Fill up the ListBox with brush names

Posted on by coder
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<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        x:Class="WpfApplication1.CompileXamlWindow"
        Title="Compile XAML Window" 
        SizeToContent="WidthAndHeight" 
        ResizeMode="CanMinimize">
    <StackPanel>
        <Button HorizontalAlignment="Center" Margin="24" Click="ButtonOnClick">
            Click
        </Button>
        <Ellipse Name="elips" Width="200" Height="100" Margin="24" Stroke="Black"/>
        <ListBox Name="lstbox" Width="150" Height="150" Margin="24" SelectionChanged="ListBoxOnSelection" />
    </StackPanel>
</Window>
//File:Window.xaml.cs
using System;
using System.Reflection;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;

namespace WpfApplication1
{
    public partial class CompileXamlWindow : Window
    {

        public CompileXamlWindow()
        {
            InitializeComponent();
            
            foreach (PropertyInfo prop in typeof(Brushes).GetProperties())
                lstbox.Items.Add(prop.Name);
        }
        void ButtonOnClick(object sender, RoutedEventArgs args)
        {
            Button btn = sender as Button;
            MessageBox.Show(btn.Content + "&#039; has been clicked.");
        }
        void ListBoxOnSelection(object sender, SelectionChangedEventArgs args)
        {
            ListBox lstbox = sender as ListBox;
            string strItem = lstbox.SelectedItem as string;
            PropertyInfo prop = typeof(Brushes).GetProperty(strItem);
            elips.Fill = (Brush)prop.GetValue(null, null);
        }
    }
}

List box with text and non-text content in the list box items.

Posted on by coder
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<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:src="clr-namespace:ListBoxEvent"  
    x:Class="ListBoxEvent.Pane1">


  <StackPanel>
    <DockPanel Margin="10, 10, 3, 3" >
      <ListBox SelectionMode="Multiple">
        <DockPanel>
          <Image Source="datacat.png"/>
          <TextBlock>CAT</TextBlock>
        </DockPanel>
        <DockPanel>
          <Image Source="datadog.png"/>
          <TextBlock>DOG</TextBlock>
        </DockPanel>
        <DockPanel>
          <Image Source="datafish.png"/>
          <TextBlock>FISH</TextBlock>
        </DockPanel>
      </ListBox>
    </DockPanel>
  </StackPanel>

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

using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Data;
using System.Windows.Media;
using System.Collections.ObjectModel;

namespace ListBoxEvent
{

    public partial class Pane1 : Canvas
    {

        public Pane1() : base()
        {
            InitializeComponent();
        }
    }

}

This list box allows multiple user selections.

Posted on by coder
image_pdfimage_print


   
  

<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:src="clr-namespace:ListBoxEvent"  
    x:Class="ListBoxEvent.Pane1">


  <StackPanel>
    <DockPanel Margin="10, 10, 3, 3" >
      <ListBox SelectionMode="Multiple">
        <DockPanel>
          <Image Source="datacat.png"/>
          <TextBlock>CAT</TextBlock>
        </DockPanel>
        <DockPanel>
          <Image Source="datadog.png"/>
          <TextBlock>DOG</TextBlock>
        </DockPanel>
        <DockPanel>
          <Image Source="datafish.png"/>
          <TextBlock>FISH</TextBlock>
        </DockPanel>
      </ListBox>
    </DockPanel>
  </StackPanel>

</Canvas>

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

namespace ListBoxEvent
{

    public partial class Pane1 : Canvas
    {

        public Pane1() : base()
        {
            InitializeComponent();
        }
    }

}

List box that uses data binding to populate the list box items.

