WPF中的ChildWindow----WPF的toolkit使用

Silverlight中有ChildWindow这个东西，上午想起来WPF中是否也有这个东西呢？
其实如果真用代码也是可以实现ChildWindow，可是有没有更便捷的方法呢？我想到了WPF的toolkit，发现新的版本中还真是有这么个控件。首先声明，这里是个控件，这个Silverlight里面的ChildWindow的实现方式不一样，Silverlight中如何实现不再赘述。因为silverlight中的childwindow的固定思维使对这个东西的使用走了弯路，迷惑了好一会，所以分享给大家。

首先需要下载wpftoolkit和Extended WPF Toolkit Binaries。然后在项目中添加对WPFToolkit和WPFToolkit.Extended的引用：

在wpf窗口的<Window 节点中添加对命名空间的引用，加入一行

xmlns:extToolkit="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit.Extended" 

然后在页面中添加一个childwindow控件，

<extToolkit:ChildWindow x:Name="childWindow" Visibility="Hidden" Caption="My Child Window" Width="456" Closed="childWindow_Closed" IsModal="True" Height="253">
            <Grid Margin="10" >               
                <StackPanel Orientation="Horizontal" Margin="8,8,8,0">
                    <StackPanel.Background>
                        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                            <GradientStop Color="#FFF4F8FF" Offset="0"/>
                            <GradientStop Color="White" Offset="1"/>
                        </LinearGradientBrush>
                    </StackPanel.Background>
                    <Button Width="65" Margin="100,76.5,2,0" x:Name="okbtn" Click="okbtn_Click" Content="获取值" Height="40" RenderTransformOrigin="-0.354,0.525" VerticalAlignment="Top" d:LayoutOverrides="Height"/>
                    <Button Width="65" Margin="50,76.5,2,0" x:Name="cancalbtn" Click="cancalbtn_Click" Content="设置值" Height="40" VerticalAlignment="Top" d:LayoutOverrides="Height"/>
                </StackPanel>
            </Grid>
 </extToolkit:ChildWindow>

然后在后台就可以对这个控件进行操作了，

       private void OpenChildWindow_Click(object sender, RoutedEventArgs e)
        {
            childWindow.Visibility = Visibility.Visible;
            childWindow.Show();
        }

现将截图如下：
运行

打开childwindow：

获取label的值：

设置label的值：

子窗口关闭事件：



页面完整代码：

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:extToolkit="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit.Extended"  
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="blogtest.MainWindow"  
        Title="MainWindow" Height="480" Width="640">
    <Grid>
        <Button Content="打开子窗口" Height="40" HorizontalAlignment="Left" Margin="56,75,0,0" x:Name="OpenChildWindow" Click="OpenChildWindow_Click" VerticalAlignment="Top" Width="100" />
        <Label Height="28" HorizontalAlignment="Left" Margin="56,12,0,0" x:Name="label1" VerticalAlignment="Top" Width="273" Content="初始值100" />
        <extToolkit:ChildWindow x:Name="childWindow" Visibility="Hidden" Caption="My Child Window" Width="456" Closed="childWindow_Closed" IsModal="True" Height="253">
            <Grid Margin="10" >               
                <StackPanel Orientation="Horizontal" Margin="8,8,8,0">
                    <StackPanel.Background>
                        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                            <GradientStop Color="#FFF4F8FF" Offset="0"/>
                            <GradientStop Color="White" Offset="1"/>
                        </LinearGradientBrush>
                    </StackPanel.Background>
                    <Button Width="65" Margin="100,76.5,2,0" x:Name="okbtn" Click="okbtn_Click" Content="获取值" Height="40" RenderTransformOrigin="-0.354,0.525" VerticalAlignment="Top" d:LayoutOverrides="Height"/>
                    <Button Width="65" Margin="50,76.5,2,0" x:Name="cancalbtn" Click="cancalbtn_Click" Content="设置值" Height="40" VerticalAlignment="Top" d:LayoutOverrides="Height"/>
                </StackPanel>
            </Grid>
        </extToolkit:ChildWindow>
    </Grid>
</Window>

后台程序完整代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.Windows.Controls;

namespace blogtest
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
       
        public MainWindow()
        {
            InitializeComponent();
        }

        private void OpenChildWindow_Click(object sender, RoutedEventArgs e)
        {
            childWindow.Visibility = Visibility.Visible;
            childWindow.Show();
        }

        private void okbtn_Click(object sender, RoutedEventArgs e)
        {
            System.Windows.MessageBox.Show("获取的到的值为：" + label1.Content);
        }

        private void cancalbtn_Click(object sender, RoutedEventArgs e)
        {
            label1.Content = "值被设置为50";
        }

        private void childWindow_Closed(object sender, EventArgs e)
        {
            System.Windows.MessageBox.Show("ChildWindow关闭了");
        }


    }
}

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