Contains Element? : Panel « Windows Presentation Foundation « C# / C Sharp

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C# / C Sharp » Windows Presentation Foundation » PanelScreenshots 
Contains Element?
Contains Element?
  
<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="ContainsElement">
            <TabItem.Header>Contains Element?</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 ContainsElement(object sender, RoutedEventArgs e)
        {
            sp1.Children.Clear();
            btn = new Button();
      btn.Content = "Click to clear";
            sp1.Children.Add(btn);
            btn.Click += (ClearControls);
      btn1 = new Button();
      btn1.Content = "Click to clear";
            sp1.Children.Add(btn1);
            btn1.Click += (ClearControls);
      btn2 = new Button();
      btn2.Content = "Click to clear";
            sp1.Children.Add(btn2);
            btn2.Click += (ClearControls);
      btn3 = new Button();
      btn3.Content = "Click to clear";
            sp1.Children.Add(btn3);
            btn3.Click += (ClearControls);

            TextBlock txt1 = new TextBlock();
            sp1.Children.Add(txt1);
            txt1.Text = "This StackPanel contains UIElement btn1: " + sp1.Children.Contains(btn1).ToString();
        }
        
    void ClearControls(object sender, RoutedEventArgs e)
    {
            sp1.Children.Clear();
        }        
  }
}

   
    
  
Related examples in the same category
1.Add a control to a PanelAdd a control to a Panel
2.Remove Control from a PanelRemove Control from a Panel
3.Insert Button to a PanelInsert Button to a Panel
4.Add child controlAdd child control
5.Show Index of ControlsShow Index of Controls
6.Clear ControlsClear Controls
7.UIElement CountUIElement Count
8.Get Item At Index Position [0]Get Item At Index Position [0]
9.Panel is setting the data context to the scrollbar objectPanel is setting the data context to the scrollbar object
10.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
11.Insert to a Panel by indexInsert to a Panel by index
12.Get all children from a PanelGet all children from a Panel
13.Search for an element by using Panel.FindName()Search for an element by using Panel.FindName()
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