[C#/WINUI3/COMMUNITY TOOLKIT/.NET8] DoubleToObjectConverter 엘리먼트 : GreaterThan/LessThan/TrueValue/FalseValue 속성을 사용해 실수 값→객체 값 변환자 설정하기

■ DoubleToObjectConverter 엘리먼트의 GreaterThan/LessThan/TrueValue/FalseValue 속성을 사용해 실수 값→객체 값 변환자를 설정하는 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:ctwcv="using:CommunityToolkit.WinUI.Converters"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Page.Resources>
        <ctwcv:DoubleToObjectConverter x:Key="DoubleToObjectConverterKey"
            GreaterThan="3"
            LessThan="7"
            TrueValue="{ThemeResource SystemFillColorCriticalBrush}"
            FalseValue="{ThemeResource SystemFillColorSuccessBrush}" />
    </Page.Resources>
    <StackPanel
        HorizontalAlignment="Center"
        VerticalAlignment="Center"
        Spacing="10">
        <Border
            HorizontalAlignment="Center"
            Width="100"
            Height="100"
            CornerRadius="5"
            Background="{x:Bind slider.Value, Mode=OneWay, Converter={StaticResource DoubleToObjectConverterKey}}" />
        <Slider Name="slider"
            HorizontalAlignment="Center"
            Width="300"
            Minimum="0"
            Maximum="10"
            TickPlacement="Outside"
            TickFrequency="20"
            Value="4" />
    </StackPanel>
</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:ctwcv="using:CommunityToolkit.WinUI.Converters"

Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"

FontFamily="나눔고딕코딩"

FontSize="16">

<Page.Resources>

<ctwcv:DoubleToObjectConverter x:Key="DoubleToObjectConverterKey"

GreaterThan="3"

LessThan="7"

TrueValue="{ThemeResource SystemFillColorCriticalBrush}"

FalseValue="{ThemeResource SystemFillColorSuccessBrush}" />

</Page.Resources>

<StackPanel

HorizontalAlignment="Center"

VerticalAlignment="Center"

Spacing="10">

<Border

HorizontalAlignment="Center"

Width="100"

Height="100"

CornerRadius="5"

Background="{x:Bind slider.Value, Mode=OneWay, Converter={StaticResource DoubleToObjectConverterKey}}" />

<Slider Name="slider"

HorizontalAlignment="Center"

Width="300"

Minimum="0"

Maximum="10"

TickPlacement="Outside"

TickFrequency="20"

Value="4" />

</StackPanel>

</Page>

TestProject.zip