WPF 中如何使用第三方控件 ，可使用WindowsFormsHost 類

容許在 WPF 頁面上承載 Windows Forms控件的元素。

命名空間：   System.Windows.Forms.Integration

程序集：   WindowsFormsIntegration（在 WindowsFormsIntegration.dll 中） 用於 XAML 的 XMLNS：http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

 

add: http://msdn.microsoft.com/zh-cn/library/system.windows.forms.integration.windowsformshost

若是要引用的話

<Window x:Class="Selection.Window1"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms"     Title="Dates" Height="314" Width="373">     <Grid>     <Label HorizontalAlignment="Left" Margin="20,25,0,0" Name="label1" Width="35.63" Height="23.2766666666667" VerticalAlignment="Top">First</Label>     <Label Height="23.2766666666667" HorizontalAlignment="Left" Margin="20,56,0,0" Name="label2" VerticalAlignment="Top" Width="52.63">Second</Label>     <WindowsFormsHost Name="hostFirst" Margin="85,25,18,0" Height="23.2766666666667" VerticalAlignment="Top">       <wf:DateTimePicker Name="first"/>     </WindowsFormsHost>     <WindowsFormsHost Name="hostSecond" Margin="85,56,18,0" Height="23.2766666666667" VerticalAlignment="Top">       <wf:DateTimePicker Name="second"/>//文本框裏是日期     </WindowsFormsHost>     <Button Height="23" HorizontalAlignment="Left" Margin="20,100,0,0" Name="compare" VerticalAlignment="Top" Width="75" Click="compareClick">Compare</Button>     <TextBox Margin="20,131,104,20" Name="info" TextWrapping="WrapWithOverflow" AcceptsReturn="False" IsReadOnly="True" />     <Button Height="22" HorizontalAlignment="Right" Margin="0,0,18,20" Name="quit" VerticalAlignment="Bottom" Width="75" Click="quitClick">Quit</Button>   </Grid> </Window>

後臺C#

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 System.Windows.Forms;

namespace Selection {   

  /// <summary>   

  /// Interaction logic for Window1.xaml     /

// </summary>
    public partial class Window1 : Window     {      

   private DateTimePicker first;        

private DateTimePicker second;
        public Window1()         {      

       InitializeComponent();

//

Child

獲取或設置由 WindowsFormsHost 元素承載的子控件。

            first = hostFirst.Child as DateTimePicker;        

     second = hostSecond.Child as DateTimePicker;         }
        private void quitClick(object sender, RoutedEventArgs e)         {         

    this.Close();     

    }
        private void compareClick(object sender, RoutedEventArgs e)         {       

      int diff = dateCompare(first.Value, second.Value);       

      info.Text = "";            

show("first == second", diff == 0);          

   show("first != second", diff != 0);          

   show("first <  second", diff < 0);            

show("first <= second", diff <= 0);           

  show("first >  second", diff > 0);           

  show("first >= second", diff >= 0);         }
        private void show(string exp, bool result)         {       

      info.Text += exp;        

     info.Text += " : " + result.ToString();      

       info.Text += "\r\n";

 

 

 //\r 表示：回車符(ACSII：13 或0x0d)，就是咱們常說的硬回車。          

  //  \n 表示：換行(ACSII：10 或0x0a)，就是咱們常說的軟回車。    

         //\n，比如你在DreamWeaver裏作一個網頁，在源代碼裏按一下回車，是給源代碼換行。
        }
        private int dateCompare(DateTime leftHandSide, DateTime rightHandSide)         {      

       // TO DO            

return 42;   

      }   

  }

}

 

 

WPF Windows Forms integration           

 

 

在wpf程序中整合windows form：

1.在references中添加WindowsFormsIntegration和System.Windows.Forms。

2.在xaml中使用的時候要寫清楚名字空間，能夠把這兩個ns定義出來。

 下面兩句是重點，wpf書寫的時候必定要注意引用

xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms"

xmlns:wfi="clr-namespace:System.Windows.Forms.Integration;assembly=WindowsFormsIntegration"

插入WindowsFormsControl：

<wfi:WindowsFormsHost>             <wf:DateTimePicker/> </wfi:WindowsFormsHost>

 

看到Windows.Forms下面也有Button控件（廢話），因而想知道這個Button和WPF一般用的System.Windows.Controls.Button有什麼不一樣。

看了看二者的繼承體系：

System.Windows.Controls域中:  Button<ButtonBase<ContentControl<Control

System.Windows.Forms域:         Button<ButtonBase<Control

看似差很少，其實他們徹底存在於兩個不一樣的空間，沒有一點聯繫。

兩個Button類裏定義的內容也不盡相同，Forms.Button看上去內容豐富一些，發現裏面有DoubleClick這個event，可是試了試並不起做用，換到windows form 程序下仍然不起做用。（Visual Studio的property界面上看不到這個事件，可是能夠在代碼裏本身加event handler，雖然加了也白加）。Controls.Button裏雖然沒有DoubleClick，可是MouseDoubleClick是work的。而Forms.Button彷佛就只能觸發Click事件。

<Window x:Class="WpfApplication1.Window1"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     Title="Window1" Height="300" Width="300">  

   <Grid xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms"        

   xmlns:wfi="clr-namespace:System.Windows.Forms.Integration;assembly=WindowsFormsIntegration"           >   

      <Grid.RowDefinitions>            

<RowDefinition Height="*"/>            

<RowDefinition Height="*"/>        

</Grid.RowDefinitions>   

      <Button Grid.Row="1" MouseDoubleClick="Button_MouseDoubleClick">button</Button>        

<wfi:WindowsFormsHost Grid.Row="0">            

<wf:Button MouseDoubleClick="Button_MouseDoubleClick"/>     

    </wfi:WindowsFormsHost>     </Grid> </Window>

 

這兩個事件對應的event類型也不同，一個是System.Windows.Input.MouseButtonEventHandler，一個是System.Windows.Forms.MouseEventHandler，因此對應的event handler的函數的參數也不同，一個是private void Button_MouseDoubleClick(object sender, MouseButtonEventArgs e)，一個是private void Button_MouseDoubleClick(object sender, System.Windows.Forms.MouseEventArgs e)，所以兩個event handler函數名能夠相同。