[C#/MAUI/.NET6] NumericValidationBehavior 클래스 : 사용자 입력 숫자 검증하기

TestProject.zip

0.15MB

▶ MainPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="TestProject.MainPage"
    xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml">
    <Entry x:Name="entry"
        HorizontalOptions="Center"
        VerticalOptions="Center"
        BackgroundColor="Yellow"
        Keyboard="Numeric"
        Placeholder="값을 입력해 주시기 바랍니다." />
</ContentPage>

 

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▶ MainPage.xaml.cs

using CommunityToolkit.Maui.Behaviors;

namespace TestProject;

/// <summary>
/// 메인 페이지
/// </summary>
public partial class MainPage : ContentPage
{
    //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
    ////////////////////////////////////////////////////////////////////////////////////////// Public

    #region 생성자 - MainPage()

    /// <summary>
    /// 생성자
    /// </summary>
    public MainPage()
    {
        InitializeComponent();

        Style validStyle = new Style(typeof(Entry));

        validStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Green });

        Style invalidStyle = new Style(typeof(Entry));

        invalidStyle.Setters.Add(new Setter { Property = Entry.TextColorProperty, Value = Colors.Red });

        NumericValidationBehavior behavior = new NumericValidationBehavior
        {
            ValidStyle           = validStyle,
            InvalidStyle         = invalidStyle,
            Flags                = ValidationFlags.ValidateOnValueChanged,
            MinimumValue         = 1.0,
            MaximumValue         = 100.0,
            MaximumDecimalPlaces = 2
        };

        this.entry.Behaviors.Add(behavior);
    }

    #endregion
}

 

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▶ MauiProgram.cs

using CommunityToolkit.Maui;

namespace TestProject;

/// <summary>
/// MAUI 프로그램
/// </summary>
public static class MauiProgram
{
    //////////////////////////////////////////////////////////////////////////////////////////////////// Method
    ////////////////////////////////////////////////////////////////////////////////////////// Static
    //////////////////////////////////////////////////////////////////////////////// Public

    #region MAUI 앱 생성하기 - CreateMauiApp()

    /// <summary>
    /// MAUI 앱 생성하기
    /// </summary>
    /// <returns>MAUI 앱</returns>
    public static MauiApp CreateMauiApp()
    {
        MauiAppBuilder builder = MauiApp.CreateBuilder();

        builder
            .UseMauiApp<App>()
            .UseMauiCommunityToolkit()
            .ConfigureFonts
            (
                fontCollection =>
                {
                    fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" );
                    fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
                }
            );

        return builder.Build();
    }

    #endregion
}