[C#/WPF] UIElement 클래스 : 라우팅 이벤트 추적하기

■ UIElement 클래스를 사용해 라우팅 이벤트를 추적하는 방법을 보여준다.

▶ MainWindow.xaml


<Window x:Class="TestProject.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="800"
    Height="600"
    Title="UIElement 클래스 : 라우팅 이벤트 추적하기"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Grid Name="grid">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*"    />
        </Grid.RowDefinitions>
        <Button Name="button"
            HorizontalAlignment="Center"
            Margin="10"
            MinWidth="120"
            Padding="5">
            <TextBlock Name="buttonTextBlock"
                Text="테스트" />
        </Button>
        <TextBlock Name="headerTextBlock" Grid.Row="1" />
        <ScrollViewer Grid.Row="2">
            <StackPanel Name="outputStackPanel" />
        </ScrollViewer>
    </Grid>
</Window>

<Window x:Class="TestProject.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Width="800"

Height="600"

Title="UIElement 클래스 : 라우팅 이벤트 추적하기"

FontFamily="나눔고딕코딩"

FontSize="16">

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<Button Name="button"

HorizontalAlignment="Center"

Margin="10"

MinWidth="120"

Padding="5">

<TextBlock Name="buttonTextBlock"

Text="테스트" />

</Button>

</ScrollViewer>

</Grid>

</Window>

▶ MainWindow.xaml.cs


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

namespace TestProject
{
    /// <summary>
    /// 메인 윈도우
    /// </summary>
    public partial class MainWindow : Window
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>
        /// 포맷 문자열
        /// </summary>
        private const string FORMAT_STRING = "{0,-30} {1,-15} {2,-15} {3,-15}";

        /// <summary>
        /// 마지막 시간
        /// </summary>
        private DateTime lastTime;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainWindow()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainWindow()
        {
            InitializeComponent();

            string headerString = string.Format
            (
                FORMAT_STRING,
                "Routed Event",
                "sender",
                "Source",
                "OriginalSource"
            );

            this.headerTextBlock.Inlines.Add(new Underline(new Run(headerString)));

            UIElement[] elementArray = { this, this.grid, this.button, this.buttonTextBlock };

            foreach(UIElement element in elementArray)
            {
                // 키보드
                element.PreviewKeyDown   += element_EventHandler;
                element.PreviewKeyUp     += element_EventHandler;
                element.PreviewTextInput += element_EventHandler;
                element.KeyDown          += element_EventHandler;
                element.KeyUp            += element_EventHandler;
                element.TextInput        += element_EventHandler;

                // 마우스
                element.MouseDown        += element_EventHandler;
                element.MouseUp          += element_EventHandler;
                element.PreviewMouseDown += element_EventHandler;
                element.PreviewMouseUp   += element_EventHandler;

                // 스타일러스
                element.StylusDown        += element_EventHandler;
                element.StylusUp          += element_EventHandler;
                element.PreviewStylusDown += element_EventHandler;
                element.PreviewStylusUp   += element_EventHandler;

                element.AddHandler(Button.ClickEvent, new RoutedEventHandler(element_EventHandler));
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 엘리먼트 이벤트 핸들러 처리하기 - element_EventHandler(sender, e)

        /// <summary>
        /// 엘리먼트 이벤트 핸들러 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void element_EventHandler(object sender, RoutedEventArgs e)
        {
            DateTime currentTime = DateTime.Now;

            if(currentTime - this.lastTime > TimeSpan.FromMilliseconds(100))
            {
                this.outputStackPanel.Children.Add(new TextBlock(new Run(" ")));
            }

            this.lastTime = currentTime;

            TextBlock textBlock = new TextBlock();

            textBlock.Text = string.Format
            (
                FORMAT_STRING,
                e.RoutedEvent.Name,
                GetTypeNameWithoutNamespace(sender),
                GetTypeNameWithoutNamespace(e.Source),
                GetTypeNameWithoutNamespace(e.OriginalSource)
            );

            this.outputStackPanel.Children.Add(textBlock);

