在C＃表单中，即使没有编写代码，也会填充表单 [英] in C# forms ,Form is populated even no code is written
问题描述
您好
我正在编写程序来创建系统托盘以弹出消息。
I am writing program to create system tray to popup messages.
在程序中我检查它是否有效用户然后将显示通知
in the program i check if it is valid user then notification will be displayed
否
不会显示任何通知消息。
no notification message will be displayed.
但是如果用户（用户代码）没有会议，然后空白通知消息弹出即将到来。
But if the user(user code) has no meeting then blank notification message popup is coming.
我想隐藏通知消息。
请帮助我。
我已编写代码
using (SqlConnection CNN = new SqlConnection(AppManager.GetConnectionString()))
{
CNN.Open();
//getting all records from Meeting
using (SqlCommand scmd = new SqlCommand())
{
using (DataTable dtMeeting = new DataTable())
{
scmd.CommandText = "SELECT MeetingNumber from Meeting";
scmd.Connection = CNN;
SqlDataAdapter sdaMeeting = new SqlDataAdapter(scmd);
sdaMeeting.Fill(dtMeeting);
foreach (DataRow drMeeting in dtMeeting.Rows)
{
using (DataTable dtAttendies = new DataTable())
{
scmd.CommandText = "SELECT MEETING.MeetingNumber, MEETING.MeetingType," +
" MEETINGTYPEMASTER.MeetingTypeName, MEETING.MeetingName,MEETING.Location," +
" MEETING.StartTime, MEETING.EndTime, MEETINGATTENDEES.AttendeeType," +
" MEETING.Prepared, MEETING.PreparedBy, MEETING.PreparedDateTime," +
" MEETING.BranchCode" +
" FROM MEETING, MEETINGTYPEMASTER, EMPLOYEEMASTER ,MEETINGATTENDEES," +
" DESIGNATIONMASTER, DEPARTMENTMASTER,USERMASTER" +
" Where MEETING.MeetingType=MEETINGTYPEMASTER.MeetingTypeCode" +
" And EMPLOYEEMASTER.EmployeeCode=MEETINGATTENDEES.EmployeeCode" +
" And EMPLOYEEMASTER.DepartmentCode=DEPARTMENTMASTER.DepartmentCode" +
" And EMPLOYEEMASTER.DesignationCode=DESIGNATIONMASTER.DesignationCode" +
" And MEETING.BranchCode=xxx" +
" And MEETING.MeetingNumber=MEETINGATTENDEES.MeetingNumber" +
" And MEETING.MeetingNumber= " + drMeeting["MeetingNumber"] + "" + //This meeting number coming from outer loop
" And EMPLOYEEMASTER.EmployeeCode=USERMASTER.EmployeeCode" +
" And USERMASTER.UserCode=2";//User code
scmd.Connection = CNN;
SqlDataAdapter sdaAttendies = new SqlDataAdapter(scmd);
sdaAttendies.Fill(dtAttendies);
if (dtAttendies.Rows.Count != 0)
{
foreach (DataRow drAttendies in dtAttendies.Rows)
{
lblMeetingType.Text = dtAttendies.Rows[0]["MeetingTypeName"].ToString();
lblMeetingName.Text = dtAttendies.Rows[0]["MeetingName"].ToString();
}
}
else
{ // if the user code has no meeting still the blank popup is coming
//Here no code is given but still the notification popup is coming
}
}
}
}
}
}
这个。关（）;
}
catch（exception ex）
{
Console.WriteLine（ex.ToString（））;
}
}
private void Form1_Resize（object sender，EventArgs e）
{
if（WindowState == FormWindowState.Minimized）
{
ShowInTaskbar = false;
notifyIcon1.Visible = true;
notifyIcon1.ShowBalloonTip（1000）;
}
}
} } } this.Close(); } catch (Exception ex) { Console.WriteLine(ex.ToString()); } } private void Form1_Resize(object sender, EventArgs e) { if (WindowState == FormWindowState.Minimized) { ShowInTaskbar = false; notifyIcon1.Visible = true; notifyIcon1.ShowBalloonTip(1000); } }
private void notifyIcon1_MouseDoubleClick（object sender，MouseEventArgs e）
      {
            ShowInTaskbar = true;
          notifyIcon1.Visible = false;
          WindowState = FormWindowState.Normal;           
        }
private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
{
ShowInTaskbar = true;
notifyIcon1.Visible = false;
WindowState = FormWindowState.Normal;
}
静态课程计划
  {
              [STAThread]
        static void Main（）
      {            
                Application.EnableVisualStyles（）;
                Application.SetCompatibleTextRenderingDefault（假）;
                Application.Run（new Form1（））;
          }
          }
static class Program
{
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
我无法纠正错误。
I am unable to rectify the error.
请帮我不要显示通知消息
Please help me not to display notification message
谢谢
Rama
推荐答案
你好chandran.nr123，
Hi chandran.nr123,
我做看不到任何函数notifyIcon1，你正在填充数据。为什么不放这样的东西：
I do not see any function notifyIcon1 that you are populating with the data. Why not put something like this:
else
{ // if the user code has no meeting still the blank popup is coming
//Here no code is given but still the notification popup is coming
notifyIcon1.Visible = false;
}
或，设置 if条件以检查数据表是否包含任何数据。
or, put an if condition to check whether you datatable contains any data or not.
这篇关于在C＃表单中，即使没有编写代码，也会填充表单的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
