Show Index of Controls : Panel « Windows Presentation Foundation « C# / CSharp Tutorial

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C# / CSharp Tutorial » Windows Presentation Foundation » Panel 
24.55.5.Show Index of Controls
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Class="ElemCollMethods.Pane1"
    WindowTitle="UI Element Collection Methods Sample">
 <StackPanel>
    <TextBlock Name="txt" FontSize="16">UI Element Collection - Methods</TextBlock>

    <TabControl>
        <TabItem MouseLeftButtonUp="ShowIndex">
            <TabItem.Header>Show Index of Controls</TabItem.Header>
        </TabItem>
    </TabControl>
    <StackPanel Name="sp1"></StackPanel>

 </StackPanel>
</Page>

//File:Window.xaml.cs
using System;
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.Input;

namespace ElemCollMethods
{

  public partial class Pane1 : Page
  {
    System.Windows.Controls.Button btn, btn1, btn2, btn3;


    void ShowIndex(object sender, MouseButtonEventArgs e)
    {
            sp1.Children.Clear();
            btn = new Button();
      btn.Content = "Click for index";
      btn.Click += (PrintIndex);
            sp1.Children.Add(btn);

            btn1 = new Button();
      btn1.Content = "Click for index";
            sp1.Children.Add(btn1);
            btn1.Click += (PrintIndex1);

      btn2 = new Button();
      btn2.Content = "Click for index";
            sp1.Children.Add(btn2);
            btn2.Click += (PrintIndex2);

      btn3 = new Button();
      btn3.Content = "Click for index";
            sp1.Children.Add(btn3);
            btn3.Click += (PrintIndex3);

    }
    void PrintIndex(object sender, RoutedEventArgs e)
    {
            btn.Content = ((sp1.Children.IndexOf(btn)).ToString());
        }
    void PrintIndex1(object sender, RoutedEventArgs e)
    {
            btn1.Content = ((sp1.Children.IndexOf(btn1)).ToString());
        }
    void PrintIndex2(object sender, RoutedEventArgs e)
    {
            btn2.Content = ((sp1.Children.IndexOf(btn2)).ToString());
        }
    void PrintIndex3(object sender, RoutedEventArgs e)
    {
            btn3.Content = ((sp1.Children.IndexOf(btn3)).ToString());
        }
  }
}
WPF Show Index Of Controls
24.55.Panel
24.55.1.Add a control to a PanelAdd a control to a Panel
24.55.2.Remove Control from a PanelRemove Control from a Panel
24.55.3.Insert Button to a PanelInsert Button to a Panel
24.55.4.Add child controlAdd child control
24.55.5.Show Index of ControlsShow Index of Controls
24.55.6.Clear ControlsClear Controls
24.55.7.Contains Element?Contains Element?
24.55.8.UIElement CountUIElement Count
24.55.9.Get Item At Index Position [0]Get Item At Index Position [0]
24.55.10.Panel is setting the data context to the scrollbar objectPanel 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 methodFind the index number of a newly added element within a panel, using the IndexOf method
24.55.12.Insert to a Panel by indexInsert to a Panel by index
24.55.13.Get all children from a PanelGet all children from a Panel
24.55.14.Search for an element by using Panel.FindName()Search for an element by using Panel.FindName()
24.55.15.Panel.ZIndexPanel.ZIndex
24.55.16.Without Panel.ZIndexWithout Panel.ZIndex
24.55.17.Override the default layout behavior of the Panel element and create custom layout elements that are derived from Panel.
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