在WPF中使用WinForm控件方法

下面以在Wpf中添加ZedGraph（用于创建任意数据的二维线型、条型、饼型图表的一个开源类库）控件，说明在WPF中使用Winform控件的方法。

1、      首先添加对如下两个dll文件的引用：WindowsFormsIntegration.dll，System.Windows.Forms.dll。

2、      由于要用到ZedGraph控件，所以也要添加对ZedGraph.dll的引用。

3、      在要使用WinForm控件的WPF窗体的XAML文件中添加如下内容（选中部分）：

 

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

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

xmlns:zedgraph="clr-namespace:ZedGraph;assembly=ZedGraph"

4、       在WPF的容器控件内如Grid内首先要添加WinForm控件的宿主容器，用于衔接WPF和WinForm，

对应XAML如下：

<Grid>

        <wfi:WindowsFormsHost Width="300" HorizontalAlignment="Right">

            <wf:Label x:Name="lblName" Text="winForm控件在此” />

        </wfi:WindowsFormsHost>

        <wfi:WindowsFormsHost>

            <wf:Button x:Name="nnn" Text="确定”/>

        </wfi:WindowsFormsHost>

        <wfi:WindowsFormsHost>

            <zedgraph:ZedGraphControl x:Name="zedGraphControl" />

        </wfi:WindowsFormsHost>

        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="10,10,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />

    </Grid>

说明：<wfi:WindowsFormsHost></wfi:WindowsFormsHost>即为WinForm控件的宿主容器，每一个宿主容器只能放一个WinForm控件，如下例，放了三个WinForm控件，分别放在三个宿主容器里面，该容器可以设置属性来调整大小和布局。

注意：如上我添加的WinForm控件如在指定其Name时，必须加前缀x:，如添加Lable时<wf:Label x:Name="lblName" Text="我是WPF中的WinForm控件” />，否则后台代码无法访问。

5、       如果要在WPF后台代码中访问上面的Lable，可直接像在WinForm中使用一样。如在点击某一按钮时改变Lable内容，代码如下:lblName.Text=”内容已改变”;

6、       以使用WinForm控件ZedGraph绘制曲线为例，说明后台用法：

在后台用Using添加对System.Windows.Forms和ZedGraph和System.Drawing命名空间的引用，完整后台代码如下：

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;

using ZedGraph;

using System.Drawing;

 

namespace ZedGraphAtWpf2

{

    /// <summary>

    /// MainWindow.xaml 的交互逻辑

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

        }

 

        private void button1_Click(object sender, RoutedEventArgs e)

        {

            lblName.Text =”我是WinForm控件”;

        }

 

        private void Window_Loaded(object sender, RoutedEventArgs e)

        {

            ZedGraph.GraphPane myPane = zedGraphControl.GraphPane;

 

            myPane.Title.Text = "My Test Graph/n(For CodeProject Sample)";

            myPane.XAxis.Title.Text = "My X Axis";

            myPane.YAxis.Title.Text = "My Y Axis";

 

            PointPairList list1 = new PointPairList();

            PointPairList list2 = new PointPairList();

            for (int i = 0; i < 36; i++)

            {

                double x = (double)i + 5;

                double y1 = 1.5 + Math.Sin((double)i * 0.2);

                double y2 = 3.0 * (1.5 + Math.Sin((double)i * 0.2));

                list1.Add(x, y1);

                list2.Add(x, y2);

            }

 

            // Generate a red curve with diamond

            // symbols, and "Porsche" in the legend

            LineItem myCurve = myPane.AddCurve("Porsche",

                list1, System.Drawing.Color.Red, SymbolType.Diamond);

 

            // Generate a blue curve with circle

            // symbols, and "Piper" in the legend

            LineItem myCurve2 = myPane.AddCurve("Piper",

                list2, System.Drawing.Color.Blue, SymbolType.Circle);

 

            zedGraphControl.AxisChange();

        }

    }

}

完整XAML如下：

<Window x:Class="ZedGraphAtWpf2.MainWindow"

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

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

        xmlns:zedgraph="clr-namespace:ZedGraph;assembly=ZedGraph"

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

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

        Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded">

    <Grid>

        <wfi:WindowsFormsHost Width="300" HorizontalAlignment="Right">

            <wf:Label x:Name="lblName" Text="WinForm控件在此” />

        </wfi:WindowsFormsHost>

        <wfi:WindowsFormsHost>

            <wf:Button x:Name="nnn" Text="确定” />

        </wfi:WindowsFormsHost>

        <wfi:WindowsFormsHost>

            <zedgraph:ZedGraphControl x:Name="zedGraphControl" />

        </wfi:WindowsFormsHost>

        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="10,10,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />

    </Grid>

</Window>