From e3106beddeefc071dc4b8846d0b89f4c89d8272c Mon Sep 17 00:00:00 2001
From: syneffort <syneffort@gmail.com>
Date: Tue, 23 Apr 2024 14:03:28 +0900
Subject: [PATCH] Converter

---
 MVVMwithWPF/MVVMwithWPF/App.xaml              |  2 +-
 .../Converters/BoolToStringConverter.cs       | 32 ++++++++++++
 .../Converters/InvertedBooleanConverter.cs    | 26 ++++++++++
 .../ParameterContainValueConverter.cs         | 33 ++++++++++++
 MVVMwithWPF/MVVMwithWPF/Models/Person.cs      |  1 +
 .../ViewModels/ConverterViewModel.cs          | 32 ++++++++++++
 .../MVVMwithWPF/Views/ConverterWindoew.xaml   | 51 +++++++++++++++++++
 .../Views/ConverterWindoew.xaml.cs            | 27 ++++++++++
 8 files changed, 203 insertions(+), 1 deletion(-)
 create mode 100644 MVVMwithWPF/MVVMwithWPF/Converters/BoolToStringConverter.cs
 create mode 100644 MVVMwithWPF/MVVMwithWPF/Converters/InvertedBooleanConverter.cs
 create mode 100644 MVVMwithWPF/MVVMwithWPF/Converters/ParameterContainValueConverter.cs
 create mode 100644 MVVMwithWPF/MVVMwithWPF/ViewModels/ConverterViewModel.cs
 create mode 100644 MVVMwithWPF/MVVMwithWPF/Views/ConverterWindoew.xaml
 create mode 100644 MVVMwithWPF/MVVMwithWPF/Views/ConverterWindoew.xaml.cs

diff --git a/MVVMwithWPF/MVVMwithWPF/App.xaml b/MVVMwithWPF/MVVMwithWPF/App.xaml
index ed413cd..54ba07c 100644
--- a/MVVMwithWPF/MVVMwithWPF/App.xaml
+++ b/MVVMwithWPF/MVVMwithWPF/App.xaml
@@ -2,6 +2,6 @@
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:local="clr-namespace:MVVMwithWPF"
-             StartupUri="/Views/BindingSampleWithoutViewModelWindow.xaml">
+             StartupUri="/Views/ConverterWindoew.xaml">
     <Application.Resources />
 </Application>
diff --git a/MVVMwithWPF/MVVMwithWPF/Converters/BoolToStringConverter.cs b/MVVMwithWPF/MVVMwithWPF/Converters/BoolToStringConverter.cs
new file mode 100644
index 0000000..5d63517
--- /dev/null
+++ b/MVVMwithWPF/MVVMwithWPF/Converters/BoolToStringConverter.cs
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace MVVMwithWPF.Converters
+{
+    class BoolToStringConverter : IValueConverter
+    {
+        private const string TRUE_VALUE = "남자";
+        private const string FALSE_VALUE = "여자";
+
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value is bool b)
+                return b ? TRUE_VALUE : FALSE_VALUE;
+
+            return Binding.DoNothing;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value is string s)
+                return s == TRUE_VALUE ? true : false;
+
+            return Binding.DoNothing;
+        }
+    }
+}
diff --git a/MVVMwithWPF/MVVMwithWPF/Converters/InvertedBooleanConverter.cs b/MVVMwithWPF/MVVMwithWPF/Converters/InvertedBooleanConverter.cs
new file mode 100644
index 0000000..2e29a03
--- /dev/null
+++ b/MVVMwithWPF/MVVMwithWPF/Converters/InvertedBooleanConverter.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace MVVMwithWPF.Converters
+{
+    public class InvertedBooleanConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value is bool b)
+                return !b;
+
+            return Binding.DoNothing;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/MVVMwithWPF/MVVMwithWPF/Converters/ParameterContainValueConverter.cs b/MVVMwithWPF/MVVMwithWPF/Converters/ParameterContainValueConverter.cs
new file mode 100644
index 0000000..e71e9bf
--- /dev/null
+++ b/MVVMwithWPF/MVVMwithWPF/Converters/ParameterContainValueConverter.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace MVVMwithWPF.Converters
+{
+    class ParameterContainValueConverter : IValueConverter
+    {
+        public bool TrueValue { get; set; } = true;
+        public bool FalseValue { get; set; } = false;
+
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            bool returnValue = FalseValue;
+            string data = value?.ToString() ?? "";
+            if (parameter is not string para)
+                return returnValue;
+
+            string[] split = para.Split("|");
+            returnValue = split.Contains(data) ? TrueValue : FalseValue;
+            return returnValue;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/MVVMwithWPF/MVVMwithWPF/Models/Person.cs b/MVVMwithWPF/MVVMwithWPF/Models/Person.cs
index 8687833..5ecbd40 100644
--- a/MVVMwithWPF/MVVMwithWPF/Models/Person.cs
+++ b/MVVMwithWPF/MVVMwithWPF/Models/Person.cs
@@ -12,5 +12,6 @@ namespace MVVMwithWPF.Models
         public int Id { get; set; }
         public string Name { get; set; }
         public bool Sex { get; set; }
+        public string DepartmentCode { get; set; }
     }
 }
diff --git a/MVVMwithWPF/MVVMwithWPF/ViewModels/ConverterViewModel.cs b/MVVMwithWPF/MVVMwithWPF/ViewModels/ConverterViewModel.cs
