Add an event handler to an element using code

   

<StackPanel
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  x:Class="WpfApplication1.RoutedEventAddRemoveHandler" 
  Name="root">
    <StackPanel.Resources>
      <Style TargetType="{x:Type Button}">
        <Setter Property="Height" Value="20"/>
        <Setter Property="Width" Value="250"/>
        <Setter Property="HorizontalAlignment" Value="Left"/>
      </Style>
    </StackPanel.Resources>
  <TextBlock Name="text1">Clicking the button below</TextBlock>
  <Button Name="b1" Click="MakeButton">Make new button and add handler to it</Button>
</StackPanel>
//File:Window.xaml.cs

using System.Windows;
using System.Windows.Controls;

namespace WpfApplication1 {
    public partial class RoutedEventAddRemoveHandler {
        
        void MakeButton(object sender, RoutedEventArgs e)
        {
            Button b2 = new Button();
            b2.Content = "New Button";
            // You can remove the event handler using "-=" syntax rather than "+=".
            b2.Click  += new RoutedEventHandler(Onb2Click);
            root.Children.Insert(root.Children.Count, b2);
            DockPanel.SetDock(b2, Dock.Top);
            text1.Text = "click me...";
            b1.IsEnabled = false;
        }
        void Onb2Click(object sender, RoutedEventArgs e)
        {
            text1.Text = "New Button (b2) Was Clicked!!";
        }
    }
}

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Add an event handler to an element using code : Event « Windows Presentation Foundation « C# / C Sharp

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