Get all children from a Panel : Panel « Windows Presentation Foundation « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Windows Presentation Foundation
3. Panel

<StackPanel Name="root"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  x:Class="WpfApplication1.DPClearValue">
    <StackPanel.Resources>
      <Style TargetType="Button">
        <Setter Property="Height" Value="20"/>
        <Setter Property="Width" Value="250"/>
        <Setter Property="HorizontalAlignment" Value="Left"/>
      </Style>
      <Style TargetType="Ellipse">
        <Setter Property="Height" Value="50"/>
        <Setter Property="Width" Value="50"/>
        <Setter Property="Fill" Value="Black"/>
      </Style>
      <Style TargetType="Rectangle">
        <Setter Property="Height" Value="50"/>
        <Setter Property="Width" Value="50"/>
        <Setter Property="Fill" Value="Blue"/>
      </Style>
      <Style TargetType="Polygon">
        <Setter Property="Points" Value="10,60 60,60 60,10"/>
        <Setter Property="Fill" Value="Blue"/>
      </Style>
      <Style x:Key="ShapeStyle" TargetType="Shape">
        <Setter Property="Fill" Value="Red"/>
      </Style>
    </StackPanel.Resources>
  <DockPanel Name="myDockPanel">
    <Ellipse Height="100"  Width="100" Style="{StaticResource ShapeStyle}"/>
    <Rectangle Height="100" Width="100"  Style="{StaticResource ShapeStyle}" />
    <Polygon Points="10,110 110,110 110,10" Style="{StaticResource ShapeStyle}"/>
  </DockPanel>
    <Button Name="RedButton" Click="MakeEverythingRed">Make everything red</Button>
    <Button Name="ClearButton" Click="RestoreDefaultProperties">
  Clear local values
  </Button>

</StackPanel>

//File:Window.xaml.cs


using System.Windows;
using System.Collections;
using System.Windows.Media;
using System.Windows.Controls;
using System.Windows.Shapes;

namespace WpfApplication1 {
    public partial class DPClearValue {

        void RestoreDefaultProperties(object sender, RoutedEventArgs e)
        {
            UIElementCollection uic = myDockPanel.Children;
            foreach (Shape uie in uic)
            {
                LocalValueEnumerator locallySetProperties = uie.GetLocalValueEnumerator();
                while (locallySetProperties.MoveNext())
                {
                    DependencyProperty propertyToClear = (DependencyProperty)locallySetProperties.Current.Property;
                    if (!propertyToClear.ReadOnly) { uie.ClearValue(propertyToClear); }
                }
            }
        }
        void MakeEverythingRed(object sender, RoutedEventArgs e)
        {
            UIElementCollection uic = myDockPanel.Children;
            foreach (Shape uie in uic) {uie.Fill = new SolidColorBrush(Colors.Red);}
        }
    }
}

24.55.Panel
	24.55.1.	Add a control to a Panel
	24.55.2.	Remove Control from a Panel
	24.55.3.	Insert Button to a Panel
	24.55.4.	Add child control
	24.55.5.	Show Index of Controls
	24.55.6.	Clear Controls
	24.55.7.	Contains Element?
	24.55.8.	UIElement Count
	24.55.9.	Get Item At Index Position [0]
	24.55.10.	Panel is setting the data context to the scrollbar object
	24.55.11.	Find the index number of a newly added element within a panel, using the IndexOf method
	24.55.12.	Insert to a Panel by index
	24.55.13.	Get all children from a Panel
	24.55.14.	Search for an element by using Panel.FindName()
	24.55.15.	Panel.ZIndex
	24.55.16.	Without Panel.ZIndex
	24.55.17.	Override the default layout behavior of the Panel element and create custom layout elements that are derived from Panel.