            (this.outputStackPanel.Parent as ScrollViewer).ScrollToBottom();
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 네임스페이스 없는 타입명 구하기 - GetTypeNameWithoutNamespace(source)

        /// <summary>
        /// 네임스페이스 없는 타입명 구하기
        /// </summary>
        /// <param name="source">소스 객체</param>
        /// <returns>네임스페이스 없는 타입명</returns>
        private string GetTypeNameWithoutNamespace(object source)
        {
            string[] itemArray = source.GetType().ToString().Split('.');

            return itemArray[itemArray.Length - 1];
        }

        #endregion
    }
}

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using System;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

namespace TestProject

{

/// <summary>

/// 메인 윈도우

/// </summary>

public partial class MainWindow : Window

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Field

////////////////////////////////////////////////////////////////////////////////////////// Private

#region Field

/// <summary>

/// 포맷 문자열

/// </summary>

private const string FORMAT_STRING = "{0,-30} {1,-15} {2,-15} {3,-15}";

/// <summary>

/// 마지막 시간

/// </summary>

private DateTime lastTime;

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainWindow()

/// <summary>

/// 생성자

/// </summary>

public MainWindow()

{

InitializeComponent();

string headerString = string.Format

(

FORMAT_STRING,

"Routed Event",

"sender",

"Source",

"OriginalSource"

);

this.headerTextBlock.Inlines.Add(new Underline(new Run(headerString)));

UIElement[] elementArray = { this, this.grid, this.button, this.buttonTextBlock };

foreach(UIElement element in elementArray)

{

// 키보드

element.PreviewKeyDown += element_EventHandler;

element.PreviewKeyUp += element_EventHandler;

element.PreviewTextInput += element_EventHandler;

element.KeyDown += element_EventHandler;

element.KeyUp += element_EventHandler;

element.TextInput += element_EventHandler;

// 마우스

element.MouseDown += element_EventHandler;

element.MouseUp += element_EventHandler;

element.PreviewMouseDown += element_EventHandler;

element.PreviewMouseUp += element_EventHandler;

// 스타일러스

element.StylusDown += element_EventHandler;

element.StylusUp += element_EventHandler;

element.PreviewStylusDown += element_EventHandler;

element.PreviewStylusUp += element_EventHandler;

element.AddHandler(Button.ClickEvent, new RoutedEventHandler(element_EventHandler));

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Private

//////////////////////////////////////////////////////////////////////////////// Event

#region 엘리먼트 이벤트 핸들러 처리하기 - element_EventHandler(sender, e)

/// <summary>

/// 엘리먼트 이벤트 핸들러 처리하기

/// </summary>

/// <param name="sender">이벤트 발생자</param>

/// <param name="e">이벤트 인자</param>

private void element_EventHandler(object sender, RoutedEventArgs e)

{

DateTime currentTime = DateTime.Now;

if(currentTime - this.lastTime > TimeSpan.FromMilliseconds(100))

{

this.outputStackPanel.Children.Add(new TextBlock(new Run(" ")));

}

this.lastTime = currentTime;

TextBlock textBlock = new TextBlock();

textBlock.Text = string.Format

(

FORMAT_STRING,

e.RoutedEvent.Name,

GetTypeNameWithoutNamespace(sender),

GetTypeNameWithoutNamespace(e.Source),

GetTypeNameWithoutNamespace(e.OriginalSource)

);

this.outputStackPanel.Children.Add(textBlock);

(this.outputStackPanel.Parent as ScrollViewer).ScrollToBottom();

}

#endregion

//////////////////////////////////////////////////////////////////////////////// Function

#region 네임스페이스 없는 타입명 구하기 - GetTypeNameWithoutNamespace(source)

/// <summary>

/// 네임스페이스 없는 타입명 구하기

/// </summary>

/// <param name="source">소스 객체</param>

/// <returns>네임스페이스 없는 타입명</returns>

private string GetTypeNameWithoutNamespace(object source)

{

string[] itemArray = source.GetType().ToString().Split('.');

return itemArray[itemArray.Length - 1];

}

#endregion

}

TestProject.zip