:Name="LayoutRoot" Margin="2">

        <Grid.RowDefinitions>

            <RowDefinition />

            <RowDefinition Height="Auto" />

        </Grid.RowDefinitions>

        <Grid.ColumnDefinitions>

            <ColumnDefinition Width="*"/>

            <ColumnDefinition Width="*"/>

        </Grid.ColumnDefinitions>

        <ListBox Name="lbUserNotInRole" Grid.Row="0" Grid.Column="0" Margin="2" SelectionMode="Single" MouseLeftButtonUp="lbUserNotInRole_MouseLeftButtonUp"></ListBox>

        <ListBox Name="lbUserInRole" Grid.Row="0" Grid.Column="1" Margin="2" SelectionMode="Single" MouseLeftButtonUp="lbUserInRole_MouseLeftButtonUp"></ListBox>

        <Button x:Name="CancelButton" Content="取消" Click="CancelButton_Click" Width="75" Height="23" HorizontalAlignment="Right" Margin="0,12,0,0" Grid.Row="1" Grid.ColumnSpan="2" />

        <Button x:Name="OKButton" Content="确定" Click="OKButton_Click" Width="75" Height="23" HorizontalAlignment="Right" Margin="0,12,79,0" Grid.Row="1" Grid.ColumnSpan="2" />

    </Grid>

</controls:ChildWindow>

UserInRole.xaml.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;



namespace SGSGHome.Views.Sys

{

    public partial class UserInRole : ChildWindow

    {

        CoreService.CoreServiceClient client;

        public long RoleID { get; set; }

        DoubleClickHelper lbUserNotInRoleEvent;

        DoubleClickHelper lbUserInRoleEvent;

        public UserInRole()

        {

            InitializeComponent();

            this.Loaded += new RoutedEventHandler(UserInRole_Loaded);

        }



        void UserInRole_Loaded(object sender, RoutedEventArgs e)

        {

            //自定义双击事件

            lbUserInRoleEvent = new DoubleClickHelper();

            lbUserNotInRoleEvent = new DoubleClickHelper();

            lbUserInRoleEvent.OnDoubleClick += new EventHandler<DoubleClickEventArgs>(lbUserInRoleEvent_OnDoubleClick);

            lbUserNotInRoleEvent.OnDoubleClick += new EventHandler<DoubleClickEventArgs>(lbUserNotInRoleEvent_OnDoubleClick);



            client = new CoreService.CoreServiceClient();

            client.GetUserInRoleCompleted += new EventHandler<CoreService.GetUserInRoleCompletedEventArgs>(client_GetUserInRoleCompleted);

            client.GetUserNotInRoleCompleted += new EventHandler<CoreService.GetUserNotInRoleCompletedEventArgs>(client_GetUserNotInRoleCompleted);

            client.AddUserToRoleCompleted += new EventHandler<CoreService.AddUserToRoleCompletedEventArgs>(client_AddUserToRoleCompleted);

            client.DeleteUserFromRoleCompleted += new EventHandler<CoreService.DeleteUserFromRoleCompletedEventArgs>(client_DeleteUserFromRoleCompleted);



            client.GetUserInRoleAsync(this.RoleID);

            client.GetUserNotInRoleAsync(this.RoleID);

        }



        void lbUserNotInRoleEvent_OnDoubleClick(object sender, DoubleClickEventArgs e)

        {

            var clickItem = e.CurrentFrameworkElement as ListBoxItem;

            var dataItem = clickItem.Content as CoreService.sp_UserNotInRole_Result;



            client.AddUserToRoleAsync(dataItem.SamAccountName, this.RoleID);

        }



        void lbUserInRoleEvent_OnDoubleClick(object sender, DoubleClickEventArgs e)

        {

            var clickItem = e.CurrentFrameworkElement as ListBoxItem;

            var dataItem = clickItem.Content as CoreService.sp_UserInRole_Result;



            client.DeleteUserFromRoleAsync(dataItem.SamAccountName, this.RoleID);

        }



        void client_DeleteUserFromRoleCompleted(object sender, CoreService.DeleteUserFromRoleCompletedEventArgs e)

        {

            client.GetUserInRoleAsync(this.RoleID);

            client.GetUserNotInRoleAsync(this.RoleID);

        }



        void client_AddUserToRoleCompleted(object sender, CoreService.AddUserToRoleCompletedEventArgs e)

        {

            client.GetUserInRoleAsync(this.RoleID);

            client.GetUserNotInRoleAsync(this.RoleID);

        }



        void client_GetUserNotInRoleCompleted(object sender, CoreService.GetUserNotInRoleCompletedEventArgs e)

        {

            lbUserNotInRole.ItemsSource = e.Result;

            lbUserNotInRole.DisplayMemberPath = "DisplayName";

            lbUserNotInRole.SelectedValuePath = "SamAccountName";

        }



        void client_GetUserInRoleCompleted(object sender, CoreService.GetUserInRoleCompletedEventArgs e)

        {

            lbUserInRole.ItemsSource = e.Result;

            lbUserInRole.DisplayMemberPath = "DisplayName";

            lbUserInRole.SelectedValuePath = "SamAccountName";

        }



        private void OKButton_Click(object sender, RoutedEventArgs e)

        {

            this.DialogResult = true;

        }



        private void CancelButton_Click(object sender, RoutedEventArgs e)

        {

            this.DialogResult = false;

        }



        private void lbUserNotInRole_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)

        {

            //添加用户到角色

            var fe = e.OriginalSource as FrameworkElement;

            lbUserNotInRoleEvent.SendMessage(fe.ParentOfType<ListBoxItem>());

        }



        private void lbUserInRole_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)

        {

            //从角色移除用户

            var fe = e.OriginalSource as FrameworkElement;

            lbUserInRoleEvent.SendMessage(fe.ParentOfType<ListBoxItem>());

        }

    }

}