Posted on by coder
image_pdfimage_print


   
  

<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:src="clr-namespace:ListBoxEvent"  
    x:Class="ListBoxEvent.Pane1">
  <Canvas.Resources>
    <src:myColors x:Key="Colors"/>
  </Canvas.Resources>

    <StackPanel Margin="10, 10, 3, 3">
      <WrapPanel Width="500" Orientation="Horizontal" Name="rectanglesPanel">
        <WrapPanel.Resources>
          <Style TargetType="Rectangle">
            <Setter Property="Height" Value="20"/>
            <Setter Property="Width" Value="20"/>
            <Setter Property="Margin" Value="5"/>
          </Style>
        </WrapPanel.Resources>
      </WrapPanel>
      <ListBox Name="myListBox" HorizontalAlignment="Left" SelectionMode="Extended" 
            Width="265" Height="55" Background="HoneyDew" SelectionChanged="myListBox_SelectionChanged"
            ItemsSource="{Binding Source={StaticResource Colors}}" IsSynchronizedWithCurrentItem="true">
      </ListBox>
    </StackPanel>


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

using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Data;
using System.Windows.Media;
using System.Collections.ObjectModel;

namespace ListBoxEvent
{
    public class myColors : ObservableCollection<string>
    {
        public myColors()
        {
            Add("LightBlue");
            Add("Pink");
            Add("Red");
            Add("Purple");
            Add("Blue");
            Add("Green");
        }
    }
    public partial class Pane1 : Canvas
    {
        public Pane1() : base()
        {
            InitializeComponent();
        }
        void myListBox_SelectionChanged(object sender, SelectionChangedEventArgs args)
        {
            BrushConverter converter = new BrushConverter();
            foreach (string color in args.AddedItems)
            {
                if (GetRectangle(color) == null)
                {
                    Rectangle aRect = new Rectangle();
                    aRect.Fill = (Brush) converter.ConvertFrom(color);
                    aRect.Tag = color;
                    rectanglesPanel.Children.Add(aRect);
                }

            }
            foreach (string color in args.RemovedItems)
            {
                FrameworkElement removedItem = GetRectangle(color);
                if (removedItem != null)
                {
                    rectanglesPanel.Children.Remove(removedItem);
                }
            }
        }

        FrameworkElement GetRectangle(string color)
        {
            foreach (FrameworkElement rect in rectanglesPanel.Children)
            {
                if (rect.Tag.ToString() == color)
                    return rect;
            }

            return null;
        }

    }

}

This list box allows items to be selected in groups by using the SHIFT key and mouse or the CTRL key and space key.

Posted on by coder
image_pdfimage_print


   
  

<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:src="clr-namespace:ListBoxEvent"  
    x:Class="ListBoxEvent.Pane1">
  <Canvas.Resources>
    <src:myColors x:Key="Colors"/>
  </Canvas.Resources>

    <StackPanel Margin="10, 10, 3, 3">
      <WrapPanel Width="500" Orientation="Horizontal" Name="rectanglesPanel">
        <WrapPanel.Resources>
          <Style TargetType="Rectangle">
            <Setter Property="Height" Value="20"/>
            <Setter Property="Width" Value="20"/>
            <Setter Property="Margin" Value="5"/>
          </Style>
        </WrapPanel.Resources>
      </WrapPanel>
      <ListBox Name="myListBox" HorizontalAlignment="Left" SelectionMode="Extended" 
            Width="265" Height="55" Background="HoneyDew" SelectionChanged="myListBox_SelectionChanged"
            ItemsSource="{Binding Source={StaticResource Colors}}" IsSynchronizedWithCurrentItem="true">
      </ListBox>
    </StackPanel>


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

using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Data;
using System.Windows.Media;
using System.Collections.ObjectModel;

namespace ListBoxEvent
{
    public class myColors : ObservableCollection<string>
    {
        public myColors()
        {
            Add("LightBlue");
            Add("Pink");
            Add("Red");
            Add("Purple");
            Add("Blue");
            Add("Green");
        }
    }
    public partial class Pane1 : Canvas
    {
        public Pane1() : base()
        {
            InitializeComponent();
        }
        void myListBox_SelectionChanged(object sender, SelectionChangedEventArgs args)
        {
            BrushConverter converter = new BrushConverter();
            foreach (string color in args.AddedItems)
            {
                if (GetRectangle(color) == null)
                {
                    Rectangle aRect = new Rectangle();
                    aRect.Fill = (Brush) converter.ConvertFrom(color);
                    aRect.Tag = color;
                    rectanglesPanel.Children.Add(aRect);
                }

