问题
How can I close a childwindow when I click outside of it?
回答1:
if you are using the default silverlight child window style, when it opens, the outside part (the transparent grey part) is actually a Grid (called Overlay) that is within the child window style.
So what you need to do is to handle its MouseLeftButtonDown event,
<Grid x:Name="Overlay" Background="{TemplateBinding OverlayBrush}" HorizontalAlignment="Stretch" Margin="0" Opacity="{TemplateBinding OverlayOpacity}" VerticalAlignment="Top" MouseLeftButtonDown="Overlay_MouseLeftButtonDown"/>
and in the code behind, you do
private void Overlay_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
this.Close();
}
I also copied the style here just in case. :)
<sdk:ChildWindow.Resources>
<Style x:Key="ChildWindowStyle1" TargetType="sdk:ChildWindow">
<Setter Property="IsTabStop" Value="false"/>
<Setter Property="TabNavigation" Value="Cycle"/>
<Setter Property="HorizontalAlignment" Value="Center"/>
<Setter Property="VerticalAlignment" Value="Center"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="VerticalContentAlignment" Value="Stretch"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="BorderBrush">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFA3AEB9" Offset="0"/>
<GradientStop Color="#FF8399A9" Offset="0.375"/>
<GradientStop Color="#FF718597" Offset="0.375"/>
<GradientStop Color="#FF617584" Offset="1"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="OverlayBrush" Value="#7F000000"/>
<Setter Property="OverlayOpacity" Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="sdk:ChildWindow">
<Grid x:Name="Root">
<Grid.Resources>
<Style x:Key="ButtonStyle" TargetType="Button">
<Setter Property="Background" Value="#FF1F3B53"/>
<Setter Property="Foreground" Value="#FF000000"/>
<Setter Property="Padding" Value="3"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="BorderBrush">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFA3AEB9" Offset="0"/>
<GradientStop Color="#FF8399A9" Offset="0.375"/>
<GradientStop Color="#FF718597" Offset="0.375"/>
<GradientStop Color="#FF617584" Offset="1"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid x:Name="grid" Background="#02FFFFFF" HorizontalAlignment="Center" Height="14" VerticalAlignment="Center" Width="15">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="X_Fuzz2">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="X_Fuzz1">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="X_Fuzz0">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation Duration="0" To="0.95" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="X"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<DoubleAnimation Duration="0" To="0.85" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="X"/>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="X_Fuzz2">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="X_Fuzz1">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="X_Fuzz0">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Duration="0" To="0.5" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="X"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Path x:Name="X_Fuzz2" Data="F1 M 6.742676,3.852539 L 9.110840,1.559570 L 8.910645,0.500000 L 6.838379,0.500000 L 4.902832,2.435547 L 2.967285,0.500000 L 0.895020,0.500000 L 0.694824,1.559570 L 3.062988,3.852539 L 0.527832,6.351563 L 0.689941,7.600586 L 2.967285,7.600586 L 4.897949,5.575195 L 6.854004,7.600586 L 9.115723,7.600586 L 9.277832,6.351563 L 6.742676,3.852539 Z" Fill="#14C51900" HorizontalAlignment="Center" Height="8" Margin="0,-1,0,0" Opacity="1" RenderTransformOrigin="0.5,0.5" Stretch="Fill" Stroke="#14C51900" Visibility="Collapsed" VerticalAlignment="Center" Width="9">
<Path.RenderTransform>
<TransformGroup>
<ScaleTransform ScaleY="1.3" ScaleX="1.3"/>
</TransformGroup>
</Path.RenderTransform>
</Path>
<Path x:Name="X_Fuzz1" Data="F1 M 6.742676,3.852539 L 9.110840,1.559570 L 8.910645,0.500000 L 6.838379,0.500000 L 4.902832,2.435547 L 2.967285,0.500000 L 0.895020,0.500000 L 0.694824,1.559570 L 3.062988,3.852539 L 0.527832,6.351563 L 0.689941,7.600586 L 2.967285,7.600586 L 4.897949,5.575195 L 6.854004,7.600586 L 9.115723,7.600586 L 9.277832,6.351563 L 6.742676,3.852539 Z" Fill="#1EC51900" HorizontalAlignment="Center" Height="8" Margin="0,-1,0,0" Opacity="1" RenderTransformOrigin="0.5,0.5" Stretch="Fill" Stroke="#1EC51900" Visibility="Collapsed" VerticalAlignment="Center" Width="9">
<Path.RenderTransform>
<TransformGroup>
<ScaleTransform ScaleY="1.1" ScaleX="1.1"/>
</TransformGroup>
</Path.RenderTransform>
</Path>
<Path x:Name="X_Fuzz0" Data="F1 M 6.742676,3.852539 L 9.110840,1.559570 L 8.910645,0.500000 L 6.838379,0.500000 L 4.902832,2.435547 L 2.967285,0.500000 L 0.895020,0.500000 L 0.694824,1.559570 L 3.062988,3.852539 L 0.527832,6.351563 L 0.689941,7.600586 L 2.967285,7.600586 L 4.897949,5.575195 L 6.854004,7.600586 L 9.115723,7.600586 L 9.277832,6.351563 L 6.742676,3.852539 Z" Fill="#FFC51900" HorizontalAlignment="Center" Height="8" Margin="0,-1,0,0" Opacity="1" Stretch="Fill" Stroke="#FFC51900" Visibility="Collapsed" VerticalAlignment="Center" Width="9"/>
