我们有一个应用程序，该应用将电子邮件发送给从ComboBox中选择的人(请求者(。它只发送一封电子邮件。新要求是，我们希望向多个人发送多个电子邮件。项目所有者不想用listbox替换当前的ComboBox。这将需要其他数据库工作。因此，我建议解决方案的建议是添加一个与ComboBox相同的信息(数据库中的名称对象(填充的列表框。仅当用户想要向额外的人发送电子邮件时，才会使用列表框。我如何修改此按钮的代码，以便将电子邮件发送给ComboBox中选择的请求者(当前正在执行(，并将电子邮件发送给从列表框中选择的任何请求者？在发送电子邮件之前，我想检查以确保在列表框中也未选择ComboBox的所选请求者。我不希望请求者收到两封电子邮件。
这是列表框，它的请求者与ComboBox具有相同的数据。
public async void PopulateAdditionalStaffEmailListBox()
{
List<GetRequestorInfoModel> requestors = new List<GetRequestorInfoModel>();
try
{
requestors = await FTACaseReset.Controllers.RequestorInfoController.GetAllRequestorInfoes();
requestors = requestors.OrderBy(x => x.DisplayName).ToList(); //Has 15 items
//Populate AdditionalStaffEmailListBox
for (int i = 0; i < requestors.Count; i++)
{
ListBoxItem requestor = new ListBoxItem();
requestor.Text = requestors[i].DisplayName;
requestor.Value = requestors[i].RequestorInfoID;
AdditionalStaffEmailListBox.Items.Add(requestor.Text).ToString();
}
}
catch (Exception ex)
{
string errorMsg = string.Format("An error has occured in {0}. nException:n{1}", "AdditionalStaffEmailListBox()", ex.Message);
MessageBox.Show(errorMsg, "Application Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
这是当前正在将电子邮件发送给从ComboBox
选择的按钮的代码private async void SendEmail(int selectedBatch)
{
string message = "The following records have been prepped for processing. Valid cases will be processed.{0}{1}{2}";
string requestorName = string.Empty;
string requestorEmail = string.Empty;
List<GetCandidateCaseModel> masterCandidateCasesListToDisplay = new List<GetCandidateCaseModel>();
try
{
masterCandidateCasesListToDisplay = await Controllers.CandidateCaseController.GetAllCandidates();
masterCandidateCasesListToDisplay = masterCandidateCasesListToDisplay.Where(x => x.BatchNumber == selectedBatch && x.RejectionReason != null).ToList();
if (masterCandidateCasesListToDisplay.Count > 0)
{
requestorName = masterCandidateCasesListToDisplay[0].RequestorInfo.DisplayName;
requestorEmail = masterCandidateCasesListToDisplay[0].RequestorInfo.Email;
using (MailMessage mailMessage = new MailMessage())
{
mailMessage.From = new MailAddress("NoReply_FTA@courts.state.mn.us");
//Uncomment after testing June 2019
MailAddress to = new MailAddress(requestorEmail);
mailMessage.To.Add(to);
string ccEmailAddress = Authentication.GetADEmail();
if (ccEmailAddress.Length > 0)
{
MailAddress ccto = new MailAddress(ccEmailAddress);
mailMessage.CC.Add(ccto);
}
mailMessage.Subject = "FTA Case Reset Notice";
mailMessage.Body = message;
mailMessage.IsBodyHtml = true;
SmtpClient smtpClient = new SmtpClient();
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
smtpClient.Send(mailMessage);
MessageBox.Show("An email has been sent to " + requestorName, "Email", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
else
MessageBox.Show("No Requestor was found. Unable to send an email.", "Email", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
catch (Exception ex)
{
string errorMsg = string.Format("An error has occured in {0}. nException:n{1}", "SubmitButton_Click()", ex.Message);
MessageBox.Show(errorMsg, "Application Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
如果您不显示自定义类，请理解您的代码。以下代码应起作用，但请注意，比较显示名称不是最好的主意，因此，如果您可以通过某些ID进行比较，请做到这一点。
private async void SendEmail(int selectedBatch)
{
string message = "The following records have been prepped for processing. Valid cases will be processed.{0}{1}{2}";
string requestorName = string.Empty;
string requestorEmail = string.Empty;
List<GetCandidateCaseModel> masterCandidateCasesListToDisplay = new List<GetCandidateCaseModel>();
try
{
masterCandidateCasesListToDisplay = await Controllers.CandidateCaseController.GetAllCandidates();
var selectedCandidate = masterCandidateCasesListToDisplay.Where(x => x.BatchNumber == selectedBatch && x.RejectionReason != null).ToList();
if (masterCandidateCasesListToDisplay.Count > 0)
{
SmtpClient smtpClient = new SmtpClient();
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
string requestorName0 = selectedCandidate[0].RequestorInfo.DisplayName;
string requestorEmail0 = selectedCandidate[0].RequestorInfo.Email;
MailMessage mailMessage = new MailMessage();
MailAddress to = new MailAddress(requestorEmail);
mailMessage.From = new MailAddress("NoReply_FTA@courts.state.mn.us");
mailMessage.To.Add(to);
mailMessage.Subject = "FTA Case Reset Notice";
mailMessage.Body = message;
mailMessage.IsBodyHtml = true;
string ccEmailAddress = Authentication.GetADEmail();
if (ccEmailAddress.Length > 0)
{
MailAddress ccto = new MailAddress(ccEmailAddress);
mailMessage.CC.Add(ccto);
}
foreach (ListViewItme item in AdditionalStaffEmailListBox.SelectedItems)
{
candidate = masterCandidateCasesListToDisplay.First(x => x.RequestorInfo.DisplayName == item.Value);
requestorName = candidate.RequestorInfo.DisplayName;
requestorEmail = candidate.RequestorInfo.Email;
if (requestorEmail0 == requestorEmail)
{
continue;
}
to = new MailAddress(requestorEmail);
mailMessage.To.Add(to);
ccEmailAddress = Authentication.GetADEmail();
if (ccEmailAddress.Length > 0)
{
MailAddress ccto = new MailAddress(ccEmailAddress);
mailMessage.CC.Add(ccto);
}
MessageBox.Show("An email has been sent to " + requestorName, "Email", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
smtpClient.Send(mailMessage);
}
else
{
MessageBox.Show("No Requestor was found. Unable to send an email.", "Email", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
catch (Exception ex)
{
string errorMsg = string.Format("An error has occured in {0}. nException:n{1}", "SubmitButton_Click()", ex.Message);
MessageBox.Show(errorMsg, "Application Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}