windows窗體程序中使用WPF控件 Host WPF Controls in Windows Forms Application

參考http://keyvan.io/host-wpf-controls-in-windows-forms

在windows form appliation中添加wpf空間，需要使用一個ElementHost的容器，接着將創建出來的WPF對象賦值到ElementHost的child屬性中，類似子控件添加到Panel或者Form的controls容器中，可以ElementHost只能對應一個wpf控件，接着將ElementHost添加到父級Controls中。

實現如下：

1. 創建Windows Form Application項目，命名為HostWPFWinForm

2. 接着添加新建項為“用戶控件(WPF)”，命名為MyWPFControl

3. 給剛生成的WPF控件添加lable, textbox 與button，對應的XAML如下:

<UserControl x:Class="HostWPFWinForm.MyWPFControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" Height="37.5" Width="268">
    <Grid Margin="0,0,0,200">
        <Label x:Name="lblInput" Content="Input:" HorizontalAlignment="Left" Height="26" Margin="12,8,0,-34" VerticalAlignment="Top" Width="48"/>
        <TextBox x:Name="tbxInput" HorizontalAlignment="Left" Height="21" Margin="60,12,0,-33" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="120"/>
        <Button Content="Click" HorizontalAlignment="Left" Height="21" Margin="185,13,0,-34" VerticalAlignment="Top" Width="76" Click="Button_Click"/>
    </Grid>
</UserControl>

對應的CS代碼為：

        public MyWPFControl()
        {
            InitializeComponent();
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show(tbxInput.Text);
        }

4. 添加外部DLL庫:windowsformsintegration, system.xaml

5. 修改Form1代碼如下

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.Integration;

namespace HostWPFWinForm
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            
            // Add WPF Control
            MyWPFControl control = new MyWPFControl();
            ElementHost host = new ElementHost();
            host.Top = 0;
            host.Left = 0;
            host.Width = 300;
            host.Height = 40;
            host.Child = control;
            this.Controls.Add(host);
        }
    }
}

6. 編譯並且運行程序，效果圖如下：