C'est parce que sender
n'est pas un objet de courrier, mais plutôt le bouton qui a déclenché l'événement. Vous avez besoin du SmtpClient
d'envoyer l'e-mail:
private void btnSend_Click(object sender, EventArgs e)
{
SmtpClient client = new SmtpClient("192.0.0.1", 25); //host, port
client.Send(msg);
}
En outre, la classe MailMessage
implémente IDisposable
, vous avez donc besoin du code pour disposer du message une fois que vous avez terminé avec elle.
J'ai créé une enveloppe qui comprend tout ce dont vous avez besoin pour envoyer des emails, y compris l'élimination:
/// <summary>
/// Wrapper class for the System.Net.Mail objects
/// </summary>
public class SmtpMailMessage : IDisposable
{
#region declarations
MailMessage Message;
SmtpClient SmtpMailClient;
#endregion
#region constructors
/// <summary>
/// Default constructor for the SmtpMailMessage class
/// </summary>
public SmtpMailMessage()
{
//initialize the mail message
Message = new MailMessage();
Message.Priority = MailPriority.Normal;
Message.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;
Message.From = new MailAddress("[email protected]");
//initialize the smtp client
SmtpMailClient = new SmtpClient();
SmtpMailClient.DeliveryMethod = SmtpDeliveryMethod.Network;
SmtpMailClient.Host = "192.168.0.1";
SmtpMailClient.Port = 25;
}
/// <summary>
/// Parameterized constructor for the SmtpMailMessage class. Allows for override of the default
/// SMTP host and port number
/// </summary>
/// <param name="HostIP">The IP address of the exchange server</param>
/// <param name="PortNumber">The port number for ingoing and outgoing SMTP messages</param>
public SmtpMailMessage(string HostIP, int PortNumber) : this()
{
//override the smtp host value
SmtpMailClient.Host = HostIP;
//override the smtp port value
SmtpMailClient.Port = PortNumber;
}
#endregion
#region subject/body
/// <summary>
/// The body content of the mail message
/// </summary>
public string Body
{
get
{
return Message.Body;
}
set
{
Message.Body = value;
}
}
/// <summary>
/// the subject of the mail message
/// </summary>
public string Subject
{
get
{
return Message.Subject;
}
set
{
Message.Subject = value;
}
}
#endregion
#region mail type
/// <summary>
/// Gets or sets a value that determines whether the mail message
/// should be formatted as HTML or text
/// </summary>
public bool IsHtmlMessage
{
get
{
return Message.IsBodyHtml;
}
set
{
Message.IsBodyHtml = value;
}
}
#endregion
#region sender
/// <summary>
/// Gets or sets the from address of this message
/// </summary>
public string From
{
get
{
return Message.From.Address;
}
set
{
Message.From = new MailAddress(value);
}
}
#endregion
#region recipients
/// <summary>
/// Gets the collection of recipients
/// </summary>
public MailAddressCollection To
{
get
{
return Message.To;
}
}
/// <summary>
/// Gets the collection of CC recipients
/// </summary>
public MailAddressCollection CC
{
get
{
return Message.CC;
}
}
/// <summary>
/// Gets the collection of Bcc recipients
/// </summary>
public MailAddressCollection Bcc
{
get
{
return Message.Bcc;
}
}
#endregion
#region delivery notification
/// <summary>
/// Gets or sets the delivery notification settings for this message
/// </summary>
public DeliveryNotificationOptions DeliveryNotifications
{
get
{
return Message.DeliveryNotificationOptions;
}
set
{
Message.DeliveryNotificationOptions = value;
}
}
#endregion
#region priority
/// <summary>
/// Gets or sets the Priority of this message
/// </summary>
public MailPriority PriorityLevel
{
get
{
return Message.Priority;
}
set
{
Message.Priority = value;
}
}
#endregion
#region send methods
/// <summary>
/// Sends the message anonymously (without credentials)
/// </summary>
public void Send()
{
SmtpMailClient.Send(Message);
}
/// <summary>
/// Sends the message with authorization from a network account
/// </summary>
/// <param name="Username">The Windows username of the authorizing user</param>
/// <param name="Password">The Windows password of the authorizing user</param>
/// <param name="Domain">The domain name of the network to which the authorizing user belongs</param>
public void Send(string Username, string Password, string Domain)
{
//attach a network credential to this message using the information passed into the method
SmtpMailClient.Credentials = new NetworkCredential(Username, Password, Domain);
//send the message
SmtpMailClient.Send(Message);
}
#endregion
#region IDisposable implementation
~SmtpMailMessage()
{
Dispose(false);
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
if (Message != null)
Message.Dispose();
Message = null;
SmtpMailClient = null;
}
}
#endregion
}
Mise en œuvre:
using (SmtpMailMessage mail = new SmtpMailMessage("192.168.0.1", 25))
{
//set the to address to the primary email
mail.To.Add("[email protected]");
//set the message type and subject and body
mail.IsHtmlMessage = true;
mail.Subject = "Foo";
mail.Body = "Hello world!";
//send the email
mail.Send();
}
Quel est le message d'erreur exact? – Vlad
Impossible de résoudre l'expéditeur du symbole. Lorsque je compile, j'obtiens: Invalid token '(' dans la classe, struct, ou déclaration de membre d'interface \t dans MainWindow.cs – s5s
Ok, et quelle ligne produit ce message d'erreur? – Vlad