Question

我正在把WinForms项目的一部分迁移到WPF。

我想将现有的 WinForms 用户控制器添加到 WPF 表格中。 WinForms 用户控制器被称为“ TicketPrinter ”, 并且与 WPF 表格一样, 并生活在同一个项目中。

我的Xaml里有一条线:

xmlns:Printers="clr-namespace:Project.UserControls.Printers"

然后我用它来做我的Xaml

        <WindowsFormsHost Height="430" HorizontalAlignment="Left" Margin="468,12,0,0" Name="windowsFormsHost1" VerticalAlignment="Top" Width="324">
            <Printers:TicketPrinter Printers:Name="ZapTicketPrinter">
            </Printers:TicketPrinter>
        </WindowsFormsHost> 
    </Grid>
</Window>

当我运行项目时, 用户控制会像预期的那样出现在表格上。

但当我进入Xaml.cs文件背后的代码并尝试访问“ZapTicketPrinter”时,它无法作为参考。

或(或)

我尝试使用 ZapTicketPrinter, 但它不被识别。

我还尝试了以下做法:

TicketPrinter ticketPrinter = this.FindName("ZapTicketPrinter") as TicketPrinter;

无效

What am I missing? How do I reference the name in my code?

Answer 1

提供 x: Name 代替打印机:name

<WindowsFormsHost>
    <Printers:TicketPrinter x:Name="ZapTicketPrinter"/>
</WindowsFormsHost>

MSDN 样本

Using code behind
~~http://msdn.microsoft.com/en-us/library/ms751761.aspx~~
Walkthrough: Hosting a Windows Forms Control in WPF

Using xaml
~~http://msdn.microsoft.com/en-us/library/ms742875.aspx~~
Walkthrough: Hosting a Windows Forms Control in WPF by Using XAML

Answer 2

尝试使用以下代码 :

private void LoadWFUserControl() 
{
    // Initialize a Host Control which allows hosting a windows form control on WPF. Ensure that the WindowsFormIntegration Reference is present.
    System.Windows.Forms.Integration.WindowsFormsHost host =
        new System.Windows.Forms.Integration.WindowsFormsHost();

    // Create an object of your User control.
    MyWebcam uc_webcam = new MyWebcam();

    // Assign MyWebcam control as the host control s child.
    host.Child = uc_webcam;

    // Add the interop host control to the Grid control s collection of child controls. Make sure to rename grid1 to appr
    this.grid1.Children.Add(host);
}

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