            }
            foreach (string color in args.RemovedItems)
            {
                FrameworkElement removedItem = GetRectangle(color);
                if (removedItem != null)
                {
                    rectanglesPanel.Children.Remove(removedItem);
                }
            }
        }

        FrameworkElement GetRectangle(string color)
        {
            foreach (FrameworkElement rect in rectanglesPanel.Children)
            {
                if (rect.Tag.ToString() == color)
                    return rect;
            }

            return null;
        }

    }

}

Select All and unselect all

Posted on by coder
image_pdfimage_print


   
  

<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:src="clr-namespace:ListBoxEvent"  
    x:Class="ListBoxEvent.Pane1">
  <Canvas.Resources>
    <src:myColors x:Key="Colors"/>
  </Canvas.Resources>

    <StackPanel Margin="10, 10, 3, 3">
      <ListBox Name="myListBox" HorizontalAlignment="Left" SelectionMode="Extended" 
            Width="265" Height="55"
            ItemsSource="{Binding Source={StaticResource Colors}}" IsSynchronizedWithCurrentItem="true">
      </ListBox>
      <StackPanel Orientation="Horizontal" Margin="10">
        <Button Content="_Select all" Click="selectAll_Click"/>
        <Button Content="_Unselect all" Click="unselectAll_Click"/>
      </StackPanel>
    </StackPanel>


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

using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Data;
using System.Windows.Media;
using System.Collections.ObjectModel;

namespace ListBoxEvent
{
    public class myColors : ObservableCollection<string>
    {
        public myColors()
        {
            Add("LightBlue");
            Add("Pink");
            Add("Red");
            Add("Purple");
            Add("Blue");
            Add("Green");
        }
    }
    public partial class Pane1 : Canvas
    {
        public Pane1() : base()
        {
            InitializeComponent();
        }
        void selectAll_Click(object sender, RoutedEventArgs e)
        {
            myListBox.SelectAll();
        }

        void unselectAll_Click(object sender, RoutedEventArgs e)
        {
            myListBox.UnselectAll();
        }
    }

}

Get selected item count from ListBox

Posted on by coder
image_pdfimage_print


   
  
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        x:Class="AboutDialog" ListBox.SelectionChanged="ListBox_SelectionChanged"
        Button.Click="Button_Click"
        Title="About WPF Unleashed" SizeToContent="WidthAndHeight"
        Background="OrangeRed">
  <StackPanel>
    <Label FontWeight="Bold" FontSize="20" Foreground="White">
      WPF
    </Label>
    <Label>License</Label>
    <Label>Installed Dll:</Label>
    <ListBox>
      <ListBoxItem>1</ListBoxItem>
      <ListBoxItem>2</ListBoxItem>
      <ListBoxItem>3</ListBoxItem>
      <ListBoxItem>4</ListBoxItem>
      <ListBoxItem>5</ListBoxItem>
      <ListBoxItem>6</ListBoxItem>
      <ListBoxItem>7</ListBoxItem>
      <ListBoxItem>8</ListBoxItem>
      <ListBoxItem>9</ListBoxItem>
    </ListBox>
    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
      <Button MinWidth="75" Margin="10">Help</Button>
      <Button MinWidth="75" Margin="10">OK</Button>
    </StackPanel>
    <StatusBar>test</StatusBar>
  </StackPanel>
</Window>
//File:Window.xaml.cs
using System.Windows;
using System.Windows.Controls;

public partial class AboutDialog : Window
{
    public AboutDialog()
    {
        InitializeComponent();
    }

    void ListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        if (e.AddedItems.Count > 0)
            MessageBox.Show("You just selected " + e.AddedItems[0]);
    }

    void Button_Click(object sender, RoutedEventArgs e)
    {
        MessageBox.Show("You just clicked " + e.Source);
    }
}