鼠标左键事件和打开文件对话框 [英] Mouse left button up event and openfiledialog

问题描述

我有一个网格几张图片，然后当我点击一个按钮，一个打开文件对话框出现。（当然，在图像）

I have few images in a grid, then when i click a button, a "open file dialog" comes up.(of course, over the images)

Microsoft.Win32.OpenFileDialog dlgOpenFiles =新Microsoft.Win32.OpenFileDialog（）;
dlgOpenFile.DoModal（）;

Microsoft.Win32.OpenFileDialog dlgOpenFiles = new Microsoft.Win32.OpenFileDialog(); dlgOpenFile.DoModal();

图像有LeftButtonUp事件连接。问题是，如果我选择通过双击某个文件单击它，打开文件对话框关闭（这是好的），但除此之外，点击文件后面的图像接收LeftButtonUp消息，这是不好的。

The images have a LeftButtonUp event attached. The problem is that if i select a file by double clicking it, the open file dialog closes(which is good), but besides that, the image behind the clicked file is receiving a LeftButtonUp message which is not good at all.

我使用WPF / C＃/ VS2010

I am using wpf/c#/vs2010

推荐答案

最简单的方式来获得围绕它，是每当你需要一个处理程序按钮事件，添加一个按钮按下事件，执行 CaptureMouse（）在里面。现在，在你的按钮事件，你可以忽略所有的事件，这些事件发生没有 IsMouseCaptured 。并确保不要忘记 ReleaseMouseCapture（）：

The simple way to get around it, is whenever you need a handler to button-up event, add a button-down event, do CaptureMouse() in it. Now in your button-up event you can ignore all events, which happen without IsMouseCaptured. And make sure not to forget ReleaseMouseCapture():

private void OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
    CaptureMouse();
}

private void OnMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
    if (!IsMouseCaptured)
        return;
    ReleaseMouseCapture();
    var dlg = new OpenFileDialog();
    var res = dlg.ShowDialog(this);
    // ...
}

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