new samples

PacticeSolution/DependencyProperty/App.xaml

@@ -0,0 +1,9 @@
+<Application x:Class="DependencyPropertySample.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:DependencyPropertySample"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>

PacticeSolution/DependencyProperty/App.xaml.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace DependencyPropertySample
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+}

PacticeSolution/DependencyProperty/AssemblyInfo.cs

@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]

PacticeSolution/DependencyProperty/DependencyPropertySample.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+</Project>

PacticeSolution/DependencyProperty/MainWindow.xaml

@@ -0,0 +1,28 @@
+<Window x:Class="DependencyPropertySample.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:DependencyPropertySample"
+        mc:Ignorable="d"
+        Title="MainWindow" Height="300" Width="400">
+    <Grid>
+        
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="*"/>
+            <ColumnDefinition Width="*"/>
+        </Grid.ColumnDefinitions>
+
+        <ComboBox x:Name="cboMain" Grid.Column="0" VerticalAlignment="Center" Margin="10"
+                  SelectionChanged="cboMain_SelectionChanged">
+            <ComboBoxItem Content="Apple"/>
+            <ComboBoxItem Content="Watermelon"/>
+            <ComboBoxItem Content="Tangerine"/>
+            <ComboBoxItem Content="Orange"/>
+            <ComboBoxItem Content="Strawberry"/>
+        </ComboBox>
+
+        <TextBlock x:Name="txtFruit" Grid.Column="1" VerticalAlignment="Center" Margin="10" TextAlignment="Center" Text="What Fruit?"/>
+
+    </Grid>
+</Window>

PacticeSolution/DependencyProperty/MainWindow.xaml.cs

@@ -0,0 +1,60 @@
+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.Navigation;
+using System.Windows.Shapes;
+
+namespace DependencyPropertySample
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        // Dependency Property
+        public static readonly DependencyProperty MyProperty = DependencyProperty.Register(nameof(MyFruit), typeof(string), typeof(MainWindow), new FrameworkPropertyMetadata(new PropertyChangedCallback(OnMyPropertyChanged)));
+
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+
+        public string MyFruit
+        {
+            get { return (string)GetValue(MyProperty); }
+            set { SetValue(MyProperty, value); }
+        }
+
+        public static void OnMyPropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
+        {
+            MainWindow win = o as MainWindow;
+            if (win == null)
+                return;
+
+            win.Title = (e.OldValue == null) ? "Not selected" : $"Old value is {e.OldValue.ToString()}";
+            win.txtFruit.Text = e.NewValue.ToString();
+        }
+
+        private void cboMain_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            ComboBox cb = sender as ComboBox;
+            if (cb == null)
+                return;
+
+            ComboBoxItem item = cb.SelectedItem as ComboBoxItem;
+            if (item == null) 
+                return;
+
+            MyFruit = item.Content.ToString();
+        }
+    }
+}

PacticeSolution/MVVMComboBoxSample/App.xaml

@@ -0,0 +1,9 @@
+<Application x:Class="MVVMComboBoxSample.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:MVVMComboBoxSample"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>

PacticeSolution/MVVMComboBoxSample/App.xaml.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace MVVMComboBoxSample
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+}

PacticeSolution/MVVMComboBoxSample/AssemblyInfo.cs

@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]

PacticeSolution/MVVMComboBoxSample/MVVMComboBoxSample.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+</Project>

PacticeSolution/MVVMComboBoxSample/MainWindow.xaml

@@ -0,0 +1,35 @@
+<Window x:Class="MVVMComboBoxSample.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:MVVMComboBoxSample"
+        xmlns:vm ="clr-namespace:MVVMComboBoxSample.ViewModel"
+        mc:Ignorable="d"
+        Title="MainWindow" Height="350" Width="500">
+
+    <Window.Resources>
+        <vm:StudentViewModel x:Key="vm"/>
+    </Window.Resources>
+
+    <StackPanel DataContext="{Binding Source={StaticResource vm}}">
+        <ComboBox HorizontalAlignment="Center"
+                  Margin="10"
+                  VerticalAlignment="Top"
+                  Width="300"
+                  ItemsSource="{Binding Students}"
+                  SelectedItem="{Binding SelectedStudent}">
+            <ComboBox.ItemTemplate>
+                <DataTemplate>
+                    <StackPanel Orientation="Horizontal">
+                        <TextBlock Text="{Binding ID}"/>
+                        <TextBlock Text="-"/>
+                        <TextBlock Text="{Binding Name}"/>
+                        <TextBlock Text="-"/>
+                        <TextBlock Text="{Binding Age}"/>
+                    </StackPanel>
+                </DataTemplate>
+            </ComboBox.ItemTemplate>
+        </ComboBox>
+    </StackPanel>
+</Window>

PacticeSolution/MVVMComboBoxSample/MainWindow.xaml.cs

@@ -0,0 +1,28 @@
+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.Navigation;
+using System.Windows.Shapes;
+
+namespace MVVMComboBoxSample
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+    }
+}

PacticeSolution/MVVMComboBoxSample/Model/Student.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MVVMComboBoxSample.Model
+{
+    internal class Student
+    {
+        public string ID { get; set; }
+
+        public string Name { get; set; }
+
+        public int Age { get; set; }
+    }
+}

PacticeSolution/MVVMComboBoxSample/ViewModel/StudentViewModel.cs

@@ -0,0 +1,28 @@
+using MVVMComboBoxSample.Model;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MVVMComboBoxSample.ViewModel
+{
+    internal class StudentViewModel
+    {
+        public ObservableCollection<Student> Students { get; set; }
+
+        public Student SelectedStudent { get; set; }
+
+        public StudentViewModel()
+        {
+            this.Students = new ObservableCollection<Student>()
+            {
+                new Student() { ID = Guid.NewGuid().ToString(), Name = "Joe", Age = 20 },
+                new Student() { ID = Guid.NewGuid().ToString(), Name = "Jane", Age = 21 },
+                new Student() { ID = Guid.NewGuid().ToString(), Name = "Rick", Age = 22 },
+                new Student() { ID = Guid.NewGuid().ToString(), Name = "Paul", Age = 23 },
+            };
+        }
+    }
+}

PacticeSolution/PacticeSolution.sln

@@ -31,6 +31,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ImageLoader", "ImageLoader\
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "XamlUISample", "XamlUISample\XamlUISample.csproj", "{CBB0126E-291E-47F0-82D4-B7D78439BC4C}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DependencyPropertySample", "DependencyProperty\DependencyPropertySample.csproj", "{7DED7470-62BB-4042-B161-98F9605046B2}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MVVMComboBoxSample", "MVVMComboBoxSample\MVVMComboBoxSample.csproj", "{86DDE4C6-1359-4EB7-BEE6-13EC137F081D}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -93,6 +97,14 @@ Global
 		{CBB0126E-291E-47F0-82D4-B7D78439BC4C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{CBB0126E-291E-47F0-82D4-B7D78439BC4C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{CBB0126E-291E-47F0-82D4-B7D78439BC4C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7DED7470-62BB-4042-B161-98F9605046B2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7DED7470-62BB-4042-B161-98F9605046B2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7DED7470-62BB-4042-B161-98F9605046B2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7DED7470-62BB-4042-B161-98F9605046B2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{86DDE4C6-1359-4EB7-BEE6-13EC137F081D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{86DDE4C6-1359-4EB7-BEE6-13EC137F081D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{86DDE4C6-1359-4EB7-BEE6-13EC137F081D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{86DDE4C6-1359-4EB7-BEE6-13EC137F081D}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE