[C#/WINUI3/COMMUNITY TOOLKIT/.NET8] ControlSizeTrigger 엘리먼트 : TargetElement/MinWidth/MaxWidth 속성을 사용해 컨트롤 크기에 따라 처리하기

■ ControlSizeTrigger 엘리먼트의 TargetElement/MinWidth/MaxWidth 속성을 사용해 컨트롤 크기에 따라 처리하는 방법을 보여준다.

※ 비주얼 스튜디오에서 TestProject(Unpackaged) 모드로 빌드한다.
※ TestProject.csproj 프로젝트 파일에서 WindowsPackageType 태그를 None으로 추가했다.

▶ MainPage.xaml


<?xml version="1.0" encoding="utf-8"?>
<Page x:Class="TestProject.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:ctw="using:CommunityToolkit.WinUI"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Grid>
        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup>
                <VisualState>
                    <VisualState.StateTriggers>
                        <ctw:ControlSizeTrigger
                            TargetElement="{Binding ElementName=grid}"
                            MinWidth="400"
                            MaxWidth="501" />
                    </VisualState.StateTriggers>
                    <VisualState.Setters>
                        <Setter Target="resizingRun.Text" Value="more than 400" />
                    </VisualState.Setters>
                </VisualState>
            </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
        <StackPanel
            HorizontalAlignment="Center"
            VerticalAlignment="Center">
            <Slider Name="slider"
                Width="500"
                Minimum="1"
                Maximum="500" />
            <Grid Name="grid"
                Width="{Binding Value, ElementName=slider, Mode=OneWay}"
                Height="32"
                CornerRadius="{StaticResource ControlCornerRadius}"
                Background="{ThemeResource AccentFillColorDefaultBrush}" />
            <TextBlock
                Style="{StaticResource CaptionTextBlockStyle}"
                HorizontalAlignment="Center"
                Margin="0 10 0 0">
                <Run Text="Control size is" />
                <Run x:Name="resizingRun"
                     FontWeight="SemiBold"
                     Text="less than 400" />
            </TextBlock>
        </StackPanel>
    </Grid>
</Page>

<?xml version="1.0" encoding="utf-8"?>

<Page x:Class="TestProject.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:ctw="using:CommunityToolkit.WinUI"

Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"

FontFamily="나눔고딕코딩"

FontSize="16">

<Grid>

<VisualStateManager.VisualStateGroups>

<VisualState.StateTriggers>

<ctw:ControlSizeTrigger

TargetElement="{Binding ElementName=grid}"

MinWidth="400"

MaxWidth="501" />

</VisualState.StateTriggers>

<VisualState.Setters>

</VisualState.Setters>

</VisualState>

</VisualStateGroup>

</VisualStateManager.VisualStateGroups>

<StackPanel

HorizontalAlignment="Center"

VerticalAlignment="Center">

<Slider Name="slider"

Width="500"

Minimum="1"

Maximum="500" />

<Grid Name="grid"

Width="{Binding Value, ElementName=slider, Mode=OneWay}"

Height="32"

CornerRadius="{StaticResource ControlCornerRadius}"

Background="{ThemeResource AccentFillColorDefaultBrush}" />

<TextBlock

Style="{StaticResource CaptionTextBlockStyle}"

HorizontalAlignment="Center"

Margin="0 10 0 0">

<Run x:Name="resizingRun"

FontWeight="SemiBold"

Text="less than 400" />

</TextBlock>

</StackPanel>

</Grid>

</Page>

TestProject.zip