ShowDialog 允许在 WPF 下的 MainWindow 上触发事件 VB.NET

Question

我有一个主 window 和一个对话框 window。 mainwindow 有一条路径，带有 PreviewMouseLeftButtonUp 事件和一个按钮。该按钮为我的对话框 window 打开一个 'ShowDialog'。此对话框 window 上有一个标签，带有关闭对话框的 PreviewMouseLeftButtonDown 事件。对话框直接在路径上方打开。当我单击标签关闭对话框时，路径 PreviewMouseLeftButtonUp 事件也会触发。我该如何防止这种情况？我希望这是有道理的，感谢你能给我的任何帮助。

这是我的主窗口代码：

<Window x:Class="MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:DialogTest"
    mc:Ignorable="d"
    Title="MainWindow" Height="695" Width="958" WindowStartupLocation="CenterScreen">
<Grid>
    <Button x:Name="button" Content="Button" HorizontalAlignment="Left" Height="62" Margin="10,0,0,0" VerticalAlignment="Top" Width="138" />

    <Path Data="M0,0L32,0 32,32 0,32z" Stretch="Uniform" Fill="Red" Margin="-167,62,-76,0" RenderTransformOrigin="0.5,0.5"  PreviewMouseLeftButtonUp="Path_PreviewMouseLeftButtonUp">
        <Path.RenderTransform>
            <TransformGroup>
                <TransformGroup.Children>
                    <RotateTransform Angle="0" />
                    <ScaleTransform ScaleX="1" ScaleY="1" />
                </TransformGroup.Children>
            </TransformGroup>
        </Path.RenderTransform>
    </Path>

</Grid>

主窗口背后的代码：

Class MainWindow


Private Sub button_Click(sender As Object, e As RoutedEventArgs) Handles button.Click
    Dim win As New dialog
    win.ShowDialog()
End Sub



Private Sub Path_MouseLeftButtonUp(sender As Object, e As MouseButtonEventArgs)

End Sub

Private Sub Path_PreviewMouseLeftButtonUp(sender As Object, e As MouseButtonEventArgs)
    MsgBox("ClickedPreview")
End Sub

结束Class

对话框的代码 window:

<Window x:Class="dialog"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:DialogTest"
    mc:Ignorable="d"
    Title="dialog" Height="146" Width="132" WindowStartupLocation="CenterScreen">
<Grid>
    <Label x:Name="label" Content="Label" HorizontalAlignment="Center" Height="88" Margin="0,10,0,0" VerticalAlignment="Top" Width="112"/>

</Grid>

以及对话框的隐藏代码 window:

Public Class dialog
Private Sub label_PreviewMouseLeftButtonDown(sender As Object, e As MouseButtonEventArgs) Handles label.PreviewMouseLeftButtonDown
    Me.Close()
End Sub

结束Class

Answer 1

只是让任何人知道我通过将标签更改为按钮来解决此问题。按钮点击事件不会触发下面的点击事件。

ShowDialog 允许在 WPF 下的 MainWindow 上触发事件 VB.NET

ShowDialog Allowing Event Triggers on MainWindow Underneath WPF VB.NET

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