How to: Loop a Sound Playing on a Windows Form
The following code example plays a sound repeatedly. When the code in the stopPlayingButton_Click event handler runs, any sound currently playing stops. If no sound is playing, nothing happens.
Example
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Media;
using System.Windows.Forms;
namespace SoundPlayerPlayLoopingExample
{
public class Form1 : Form
{
private SoundPlayer Player = new SoundPlayer();
public Form1()
{
InitializeComponent();
}
private void playLoopingButton_Click(object sender, EventArgs e)
{
try
{
// Note: You may need to change the location specified based on
// the sounds loaded on your computer.
this.Player.SoundLocation = @"C:\Windows\Media\chimes.wav";
this.Player.PlayLooping();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error playing sound");
}
}
private void stopPlayingButton_Click(object sender, EventArgs e)
{
this.Player.Stop();
}
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.playLoopingButton = new System.Windows.Forms.Button();
this.stopPlayingButton = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// playLoopingButton
//
this.playLoopingButton.Location = new System.Drawing.Point(12, 12);
this.playLoopingButton.Name = "playLoopingButton";
this.playLoopingButton.Size = new System.Drawing.Size(87, 23);
this.playLoopingButton.TabIndex = 0;
this.playLoopingButton.Text = "Play Looping";
this.playLoopingButton.UseVisualStyleBackColor = true;
this.playLoopingButton.Click += new System.EventHandler(this.playLoopingButton_Click);
//
// stopPlayingButton
//
this.stopPlayingButton.Location = new System.Drawing.Point(105, 12);
this.stopPlayingButton.Name = "stopPlayingButton";
this.stopPlayingButton.Size = new System.Drawing.Size(75, 23);
this.stopPlayingButton.TabIndex = 1;
this.stopPlayingButton.Text = "Stop";
this.stopPlayingButton.UseVisualStyleBackColor = true;
this.stopPlayingButton.Click += new System.EventHandler(this.stopPlayingButton_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(195, 51);
this.Controls.Add(this.stopPlayingButton);
this.Controls.Add(this.playLoopingButton);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.Button playLoopingButton;
private System.Windows.Forms.Button stopPlayingButton;
}
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.Run(new Form1());
}
}
}
Imports System.Media
Imports System.Windows.Forms
Public Class Form1
Inherits System.Windows.Forms.Form
Private Player As New SoundPlayer
Sub New()
Me.InitializeComponent()
End Sub
Private Sub playLoopingButton_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles playLoopingButton.Click
Try
' Note: You may need to change the location specified based on
' the sounds loaded on your computer.
Me.Player.SoundLocation = "C:\Windows\Media\chimes.wav"
Me.Player.PlayLooping()
Catch ex As Exception
MessageBox.Show(ex.Message, "Error playing sound")
End Try
End Sub
Private Sub stopPlayingButton_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles stopPlayingButton.Click
Me.Player.Stop()
End Sub
'Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
Friend WithEvents playLoopingButton As System.Windows.Forms.Button
Friend WithEvents stopPlayingButton As System.Windows.Forms.Button
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.playLoopingButton = New System.Windows.Forms.Button
Me.stopPlayingButton = New System.Windows.Forms.Button
Me.SuspendLayout()
'
'playLoopingButton
'
Me.playLoopingButton.Location = New System.Drawing.Point(12, 12)
Me.playLoopingButton.Name = "playLoopingButton"
Me.playLoopingButton.Size = New System.Drawing.Size(89, 23)
Me.playLoopingButton.TabIndex = 0
Me.playLoopingButton.Text = "Play Looping"
Me.playLoopingButton.UseVisualStyleBackColor = True
'
'stopPlayingButton
'
Me.stopPlayingButton.Location = New System.Drawing.Point(107, 12)
Me.stopPlayingButton.Name = "stopPlayingButton"
Me.stopPlayingButton.Size = New System.Drawing.Size(75, 23)
Me.stopPlayingButton.TabIndex = 1
Me.stopPlayingButton.Text = "Stop"
Me.stopPlayingButton.UseVisualStyleBackColor = True
'
'Form1
'
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(197, 52)
Me.Controls.Add(Me.stopPlayingButton)
Me.Controls.Add(Me.playLoopingButton)
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
<STAThread()> _
Shared Sub Main()
Application.EnableVisualStyles()
Application.Run(New Form1())
End Sub
End Class
Compiling the Code
This example requires:
References to the System and System.Windows.Forms assemblies.
That you replace the file name
"c:\Windows\Media\chimes.wav"with a valid file name.
Robust Programming
File operations should be enclosed within appropriate exception-handling blocks.
The following conditions may cause an exception:
The path name is malformed. For example, it contains characters that are not valid or it is only white space (ArgumentException class).
The path is read-only (IOException class).
The path name is
Nothing(ArgumentNullException class).The path name is too long (PathTooLongException class).
The path is invalid (DirectoryNotFoundException class).
The path is only a colon ":" (NotSupportedException class).
.NET Framework Security
Do not make decisions about the contents of the file based on the name of the file. For example, the file Form1.vb may not be a Visual Basic source file. Verify all inputs before using the data in your application.
See also
Samarbeta med oss på GitHub
Källan för det här innehållet finns på GitHub, där du även kan skapa och granska ärenden och pull-begäranden. Se vår deltagarguide för mer information.
.NET Desktop feedback