Embedded code for Application

Posted on February 11, 2011June 27, 2015 by coder

   
      
<Application x:Class="SimpleXamlApp.MyApp"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    StartupUri="MainWindow.xaml" Exit ="AppExit"
    >
  <x:Code>
    void AppExit(object sender, ExitEventArgs e)
    {
      MessageBox.Show("App has exited");
    }
  </x:Code>
</Application>

Set button properties with Linq style

Posted on February 11, 2011June 27, 2015 by coder


   
  

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="250" Width="250" Loaded="Window_Loaded">
    <Canvas Name="canvas1">
    </Canvas>
</Window>
//File:Window.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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 WpfApplication1
{

    public partial class Window1 : Window
    {
        Button button1 = null;
        Button button2 = null;
        Button button3 = null;

        public Window1()
        {
            InitializeComponent();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            button1 = new Button { Content = "Button", Width = 70, Height = 23 };
            Canvas.SetLeft(button1, 119);
            Canvas.SetTop(button1, 24);
            canvas1.Children.Add(button1);
            button2 = new Button { Content = "Wider" };
            Canvas.SetLeft(button2, 44);
            Canvas.SetTop(button2, 69);
            canvas1.Children.Add(button2);
            button3 = new Button { Content = "Button" };
            Canvas.SetLeft(button3, 78);
            Canvas.SetTop(button3, 119);
            button3.Padding = new Thickness(10, 2, 10, 2);
            canvas1.Children.Add(button3);
        }
    }
}

Xaml and Code behind

Posted on February 11, 2011June 27, 2015 by coder


   
  

<Window
  x:Class="WpfApplication1.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="Hello, WPF">
  <Button x:Name="button" Width="200" Height="25" Click="button_Click">Click me</Button>
</Window>



//File:Window.xaml.cs
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Media;
using System.Windows.Shapes;


namespace WpfApplication1{
  public partial class Window1 : Window {
    public Window1() {
      InitializeComponent();
    }

    void button_Click(object sender, RoutedEventArgs e) {
      MessageBox.Show("You", "Nice!");
    }
  }
}

Use Linq to get control from a container

Posted on February 11, 2011June 27, 2015 by coder


   
  

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="WPF" SizeToContent="Height" Width="300">
    <Grid Name="grid">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <Border Grid.Column="0" BorderBrush="Gray" BorderThickness="1" />
        <Border Grid.Column="1" BorderBrush="Gray" BorderThickness="1" />
        <StackPanel Grid.Column="0" HorizontalAlignment="Center" Margin="5" Name="spLeftContainer">
            <TextBlock FontSize="16" Text="Radio Group 1" />
            <RadioButton Content="Radio Button 1A" GroupName="Group1" IsChecked="True" Margin="5" Name="rbnOneA" />
            <RadioButton Content="Radio Button 1B" GroupName="Group1" Margin="5" Name="rbnOneB" />
            <RadioButton Content="Radio Button 1C" GroupName="Group1" Margin="5" Name="rbnOneC" />
            <Separator/>
            <TextBlock FontSize="16" Text="Radio Group 2" />
            <RadioButton Checked="RadioButton_Checked" GroupName="Group2" Content="Radio Button 2A" IsChecked="True" 
                         Margin="5" Name="rbnTwoA" />
            <RadioButton Checked="RadioButton_Checked" GroupName="Group2" Content="Radio Button 2B" Margin="5" Name="rbnTwoB"/>
            <RadioButton Checked="RadioButton_Checked" GroupName="Group2" Content="Radio Button 2C" Margin="5" Name="rbnTwoC"/>
        </StackPanel>
        <StackPanel Grid.Column="1" HorizontalAlignment="Center" Margin="5" Name="spRightContainer">
            <TextBlock FontSize="16" Text="Radio Group 1" />
            <RadioButton Content="Radio Button 1D" GroupName="Group1" Margin="5" Name="rbnOneD" />
            <RadioButton Content="Radio Button 1E" GroupName="Group1" Margin="5" Name="rbnOneE" />
        </StackPanel>
        <Button Content="Show Group1 Selection" Grid.ColumnSpan="2" Grid.Row="1" HorizontalAlignment="Center" 
                Margin="10" MaxHeight="25" Click="Button_Click" />
    </Grid>
</Window>

