wpf - 移除 AvalonDock 坞站并关闭按钮

Question

我想删除它们，因为这给我带来了很多问题。如果有办法解决它，我会很乐意尝试。
使用它的前几分钟我得到了 3 个不同的异常(exception)，我不知道如何删除那些该死的选项。

固定和取消固定和固定会引发 InvalidOperationException，因为由于对象的当前状态，操作无效。

有时固定和取消固定会打开一个对话框并要求我提供一个文件，我不希望这种情况发生，但它正在发生并引发异常。

我不小心点击了关闭按钮，无法恢复窗口。
这真的很令人沮丧。我相信其他 avalondock 用户也遇到过这个问题。

因为我不想浪费太多时间，所以我要在这里问。
您是如何解决此异常或删除这些按钮的？谢谢。

Answer 1

我和你的问题完全一样。不愿意从实际用户界面中删除图标，我只是用事件处理程序禁用它们

这是我的工作方式:

要删除这些隐藏和自动隐藏命令:

我添加了以下处理程序:

CommandManager.AddPreviewExecutedHandler(this, new ExecutedRoutedEventHandler(this.ContentClosing))

这是什么 ContentClosing好像:

/// <summary>
/// Handler called when user clicked on one of the three buttons in a DockablePane
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ContentClosing(object sender, ExecutedRoutedEventArgs e)
{
    if (e.Command == ApplicationCommands.Close || e.Command == DockablePaneCommands.Close)
    {
        e.Handled = true;
        DockManager source = sender as DockManager;
        if (source.ActiveContent != null)
        {
            source.ActiveContent.Close();
        }
    }
    else if (e.Command == DockablePaneCommands.Hide || e.Command == DockablePaneCommands.ToggleAutoHide)
    {
        e.Handled = true;

}
}

这个处理程序在这里实际上关闭了正确的内容。由于某些原因，有时 AvalonDock将关闭另一个内容，因为它具有焦点(单击十字不会将焦点放在您的内容上，因此它将关闭当前聚焦的内容......)
如您所见，我只是覆盖事件并手动关闭我的组件

不幸的是，这并不涵盖所有情况。我也出于某种原因(你好，有车的 AvalonDock)实际上捕获了关闭按钮的点击，因为有一个边缘情况:如果你删除最后一个组件，你将无法添加一个新组件，因为 AvalonDock将移除最后剩余的面板。此外，如果您关闭 DockableContent里面有很多标签， AvalonDock将关闭所有选项卡，所以我必须实现一些功能来关闭当前选项卡(这更有意义，恕我直言)我必须向添加的每个内容添加一个鼠标按下处理程序以捕获此事件。使用以下技巧，我可以采取一种解决方法来避免此错误:

    /// <summary>
    /// Handler called when a DockableContent state changed.
    /// We need it to define a PreviewMouseDownHandler for each DockablePane
    /// possibly created (which are usually created upon docking a floating window
    /// to a new position) in order to handle single DockableContent closing
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    void NewContent_StateChanged(object sender, RoutedEventArgs e)
    {
        DockableContent source = sender as DockableContent;
        if (source.State == DockableContentState.Docked && source.Parent is DockablePane)
        {
            DockablePane parent = source.Parent as DockablePane;
            parent.PreviewMouseDown -= mouseHandler;
            parent.PreviewMouseDown += mouseHandler;
        }
    }

    /// <summary>
    /// Handler called on mouse down on a DockablePane.
    /// It is designed to detect where did the user click, and 
    /// if he clicked on Close, only the current DockableContent will be closed
    /// (unlike the native behavior which requires us to close the entire DockablePane
    /// upon clicking on Close...)
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    void DockablePaneMouseDown(object sender, MouseButtonEventArgs e)
    {
        DockablePane source = sender as DockablePane;
        if (e.OriginalSource is AvalonDock.ImageEx)
        {
            //User clicked on one of the three icons on the top-right corner of the DockablePane
            if ((e.OriginalSource as AvalonDock.ImageEx).Source.ToString().Contains("PinClose"))
            {
                RemoveFromUI(source.SelectedItem as DockableContent);
                e.Handled = true;
            }
        }
    }

    /// <summary>
    /// Removes a DockableContent from the currently displayed UI
    /// (called when the original DockableItemsSource changed)
    /// </summary>
    /// <param name="content">The content to be removed</param>
    private void RemoveFromUI(DockableContent content)
    {
        if (content == null)
        {
            return;
        }
        DockablePane parent = content.Parent as DockablePane;
        if (this.ActiveContent == parent.SelectedItem)
        {
            this.ActiveContent = null;
        }
        (parent.SelectedItem as DockableContent).Close();
        //// If the current DockablePane is left empty, we ensure to close it
        if (parent.Items.Count == 0)
        {
            //This case is needed if we are trying to remove the last DockablePane from a DockingManager
            //Native behavior will NOT set the Content property if you remove the last DockablePane:
            //it will therefore consider this CLOSED DockablePane as the current ActiveContent,
            //and will try to add new contents in this closed pane, which seems rather disturbing.
            //Here we explicitly set the Content property to null if we are removing the last element,
            //so next time user adds a tab, it will be added as the new Content!
            if (parent == this.Content)
            {
                this.Content = null;
            }
            parent.Close();
            parent.Visibility = Visibility.Hidden;
        }
    }

再一次，对于这么小的事情，这是一项令人难以置信的大工作，但不幸的是，这个 AvalonDock远未准备好生产环境，我不得不调整这些东西以使其工作。

希望它也适用于您，并为自己省去一些我已经为这个问题而烦恼的问题!