我正在尝试使用asp.net C＃每月自动填充报告

Question

My task is that every month, the quantity column in the medicine table will be updated to the current month's column in the report table. I would like to do this without using task scheduler. I researched online about threading and timer. However, I am unsure if it will work as threading will only auto update the same column every month. As you can see, I need to update different columns every month.

Here are my codes:

DateTime today = DateTime.Today;
DateTime firstDay = new DateTime(today.Year, today.Month, 1);
if (today == firstDay)
{
    while (true)
    {
        string sql1 = "SELECT quantity FROM medicine";
        DataSet ds = DBMgr.GetDataSet(sql1);
        int quantity = int.Parse(ds.Tables[0].Rows[0]["quantity"].ToString());
        string month = DateTime.Now.ToString("MMMM");

    if (month.Equals("January"))
    {
        string sql = "UPDATE report SET Jan = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("February"))
    {
        string sql = "UPDATE report SET Feb = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("March"))
    {
        string sql = "UPDATE report SET Mar = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("April"))
    {
        string sql = "UPDATE report SET Apr = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);

    }
    if (month.Equals("May"))
    {
        string sql = "UPDATE report SET May = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("June"))
    {
        string sql = "UPDATE report SET June = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("July"))
    {
        string sql = "UPDATE report SET July = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("August"))
    {
        string sql = "UPDATE report SET Aug = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("September"))
    {
        string sql = "UPDATE report SET Sep = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("October"))
    {
        string sql = "UPDATE report SET Oct = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("November"))
    {
        string sql = "UPDATE report SET Nov = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    if (month.Equals("December"))
    {
        string sql = "UPDATE report SET Dec = '{0}'";
        DBMgr.ExecuteSQL(sql, quantity);
    }
    else
    {
        LblMsg.Text = "An Error Occurred";
    }
}

the current month's column was not updated at all. Thanks in advance!

Answer 1

Not sure that timer will work for your case. Most probably it is not called, because the current pool, that has a timer was stoped and there are no other requests to 'wake up' the pool and restart timer. Read about recycling app pools and default settings

To be sure that your code is working, check it separatelly with another test