<Path x:Name="X" Data="F1 M 6.742676,3.852539 L 9.110840,1.559570 L 8.910645,0.500000 L 6.838379,0.500000 L 4.902832,2.435547 L 2.967285,0.500000 L 0.895020,0.500000 L 0.694824,1.559570 L 3.062988,3.852539 L 0.527832,6.351563 L 0.689941,7.600586 L 2.967285,7.600586 L 4.897949,5.575195 L 6.854004,7.600586 L 9.115723,7.600586 L 9.277832,6.351563 L 6.742676,3.852539 Z" Fill="#FFFFFFFF" HorizontalAlignment="Center" Height="8" Margin="0,-1,0,0" Opacity="0.7" Stretch="Fill" VerticalAlignment="Center" Width="9">
<Path.Stroke>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF313131" Offset="1"/>
<GradientStop Color="#FF8E9092" Offset="0"/>
</LinearGradientBrush>
</Path.Stroke>
</Path>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Grid.Resources>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="WindowStates">
<VisualState x:Name="Open">
<Storyboard>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Overlay">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
<EasingDoubleKeyFrame KeyTime="00:00:00.3" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetProperty="(RenderTransform).(Children)[0].ScaleX" Storyboard.TargetName="ContentRoot">
<SplineDoubleKeyFrame KeyTime="0" Value="0"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.4" Value="1"/>
<SplineDoubleKeyFrame KeySpline="0,0,0.5,1" KeyTime="00:00:00.45" Value="1.05"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.55" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetProperty="(RenderTransform).(Children)[0].ScaleY" Storyboard.TargetName="ContentRoot">
<SplineDoubleKeyFrame KeyTime="0" Value="0"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.4" Value="1"/>
<SplineDoubleKeyFrame KeySpline="0,0,0.5,1" KeyTime="00:00:00.45" Value="1.05"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.55" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Closed">
<Storyboard>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Overlay">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
<EasingDoubleKeyFrame KeyTime="00:00:00.3" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetProperty="(RenderTransform).(Children)[0].ScaleX" Storyboard.TargetName="ContentRoot">
<SplineDoubleKeyFrame KeyTime="00:00:00.2" Value="1"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="1.05"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.45" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetProperty="(RenderTransform).(Children)[0].ScaleY" Storyboard.TargetName="ContentRoot">
<SplineDoubleKeyFrame KeyTime="00:00:00.2" Value="1"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="1.05"/>
<SplineDoubleKeyFrame KeyTime="00:00:00.45" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid x:Name="Overlay" Background="{TemplateBinding OverlayBrush}" HorizontalAlignment="Stretch" Margin="0" Opacity="{TemplateBinding OverlayOpacity}" VerticalAlignment="Top" MouseLeftButtonDown="Overlay_MouseLeftButtonDown"/>
<Grid x:Name="ContentRoot" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" Height="{TemplateBinding Height}" RenderTransformOrigin="0.5,0.5" VerticalAlignment="{TemplateBinding VerticalAlignment}" Width="{TemplateBinding Width}">
<Grid.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Grid.RenderTransform>
<Border BorderBrush="#14000000" BorderThickness="1" Background="#14000000" CornerRadius="2" HorizontalAlignment="Stretch" Margin="-1" VerticalAlignment="Stretch"/>
<Border BorderBrush="#0F000000" BorderThickness="1" Background="#0F000000" CornerRadius="2.25" HorizontalAlignment="Stretch" Margin="-2" VerticalAlignment="Stretch"/>
<Border BorderBrush="#0C000000" BorderThickness="1" Background="#0C000000" CornerRadius="2.5" HorizontalAlignment="Stretch" Margin="-3" VerticalAlignment="Stretch"/>
<Border BorderBrush="#0A000000" BorderThickness="1" Background="#0A000000" CornerRadius="2.75" HorizontalAlignment="Stretch" Margin="-4" VerticalAlignment="Stretch"/>
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="#FFFFFFFF" CornerRadius="2">
<Border CornerRadius="1.5" Margin="1">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFE5E8EB" Offset="1"/>
<GradientStop Color="#FFF6F8F9" Offset="0"/>
</LinearGradientBrush>
</Border.Background>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<Border x:Name="Chrome" BorderBrush="#FFFFFFFF" BorderThickness="0,0,0,1" Width="Auto">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,0.528" StartPoint="0.5,0">
<GradientStop Color="#FFE5E8EB" Offset="1"/>
<GradientStop Color="#FFFEFEFE" Offset="0"/>
</LinearGradientBrush>
</Border.Background>
<Grid Height="Auto" Width="Auto">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition Width="30"/>
</Grid.ColumnDefinitions>
<ContentControl Content="{TemplateBinding Title}" FontWeight="Bold" HorizontalAlignment="Stretch" IsTabStop="False" Margin="6,0,6,0" VerticalAlignment="Center"/>
<Button x:Name="CloseButton" Grid.Column="1" HorizontalAlignment="Center" Height="14" IsTabStop="False" Style="{StaticResource ButtonStyle}" VerticalAlignment="Center" Width="15"/>
</Grid>
</Border>
<Border Background="{TemplateBinding Background}" Margin="7" Grid.Row="1">
<ContentPresenter x:Name="ContentPresenter" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
</Grid>
</Border>
</Border>
</Grid>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</sdk:ChildWindow.Resources>
<sdk:ChildWindow.Style>
<StaticResource ResourceKey="ChildWindowStyle1"/>
</sdk:ChildWindow.Style>
回答2:
You may try with LostFocus event.
来源：https://stackoverflow.com/questions/5728678/close-childwindows-in-silverlight-with-a-click-outside-of-it