//File:Window.xaml.cs
using System;
using System.Linq;
using System.Windows;
using System.Windows.Controls;

namespace WpfApplication1
{
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
        }
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            RadioButton radioButton = null;
            radioButton = GetCheckedRadioButton(spLeftContainer.Children, "Group1");
            if (radioButton == null)
            {
                radioButton = GetCheckedRadioButton(spRightContainer.Children, "Group1");
            }
            MessageBox.Show(radioButton.Content + " checked.", Title);
        }
        private RadioButton GetCheckedRadioButton(UIElementCollection children, String groupName)
        {
            return children.OfType<RadioButton>().FirstOrDefault( rb => rb.IsChecked == true &amp;&amp; rb.GroupName == groupName);
        }
        private void RadioButton_Checked(object sender, RoutedEventArgs e)
        {
            if (!this.IsInitialized) return;
            RadioButton radioButton = e.OriginalSource as RadioButton;

            if (radioButton != null)
            {
                MessageBox.Show(radioButton.Content + " checked.", Title);
            }
        }
    }
}

My First WPF App with code behind

Posted on February 11, 2011June 27, 2015 by coder


   
  

<Window x:Class="MyFirstWPFApp.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MyFirstWPFApp" Height="336" Width="343">
  <Grid>      
      <Button Click="MyClickEvent" VerticalAlignment="Top" HorizontalAlignment="Left"
         Grid.Column="0" Grid.ColumnSpan="1" Grid.Row="0" Grid.RowSpan="1" Margin="43,61,0,0"
         Width="75" Height="23" Name="btnGo">
        Go
      </Button>

    </Grid>
  
</Window>
//File:Window.xaml.cs

using System;
using System.Collections.Generic;
using System.Text;
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 MyFirstWPFApp
{
    public partial class Window1 : System.Windows.Window
    {

        private void MyClickEvent(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("A!", "Message", MessageBoxButton.OK, MessageBoxImage.Hand);
        }

        public Window1()
        {
            InitializeComponent();
        }

    }
}

Create Button from Xaml string

Posted on February 11, 2011June 27, 2015 by coder


   
  
<Window x:Class="WpfApplication1.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="DynamicXAML" Height="300" Width="300">
  <Grid Name="grid1" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Window>
//File:Window.xaml.cs

using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Markup;
using System.Xml;
using System.IO;

namespace WpfApplication1
{

  public partial class Window1 : System.Windows.Window
  {

    public Window1()
    {
      InitializeComponent();

      StringReader sr = new StringReader(@"<Button xmlns=&#039;http://schemas.microsoft.com/winfx/2006/xaml/presentation&#039; 
        Foreground=&#039;BurlyWood&#039; FontSize=&#039;20pt&#039;>Click Me!</Button>");

      XmlReader reader = XmlReader.Create(sr);

      Button dynamicButton = (Button)XamlReader.Load(reader);

      this.grid1.Children.Add(dynamicButton);

      dynamicButton.Click += button1_Click;
   
    }

    private void button1_Click(object sender, RoutedEventArgs e)
    {
      MessageBox.Show("Dynamic Button Loaded From XAML String");
    }

  }
}

Reference name defined in Xaml in cs file

Posted on February 11, 2011June 27, 2015 by coder


   
  
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  x:Class="WpfApplication1.IndexOfSample" 
  WindowTitle="UIElementCollection IndexOf Sample">
    <DockPanel Name="ParentElement">
        <TextBlock DockPanel.Dock="Top" Name="TxtDisplay"></TextBlock>

        <Button DockPanel.Dock="Top" Click="FindIndex">What is the Index Number
            of the Element Just Added?</Button>
        <DockPanel Name="MainDisplayPanel">
            <TextBlock DockPanel.Dock="Top">Text 1</TextBlock>
            <TextBlock DockPanel.Dock="Top">Text 2</TextBlock>
        </DockPanel>
    </DockPanel>
</Page>

//File:Window.xaml.cs

namespace WpfApplication1 {
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Documents;

    public partial class IndexOfSample {

    
    void FindIndex(object sender, RoutedEventArgs e)
    {
      TextBlock newText = new TextBlock();
      MainDisplayPanel.Children.Add(newText);
      newText.Text = "New element #" ;
      DockPanel.SetDock(newText,Dock.Top);
      TxtDisplay.Text = MainDisplayPanel.Children.IndexOf(newText)+"";
    }
  }
}

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