Control.EnabledChanged 이벤트


Enabled 속성 값이 변경되면 발생합니다.Occurs when the Enabled property value has changed.

 event EventHandler ^ EnabledChanged;
public event EventHandler EnabledChanged;
member this.EnabledChanged : EventHandler 
Public Custom Event EnabledChanged As EventHandler 


다음 코드 예제에서는 두 개의 RadioButton 컨트롤을 사용 하 여 EnabledChanged 이벤트를 보여 줍니다.The following code example uses two RadioButton controls to demonstrate the EnabledChanged event. 한 단추를 클릭 하면 다른 단추의 Enabled 속성 값이 false으로 바뀌고 MessageBox표시 됩니다.Clicking one button changes the value of the Enabled property of the other button to false and displays a MessageBox.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

public class Form1 : Form
    private RadioButton radioButton1;
    private RadioButton radioButton2;

    public Form1()
    static void Main()
        Application.Run(new Form1());

    private void InitializeComponent()
        this.radioButton1 = new System.Windows.Forms.RadioButton();
        this.radioButton2 = new System.Windows.Forms.RadioButton();
        // radioButton1
        this.radioButton1.AutoSize = true;
        this.radioButton1.Location = new System.Drawing.Point(0, 0);
        this.radioButton1.Name = "radioButton1";
        this.radioButton1.Size = new System.Drawing.Size(62, 17);
        this.radioButton1.TabIndex = 0;
        this.radioButton1.TabStop = true;
        this.radioButton1.Text = "Button1";
        this.radioButton1.UseVisualStyleBackColor = true;
        this.radioButton1.EnabledChanged += new System.EventHandler(this.radioButton1_EnabledChanged);
        // radioButton2
        this.radioButton2.AutoSize = true;
        this.radioButton2.Location = new System.Drawing.Point(0, 39);
        this.radioButton2.Name = "radioButton2";
        this.radioButton2.Size = new System.Drawing.Size(100, 17);
        this.radioButton2.TabIndex = 1;
        this.radioButton2.TabStop = true;
        this.radioButton2.Text = "Disable Button1";
        this.radioButton2.UseVisualStyleBackColor = true;
        this.radioButton2.CheckedChanged += new System.EventHandler(this.radioButton2_CheckedChanged);
        // Form1
        this.ClientSize = new System.Drawing.Size(292, 273);
        this.Name = "Form1";

    private void radioButton2_CheckedChanged(object sender, EventArgs e)
        radioButton1.Enabled = false;

    private void radioButton1_EnabledChanged(object sender, EventArgs e)
        MessageBox.Show("This button has been disabled.");
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Text
Imports System.Windows.Forms

Public Class Form1
   Inherits Form
   Private WithEvents radioButton1 As RadioButton
   Private WithEvents radioButton2 As RadioButton
   Public Sub New()
   End Sub
   <STAThread()>  _
   Shared Sub Main()
      Application.Run(New Form1())
   End Sub
   Private Sub InitializeComponent()
      Me.radioButton1 = New System.Windows.Forms.RadioButton()
      Me.radioButton2 = New System.Windows.Forms.RadioButton()
      ' radioButton1
      Me.radioButton1.AutoSize = True
      Me.radioButton1.Location = New System.Drawing.Point(0, 0)
      Me.radioButton1.Name = "radioButton1"
      Me.radioButton1.Size = New System.Drawing.Size(62, 17)
      Me.radioButton1.TabIndex = 0
      Me.radioButton1.TabStop = True
      Me.radioButton1.Text = "Button1"
      Me.radioButton1.UseVisualStyleBackColor = True
      ' radioButton2
      Me.radioButton2.AutoSize = True
      Me.radioButton2.Location = New System.Drawing.Point(0, 39)
      Me.radioButton2.Name = "radioButton2"
      Me.radioButton2.Size = New System.Drawing.Size(100, 17)
      Me.radioButton2.TabIndex = 1
      Me.radioButton2.TabStop = True
      Me.radioButton2.Text = "Disable Button1"
      Me.radioButton2.UseVisualStyleBackColor = True
      ' Form1
      Me.ClientSize = New System.Drawing.Size(292, 273)
      Me.Name = "Form1"
   End Sub
   Private Sub radioButton2_CheckedChanged(sender As Object, e As EventArgs) Handles radioButton2.CheckedChanged
      radioButton1.Enabled = False
   End Sub
   Private Sub radioButton1_EnabledChanged(sender As Object, e As EventArgs) Handles radioButton1.EnabledChanged
      MessageBox.Show("This button has been disabled.")
   End Sub
End Class


이 이벤트가 발생 하는 경우는 Enabled 속성을 프로그래밍 방식으로 수정 하거나 사용자 상호 작용 하 여 변경 됩니다.This event is raised if the Enabled property is changed by either a programmatic modification or user interaction.

이벤트 처리에 대한 자세한 내용은 이벤트 처리 및 발생 을 참조하십시오.For more information about handling events, see Handling and Raising Events.

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