WindowsFormsHost.Child.Can't Focus

Question

在 WPF 控件中，我有一个通过 WindowsFormsHost 托管的 WinFormUserControl 控件

现在，我在 WPF 控制代码中：

void ShowWinFormUserControl() 
{
    ...
    windowsFormsHost1.Visibility = System.Windows.Visibility.Visible;
    bool success;
    success = windowsFormsHost1.Focus();        // true
    success = windowsFormsHost1.Child.Focus();  // false
    success = windowsFormsHost1.Child.CanFocus; // false
    windowsFormsHost1.Select(); // any effect if first display

    // _arretSelection is the windowsFormsHost1.Child
    this._arretSelection.Select();  // any effect if first display
    ...
}

为什么？如何强制关注 WinFormsHost 子项？

windowsFormsHost仍处于隐藏状态时的区别

或已经可见

Answer 1

控制是否启用？如果是这样，您可以尝试使用tabinto method 进入控件