Asp.Net中按钮单击事件中的电子邮件

我发送邮件成功，但我希望在电子邮件中这样 文件名：abc 状态=批准

我在这张桌子上有一个下拉列表

现在在这里我想当管理员点击提交按钮，然后docname（像计划方法）和下拉列表值管理员选择（像批准/重新jct/挂起），例如，他选择拒绝，然后当用户收到邮件，他将能够看到这样的

docname：计划方法 状态：拒绝

这里是代码输入按钮

 protected void Button1_Click(object sender, EventArgs e)
    {

            string connStr = 
             ConfigurationManager.ConnectionStrings["mydms"].ConnectionString;
          SqlConnection mySQLconnection = new SqlConnection(connStr);
          string empId = string.Empty;
          DataTable dt = new DataTable();

          if (mySQLconnection.State == ConnectionState.Closed)
          {
              mySQLconnection.Open();

              for (int i = 0; i < Repeater2.Items.Count; i++)
              {
                  DropDownList DropDownListcontrol = 
             ((DropDownList)Repeater2.Items[i].FindControl("DropDownList4"));

                  Label DocId = ((Label)Repeater2.Items[i].FindControl("DocId"));

                  SqlCommand cmd = new SqlCommand("approveddd", mySQLconnection);
                  cmd.CommandType = CommandType.StoredProcedure;


                  cmd.Parameters.Add("@DocID", SqlDbType.Int).Value = 
                 Convert.ToInt32((DocId.Text));

                  cmd.Parameters.Add("@ApproveID", SqlDbType.Int).Value = 
                Convert.ToInt32(DropDownListcontrol.SelectedValue);
                  cmd.Parameters.Add("@ApproveBy", SqlDbType.VarChar, 50).Value = 
         (Session["Login2"]);




                  string DocName = 
          ((Label)Repeater2.Items[i].FindControl("DocName")).Text;
                  string emailId = 
               ((Label)Repeater2.Items[i].FindControl("YourEamil")).Text;
                  DropDownList dropdownvalue = 
               ((DropDownList)Repeater2.Items[i].FindControl("DropDownList4"));

                  string docname = String.Empty;
                  string emailID = String.Empty;
                  string dropdownvalues = String.Empty;

                  if (DocName.ToString() != "")
                  {
                      docname = DocName.ToString();
                  }
                  else
                  {
                      docname = "Unavailable";
                  }
                     if (emailId.ToString() != "")
                  {
                      emailID = emailId.ToString();
                  }
                  else
                  {
                      emailID = "Unavailable";
                  }

                  if (dropdownvalue.SelectedItem.ToString() != "")
                  {
                      dropdownvalues = dropdownvalue.SelectedItem.ToString();
                  }
                  else
                  {
                      dropdownvalues = "Unavailable";
                  }


                  SendEmailUsingGmail(DocName.ToString(), emailId.ToString(), 
           dropdownvalue.ToString());


                  cmd.ExecuteNonQuery();



              }

          }
          else
          {
              Supvisor.Text = "Error";
          }
          if (mySQLconnection.State == ConnectionState.Open)
          {
              mySQLconnection.Close();
          }

                }
    private void SendEmailUsingGmail(string DocName, string emailId, string
     dropdownvalue)
    {
        try
        {
            SmtpClient smtp = new SmtpClient();
            smtp.Credentials = new NetworkCredential("johkett@gmail.com", "123123120");
            smtp.Port = 587;
            smtp.Host = "smtp.gmail.com";
            smtp.EnableSsl = true;
            MailMessage message = new MailMessage();
            message.From = new MailAddress("johkett@gmail.com");
            message.To.Add(emailId);

            message.Subject = "DropDownList4 " + dropdownvalue;
            message.Body = "DocName=" + DocName + " DropDownList4=" + dropdownvalue;
            //message.Subject = "Write your email subject here";
            //message.Body = "write the content of the email here";
            smtp.Send(message);
        }
        catch (Exception ex)
        {
            Response.Write("Error occured: " + ex.Message.ToString());
        }
    }

受保护的无效按钮1\u单击（对象发送者，事件参数e）
{
字符串connStr=
ConfigurationManager.ConnectionString[“mydms”]。ConnectionString；
SqlConnection mySQLconnection=newsqlconnection（connStr）；
string empId=string.Empty；
DataTable dt=新的DataTable（）；
if（mySQLconnection.State==ConnectionState.Closed）
{
mySQLconnection.Open（）；
对于（int i=0；i

像这样，我想在电子邮件中看到

---

我是如何做到这一点的，而不是传递

dropdownvalues

，而是将控件作为字符串（

dropdownvalues.ToString（）

）传递

您应该更改此行：

SendEmailUsingGmail(DocName.ToString(), emailId.ToString(), dropdownvalue.ToString());

为此：

SendEmailUsingGmail(DocName, emailId, dropdownvalues);

另外，我建议从代码中删除不必要的

ToString（）

`按钮1\u Click'应如下所示：

protected void Button1_Click(object sender, EventArgs e)
{
    string connStr = ConfigurationManager.ConnectionStrings["mydms"].ConnectionString;
    SqlConnection mySQLconnection = new SqlConnection(connStr);
    string empId = string.Empty;
    DataTable dt = new DataTable();

    if (mySQLconnection.State == ConnectionState.Closed)
    {
        mySQLconnection.Open();

        for (int i = 0; i < Repeater2.Items.Count; i++)
        {
            DropDownList DropDownListcontrol = ((DropDownList)Repeater2.Items[i].FindControl("DropDownList4"));

            Label DocId = ((Label)Repeater2.Items[i].FindControl("DocId"));
            SqlCommand cmd = new SqlCommand("approveddd", mySQLconnection);
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.Add("@DocID", SqlDbType.Int).Value = Convert.ToInt32((DocId.Text));
            cmd.Parameters.Add("@ApproveID", SqlDbType.Int).Value = Convert.ToInt32(DropDownListcontrol.SelectedValue);
            cmd.Parameters.Add("@ApproveBy", SqlDbType.VarChar, 50).Value = (Session["Login2"]);

            string DocName = ((Label)Repeater2.Items[i].FindControl("DocName")).Text;
            string emailId = ((Label)Repeater2.Items[i].FindControl("YourEamil")).Text;
            DropDownList dropdownvalue = ((DropDownList)Repeater2.Items[i].FindControl("DropDownList4"));

            string docname = String.Empty;
            string emailID = String.Empty;
            string dropdownvalues = String.Empty;

            docname = !String.IsNullOrEmpty(DocName) ? DocName : "Unavailable";
            emailId = !String.IsNullOrEmpty(emailID) ? emailID : "Unavailable";
            dropdownvalues = !String.IsNullOrEmpty(dropdownvalue.SelectedValue) ? dropdownvalue.SelectedValue : "Unavailable";


            SendEmailUsingGmail(docname, emailId, dropdownvalues);
            cmd.ExecuteNonQuery();

        }

    }
    else
    {
        Supvisor.Text = "Error";
    }
    if (mySQLconnection.State == ConnectionState.Open)
    {
        mySQLconnection.Close();
    }

}

受保护的无效按钮1\u单击（对象发送者，事件参数e）
{
字符串connStr=ConfigurationManager.ConnectionString[“mydms”].ConnectionString；
SqlConnection mySQLconnection=newsqlconnection（connStr）；
string empId=string.Empty；
DataTable dt=新的DataTable（）；
if（mySQLconnection.State==ConnectionState.Closed）
{
mySQLconnection.Open（）；
对于（int i=0；i