new file mode 100644
index 0000000..896b25d
--- /dev/null
+++ b/MVVMwithWPF/MVVMwithWPF/ViewModels/ConverterViewModel.cs
@@ -0,0 +1,32 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using MVVMwithWPF.Models;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MVVMwithWPF.ViewModels
+{
+    public partial class ConverterViewModel : ObservableObject
+    {
+        [ObservableProperty]
+        private ObservableCollection<Person> _person;
+
+        [ObservableProperty]
+        private bool _isEdit;
+
+        public ConverterViewModel()
+        {
+            Person = new ObservableCollection<Person>()
+            {
+                new Person() { Id = 1, Name = "user001", Sex = true, DepartmentCode = "01"},
+                new Person() { Id = 2, Name = "user002", Sex = false, DepartmentCode = "02"},
+                new Person() { Id = 3, Name = "user003", Sex = true, DepartmentCode = "03"},
+                new Person() { Id = 4, Name = "user004", Sex = false, DepartmentCode = "02"},
+                new Person() { Id = 5, Name = "user005", Sex = true, DepartmentCode = "01"},
+            };
+        }
+    }
+}
diff --git a/MVVMwithWPF/MVVMwithWPF/Views/ConverterWindoew.xaml b/MVVMwithWPF/MVVMwithWPF/Views/ConverterWindoew.xaml
new file mode 100644
index 0000000..00528ed
--- /dev/null
+++ b/MVVMwithWPF/MVVMwithWPF/Views/ConverterWindoew.xaml
@@ -0,0 +1,51 @@
+<Window x:Class="MVVMwithWPF.Views.ConverterWindoew"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:converters="clr-namespace:MVVMwithWPF.Converters"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:local="clr-namespace:MVVMwithWPF.Views"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:viewModels="clr-namespace:MVVMwithWPF.ViewModels"
+        Title="ConverterWindoew"
+        Width="800"
+        Height="450"
+        mc:Ignorable="d">
+    <Window.DataContext>
+        <viewModels:ConverterViewModel />
+    </Window.DataContext>
+    <Window.Resources>
+        <converters:InvertedBooleanConverter x:Key="ReverseBConverter" />
+        <converters:BoolToStringConverter x:Key="B2SConverter" />
+        <converters:BoolToVisibilityConverter x:Key="B2VConverter" />
+        <converters:BoolToVisibilityConverter x:Key="ReverseB2VConverter"
+                                              FalseValue="Visible" TrueVlaue="Collapsed" />
+        <converters:ParameterContainValueConverter x:Key="ParamContainConverter" />
+    </Window.Resources>
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+        <DataGrid AutoGenerateColumns="False" CanUserAddRows="False" IsReadOnly="True"
+                  ItemsSource="{Binding Person}">
+            <DataGrid.Columns>
+                <DataGridTextColumn Binding="{Binding Id}" Header="Id" />
+                <DataGridTextColumn Binding="{Binding Name}" Header="이름" />
+                <DataGridTextColumn Binding="{Binding Sex}" Header="성별" />
+                <DataGridTextColumn Binding="{Binding DepartmentCode}" Header="부서" />
+            </DataGrid.Columns>
+        </DataGrid>
+        <StackPanel Grid.Column="1" Margin="5">
+            <CheckBox Content="IsEdit" IsChecked="{Binding IsEdit, Mode=TwoWay}" />
+            <TextBlock Text="IsEnable Binding" />
+            <TextBox IsEnabled="{Binding IsEdit}" />
+            <TextBlock Text="IsReadOnly Reverse Binding" />
+            <TextBox IsReadOnly="{Binding IsEdit, Converter={StaticResource ReverseBConverter}}" />
+            <TextBlock Text="IsEdit Visibility" Visibility="{Binding IsEdit, Converter={StaticResource B2VConverter}}" />
+            <TextBlock Text="IsEdit Reverse Visibility" Visibility="{Binding IsEdit, Converter={StaticResource ReverseB2VConverter}}" />
+            <TextBlock Text="Parameter Contain Value Test" />
+            <TextBox x:Name="tbxParam" />
+            <CheckBox IsEnabled="False" Content="apple|banana|strawberry" IsChecked="{Binding ElementName=tbxParam, Path=Text, Converter={StaticResource ParamContainConverter}, ConverterParameter=apple|banana|strawberry}" />
+        </StackPanel>
+    </Grid>
+</Window>
diff --git a/MVVMwithWPF/MVVMwithWPF/Views/ConverterWindoew.xaml.cs b/MVVMwithWPF/MVVMwithWPF/Views/ConverterWindoew.xaml.cs
new file mode 100644
index 0000000..171db90
--- /dev/null
+++ b/MVVMwithWPF/MVVMwithWPF/Views/ConverterWindoew.xaml.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace MVVMwithWPF.Views
+{
+    /// <summary>
+    /// ConverterWindoew.xaml에 대한 상호 작용 논리
+    /// </summary>
+    public partial class ConverterWindoew : Window
+    {
+        public ConverterWindoew()
+        {
+            InitializeComponent();
+        }
+    }
+}