英文:
C# - Mouse Down event for form is not working
问题
我正在尝试制作可拖动的窗体，但当我尝试检测鼠标按下和抬起事件时，却没有触发事件。其他功能似乎是有效的，但这两个事件没有触发。
英文:
I'm trying to make draggable window form, but when I tried to detect mouse down and up event to form, but event does not fire.
Other things seems working but those 2 events are not.
public form(){InitializeComponent();this.BackColor = Color.Fuchsia;this.TransparencyKey = this.BackColor;Debug.Write("initialized");}private void form_MouseDown(object sender, MouseEventArgs e){Debug.Write("dragging..");}private void form_MouseUp(object sender, MouseEventArgs e){Debug.Write("drag done");}
答案1
得分: 0
最好将一个 `panel` 添加到您的表单，并将 `Dock` 设置为 `top` 以覆盖标题栏区域。然后使用这个示例代码private bool isDragging = false;private Point lastLocation;private void panel_MouseDown(object sender, MouseEventArgs e){isDragging = true;lastLocation = e.Location;}private void panel_MouseMove(object sender, MouseEventArgs e){if (isDragging){this.Location = new Point((this.Location.X - lastLocation.X) + e.X,(this.Location.Y - lastLocation.Y) + e.Y);this.Update();}}private void panel_MouseUp(object sender, MouseEventArgs e){isDragging = false;}不要忘记在表单构造函数中添加处理程序panel.MouseDown += panel_MouseDown;panel.MouseMove += panel_MouseMove;panel.MouseUp += panel_MouseUp;
英文:
it is better to add a panel to your form and set Dock to top in order to cover the title bar area. then use this sample code
private bool isDragging = false;private Point lastLocation;private void panel_MouseDown(object sender, MouseEventArgs e){isDragging = true;lastLocation = e.Location;}private void panel_MouseMove(object sender, MouseEventArgs e){if (isDragging){this.Location = new Point((this.Location.X - lastLocation.X) + e.X,(this.Location.Y - lastLocation.Y) + e.Y);this.Update();}}private void panel_MouseUp(object sender, MouseEventArgs e){isDragging = false;}
don't forget to add handlers in the form constructor
panel.MouseDown += panel_MouseDown;panel.MouseMove += panel_MouseMove;panel.MouseUp += panel_MouseUp;
答案2
得分: 0
在你的窗体构造函数中，注册那些用于监听鼠标按下事件的方法，就像这样。
public form() {InitializeComponent();this.BackColor = Color.Fuchsia;this.TransparencyKey = this.BackColor;Debug.Write("initialized");//注册用于监听事件的方法this.MouseDown += form_MouseDown;this.MouseUp += form_MouseUp;}private void form_MouseDown(object sender,MouseEventArgs e) {Debug.Write("拖拽中..");}private void form_MouseUp(object sender,MouseEventArgs e) {Debug.Write("拖拽完成");}
英文:
In your constructor for form, register those methods your using to listen for the mouse down events like this.
public form() {InitializeComponent();this.BackColor = Color.Fuchsia;this.TransparencyKey = this.BackColor;Debug.Write("initialized");//register the methods to listen for the eventsthis.MouseDown += form_MouseDown;this.MouseUp += form_MouseUp;}private void form_MouseDown(object sender,MouseEventArgs e) {Debug.Write("dragging..");}private void form_MouseUp(object sender,MouseEventArgs e) {Debug.Write("drag done");}
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