我尝试实现以下目标: 鼠标按下 - >如果鼠标进入面板,颜色会发生变化 当鼠标向上 - >面板在鼠标输入时不会改变。
- 问题:当鼠标按下时,鼠标输入事件没有反应
我该如何解决这个问题?
//for all panels in the menu
private void walletpanel0_MouseEnter(object sender, EventArgs e)
{
if ( mouseDown && previousPanel != (Panel)sender)
{
Panel p = (Panel)sender;
p.BackColor = Color.FromArgb(255, 26, 41, 56);
previousPanel.BackColor = Color.FromArgb(255, 44, 62, 73);
previousPanel = p;
}
}
private void walletpanel0_MouseDown(object sender, MouseEventArgs e)
{
mouseDown = true;
//to select the panel when clicked on it
if (previousPanel != (Panel)sender)
{
Panel p = (Panel)sender;
p.BackColor = Color.FromArgb(255, 26, 41, 56);
previousPanel.BackColor = Color.FromArgb(255, 44, 62, 73);
previousPanel = p;
}
}
答案 0 :(得分:1)
据我所知,MouseEnter
,MouseMove
和MouseLeave
事件在按下鼠标按钮时不会触发。释放按钮后,如果鼠标移动在按钮关闭时触发,则会触发订阅的事件。
基本问题是当MouseDown
上发生Control
事件时,Control
"捕获"鼠标并且在释放按钮之前不会释放它,这意味着其他Controls
不会接收到移动事件。
假设您的所有Panels
订阅了它,以下事件处理程序应该可以帮助您:
private void Panels_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.None)
{
Control control = (Control)sender;
if (control.Capture)
control.Capture = false;
}
}