WindowsFormsHost1.Child.Can't Focus

Question

在WPF控件中，我有一个通过WindowsFormsHost承载的WinFormUserControl控件。

现在，在WPF控件代码中，我这样做：

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？如何强制将焦点放在WinFormsHost子级上？

windowsFormsHost仍处于隐藏状态时的不同情况

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或者已经可见

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Answer 1

控件是否已启用？如果是这样，您可以尝试使用tabinto method跳转到控件