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Moving the title bar will affect the left mouse click event in the diagram (Read 3206 times)

D Full Member Offline I Love MindFusion! Posts: 158 Joined: Mar 16^th, 2020	Moving the title bar will affect the left mouse click event in the diagram Mar 30^th, 2020 at 8:07am	Print Post
	I currently use this code to move the title bar, but it will affect the drag of ShapeNode in Diagram. How can I solve it? private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) { base.OnMouseLeftButtonDown(e); Point position = e.GetPosition(this); if (e.LeftButton == MouseButtonState.Pressed) { if (position.X >= 0 && position.X < this.ActualWidth && position.Y >= 0 && position.Y < this.ActualHeight) { this.DragMove(); } } }


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Lyubo God Member Offline MindFusion team Posts: 511 Joined: Jun 17^th, 2010	Re: Moving the title bar will affect the left mouse click event in the diagram Reply #1 - Mar 30^th, 2020 at 9:58am	Print Post
	Hi, I'm not entirely sure what you're trying to achieve or what exactly your problem is, but if you want to prevent the diagram of receiving the mouse event when a certain criteria of yours is met, you can handle the PreviewMouseLeftButtonDown event instead, and set the MouseButtonEventArgs Handled property to true. That way the diagram won't receive that particular message and dragging of nodes won't occur. Regards, Lyubo MindFusion


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D Full Member Offline I Love MindFusion! Posts: 158 Joined: Mar 16^th, 2020	Re: Moving the title bar will affect the left mouse click event in the diagram Reply #2 - Mar 30^th, 2020 at 10:20am	Print Post
	The menu bar doesn't open after I use it private void Window_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e) { #region � 边框窗体拖动 base.OnMouseLeftButtonDown(e); // 获取� � �相对� �题� �位置 Point position = e.GetPosition(this); // 如果� � �位置在� �题� �内，允许拖动 if (e.LeftButton == MouseButtonState.Pressed) { if (position.X >= 0 && position.X < this.ActualWidth && position.Y >= 0 && position.Y < this.ActualHeight) { this.DragMove(); } } e.Handled = true; #endregion }

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Lyubo God Member Offline MindFusion team Posts: 511 Joined: Jun 17^th, 2010	Re: Moving the title bar will affect the left mouse click event in the diagram Reply #3 - Mar 30^th, 2020 at 10:59am	Print Post
	Hi, You're not supposed to call e.Handled each time the handler is invoked as the event will never reach your menu item. But again, I don't really understand what you're trying to achieve with this, so if you need further help with this, please try to elaborate your issue better. What your code currently tries to do is to drag the whole window not only from the tile strip, but from anywhere within its bounds. Regards, Lyubo MindFusion


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D Full Member Offline I Love MindFusion! Posts: 158 Joined: Mar 16^th, 2020	Re: Moving the title bar will affect the left mouse click event in the diagram Reply #4 - Mar 30^th, 2020 at 11:23am	Print Post
	My requirement is that after clicking the title bar of the window with the left mouse button, the entire window can be dragged without releasing it, but it will not affect the click event of the left mouse button of Diagram. How can I do this?


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Lyubo God Member Offline MindFusion team Posts: 511 Joined: Jun 17^th, 2010	Re: Moving the title bar will affect the left mouse click event in the diagram Reply #5 - Mar 30^th, 2020 at 12:50pm	Print Post
	Hi, The behavior you describe is already existing in the operating system and the WPF framework. It should not require any additional code to achieve. Regards, Lyubo MindFusion


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D Full Member Offline I Love MindFusion! Posts: 158 Joined: Mar 16^th, 2020	Re: Moving the title bar will affect the left mouse click event in the diagram Reply #6 - Mar 30^th, 2020 at 12:59pm	Print Post
	Doesn't work because I set WindowStyle = "None", I just want to drag the title bar without affecting the Diagram.

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Lyubo God Member Offline MindFusion team Posts: 511 Joined: Jun 17^th, 2010	Re: Moving the title bar will affect the left mouse click event in the diagram Reply #7 - Mar 30^th, 2020 at 1:15pm	Print Post
	Hi, Should have started with that . Remove the PreviewMouseLeftButtonDown handler and use your existing MouseLeftButtonDown one, but limit the constraint to the actual height of your title bar / panel, not the entire window. Something like: Code private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) { base.OnMouseLeftButtonDown(e); Point position = e.GetPosition(this); if (e.LeftButton == MouseButtonState.Pressed) { if (position.X >= 0 && position.X <= this.ActualWidth && position.Y >= 0 && position.Y <= myTitleHeight) { this.DragMove(); e.Handled = true; } } } Regards, Lyubo MindFusion


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D Full Member Offline I Love MindFusion! Posts: 158 Joined: Mar 16^th, 2020	Re: Moving the title bar will affect the left mouse click event in the diagram Reply #8 - Mar 30^th, 2020 at 1:24pm	Print Post
	Thanks a lot, Lyubo. You are amazing!


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