为什么要"this.DragMove()"?举行其他一些“事件"吗?尚未解决！ [英] Why "this.DragMove()" hold up some of other "events"? Not Solved Yet!

问题描述

大家好，

当我使用"this.DragMove();"移动窗口WPF时方法放到桌面空间周围，它没有发生"Body_MouseLeftButtonUp"事件，为什么?

注意:主体是ModelUIElement3D，并且某些窗口属性设置为Background ="{x:Null}"，AllowsTransparency ="True"和WindowStyle ="None".

Hi everybody,

When I moving my window WPF with "this.DragMove();" method into around desktop space, after it "Body_MouseLeftButtonUp" event don''t occur, why?

Notice: The Body is a ModelUIElement3D and some window properties set to Background="{x:Null}", AllowsTransparency="True" and WindowStyle="None".

public partial class myWindow: Window
{
    public myWindow()
    {
        this.InitializeComponent();

        Body3D.MouseLeftButtonDown+=new MouseButtonEventHandler(Body3D_MouseLeftButtonDown);
        Body3D.MouseLeftButtonUp+=new MouseButtonEventHandler(Body3D_MouseLeftButtonUp);
    }

    private void Body_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
    {
        this.DragMove();
    }

    private void Body3D_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
    {
        //After 'Body_MouseLeftButtonDown', not occur this event!
    }
}

任何帮助请...

在此先感谢.

Any help pls...

Thanks in advance.

推荐答案

该事件不会发生，因为DragMove是释放按钮之前的阻塞方法.它不太可能在另一个线程上工作.

如果需要非阻塞的DragMove，我个人会使用MouseLeftButtonDown MouseMove MouseLeftButtonUp事件来滚动自己.

The event doesn''t occur because DragMove is a blocking method until the button is released. Unlikely it''s going to work on another thread.

I personally would roll my own using the MouseLeftButtonDown MouseMove MouseLeftButtonUp events if I needed a non-blocking DragMove.

在设置事件处理程序时，我看不到任何意义.无论如何，在您的Window ystem.Windows.Window中，编写重载方法要好得多.

我检查了以下内容是否正常工作:

I cannot see any sense in setting up event handlers. In your Windowystem.Windows.Window anyway, so it''s much better to write overloaded methods.

I checked up that the following works correctly:

public partial class MyWindow : Window {
    public MyWindow() {
        InitializeComponent();
        // you could add anonymous event handlers here but there is no need to do it
        // for Window events, see below
    }

    protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e) {
        base.OnMouseLeftButtonDown(e);
        isMouseDown = true;
        this.DragMove();
    }
    protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e) {
        base.OnMouseLeftButtonUp(e);
        isMouseDown = false;
    }

    bool isMouseDown; //do you use it?

} //class MyWindow

我看不出您是否使用isMouseDown进行任何操作?您是否真的需要此状态，因为不需要拖动它?希望你能做到.

祝你好运，

—SA

I don''t see if you use isMouseDown for anything? Do you really need this status for something else, because for dragging it''s not needed? I hope you do.

Good luck,

—SA

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