我正在尝试使用计时器每分钟发送一封电子邮件。每封电子邮件的信息都取自表单上每一行组件的值。我可以在不使用计时器的情况下发送电子邮件，所以我知道电子邮件方法有效。但是当我尝试实现计时器时，电子邮件不会被发送。我阅读了有关计时器类的文档，我相信这应该可行。但我对它还不够熟悉，无法真正知道该怎么做。这是代码：
这是电子邮件方法：
//method to send email to outlook
public void sendEMailThroughOUTLOOK(string recipient,
string subject, string body)
{
try
{
// Create the Outlook application.
Outlook.Application oApp = new Outlook.Application();
// Create a new mail item.
Outlook.MailItem oMsg =
(Outlook.MailItem)oApp.CreateItem(Outlook.OlItemType.olMailItem);
// Set HTMLBody.
//add the body of the email
oMsg.Body = body;
oMsg.Subject = subject;
// Add a recipient.
Outlook.Recipients oRecips = (Outlook.Recipients)oMsg.Recipients;
// Change the recipient in the next line if necessary.
Outlook.Recipient oRecip = (Outlook.Recipient)oRecips.Add(recipient);
oRecip.Resolve();
// Send.
oMsg.Send();
// Clean up.
oRecip = null;
oRecips = null;
oMsg = null;
oApp = null;
}//end of try block
catch (Exception ex)
{
} //end of catch
} //end of Email Method
这是计时器事件：
private void OnTimedEvent(object source, ElapsedEventArgs e)
{
foreach (rowClass row in this.rows)
{
string recipientAddress = "roomcheckstest@gmail.com";
string subjectLine = "GPC " + (string)row.buildingComboBox.SelectedItem
+ " " + (string)row.roomComboBox.SelectedItem + "-Room Check";
string senderline = "Sender=ctsstaff.ithelpcentral@ttu.edu" + "\t";
string newlinespaces = Environment.NewLine + Environment.NewLine +
Environment.NewLine + Environment.NewLine + Environment.NewLine;
string legalLastName = "Legal Last Name=" +
(string)row.buildingComboBox.SelectedItem;
string legalFirstName = "Legal First Name=" +
(string)row.roomComboBox.SelectedItem;
string timeLine = "Time= 15m";
string requestType = "Initial Request Type=Onsite";
string classRoomMaintenace = "Classroom maintenance. " +
"Regular Classroom weekly check.";
string closingEmailSent = "Closing Email Sent=yes";
string currentlyClosed = "Currently Closed=yes";
string assignTo = "Assign To=ITHC CTS Staff";
string typeLine = "Type=Hardware";
string category = "Category=Internal Component";
string subCategory = "Subcategory=Performance";
string agentType = "Type (Agent)=Hardware";
string agentCategory = "Type (Agent)=Hardware";
string subCategoryAgent = "Subcategory (Agent)=Performance";
string labelLine = "Label=Service Request";
string status = "Status=Closed";
string finalbody = senderline + newlinespaces + legalLastName
+ newlinespaces + legalFirstName + newlinespaces + timeLine
+ newlinespaces + requestType + newlinespaces + classRoomMaintenace
+ newlinespaces + closingEmailSent + newlinespaces
+ currentlyClosed + newlinespaces + assignTo + newlinespaces
+ typeLine + newlinespaces + category + newlinespaces
+ subCategory + newlinespaces + agentType + newlinespaces
+ agentCategory + newlinespaces + subCategoryAgent
+ newlinespaces + labelLine + newlinespaces + status;
sendEMailThroughOUTLOOK(recipientAddress, subjectLine, finalbody);
MessageBox.Show("email");
//Thread.Sleep(60000);
//sendEMailThroughOUTLOOK(recipientAddress, subjectLine, finalbody);
}
}
这是在表单上的发送电子邮件按钮内创建计时器的地方，理论上它应该调用电子邮件方法：
private void submitButton_Click(object sender, EventArgs e)
{
if (rows[0].buildingComboBox.SelectedIndex > -1)
{
System.Timers.Timer time = new System.Timers.Timer();
time.Interval = 300000;
time.Enabled = true;
time.Elapsed += new ElapsedEventHandler(OnTimedEvent);
MessageBox.Show("Issues Sent");
}
}
我为表单上的每一行组件发送一封电子邮件（用户根据需要添加行）电子邮件是通过 Outlook 发送的（必须使用 Exchange 服务器通过 Outlook 发送）我需要延迟它，因为服务器不会接受它们一次全部。我对定时器类的理解一定是有缺陷的。我无法弄清楚为什么这不起作用。