单击 WindowsFormsHost 内的按钮时关闭 WPF 对话框

Question

我有一个 WPF 对话框，它承载一个 windowsFormHost 控件，具有类似这样的东西

<Window x:Class="WPFSort.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WPFSort"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <WindowsFormsHost HorizontalAlignment="Left" Height="Auto"
                          Margin="87,43,0,0" VerticalAlignment="Top" Width="Auto">
            <local:SimpleWinControl />
        </WindowsFormsHost>

    </Grid>
</Window>

而对于 SimpleWinControl ，它是一个 WinForm 控件。点击button 1时，我要

要关闭的 WPF 对话框

并且数据importantdata要"pass out"到调用WPF对话框的WPF表单？

public partial class SimpleWinControl : UserControl
{
    public SimpleWinControl()
    {
        InitializeComponent();
    }

    public object importantdata;

    private void button1_Click(object sender, EventArgs e)
    {
      //how should I write the close and pass the importantdata out

    }
}

Answer 1

例如，您可以将属性添加到公开 Button 控件的 WinForms 控件：

public partial class SimpleWinControl : UserControl
{
    public SimpleWinControl()
    {
        InitializeComponent();
    }

    public Button TheButton { get { return button1; } }

    ...
}

在您的 XAML 标记中为 WinForms 控件提供一个 x:Name：

<WindowsFormsHost HorizontalAlignment="Left" Height="Auto" Margin="87,43,0,0" VerticalAlignment="Top" Width="Auto">
    <local:SimpleWinControl x:Name="winFormsControl" />
</WindowsFormsHost>

...并在 WPF 对话框 window:

的代码隐藏中连接到 Button 的 Click 事件

public partial class Dialog : Window
{
    public Dialog()
    {
        InitializeComponent();
        winFormsControl.TheButton.Click += (s, e) => this.Close();
    }
}

一旦 ShowDialog 方法 returns:

打开对话框的 window 就可以访问 importantdata 字段

private void ShowDialog_Click(object sender, RoutedEventArgs e)
{
    Dialog d = new Dialog();
    d.ShowDialog();

    object importantData = d.winFormsControl.importantdata;
}

另一种选择可能是从 WinForms 控件引发事件：https://msdn.microsoft.com/en-us/library/5z57dxz2(v=vs.90).aspx

单击 WindowsFormsHost 内的按钮时关闭 WPF 对话框

Close the WPF dialog when one clicks on a button inside the WindowsFormHost

wpf

windowsformshost

winforms