Populating ASP.Net gridview according to selected date

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Hi
I have this event that suppose to load gridview according to the selected date.
When I commented the code to populate the gridview, the messagebox appear with the correct values. This means al the necessary values to populate the gridview are available.

when i uncomment the code to populate the grid,the grid dont work...what might be the problem. Check the code below...

C#

protected void ddlEmployeeID_SelectedIndexChanged(object sender, EventArgs e)
      {
          getEmployeeId();
          try
          {
              string date = DateTime.Now.ToShortDateString();
              //string selectedDate = DatePicker.SelectedDate.ToShortDateString();
              if (DatePicker.SelectedDate.ToShortDateString() == date || DatePicker.SelectedDate.ToShortDateString() == "1/1/0001")
              {
              if (Page.IsPostBack)
              {
                  DataTable dt = new DataTable();
                  systemBusinessLayer = new BusinessLayer();
                  dt = new DataTable();
                  dt = systemBusinessLayer.getAllEmployeeAppointmentsByDate(date, Session["idnumber"].ToString());
                  grdShowSelectedappointment.DataSource = dt;
                  grdShowSelectedappointment.DataBind();
              //MessageBox.Show(date + " " + Session["idnumber"].ToString() + " " + "Am using default dates");//date + " " + Session["idnumber"].ToString() + " " + "Am using default dates"
              }
              }
              else
              {
                  //DataTable dt = new DataTable();
                  //systemBusinessLayer = new BusinessLayer();
                  //dt = new DataTable();
                  //dt = systemBusinessLayer.getAllEmployeeAppointmentsByDate(DatePicker.SelectedDate.ToShortDateString(), Session["idnumber"].ToString());
                  //grdShowSelectedappointment.DataSource = dt;
                  //grdShowSelectedappointment.DataBind();
                  MessageBox.Show("Am using selected date");
              }
              // MessageBox.Show(var);
          }
          catch (Exception)
          {
          }

      }

Posted 20-Jul-11 22:11pm

Anele Ngqandu

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Comments

walterhevedeich 21-Jul-11 4:28am

By saying the grid wont work, do you mean it throwed errors? Or there was no data?

Anele Ngqandu 21-Jul-11 4:30am

It doesnt show anything,no error, nothing

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Herman<T>.Instance · Answer 1 · 2011-07-20T23:09:00

IF I look at your code, I suspect your code should be:

protected void ddlEmployeeID_SelectedIndexChanged(object sender, EventArgs e)
{
  getEmployeeId();
  try
  {
    string date = DateTime.Now.ToShortDateString();
    string selectedDate = DatePicker.SelectedDate.ToShortDateString();
    systemBusinessLayer = new BusinessLayer();
    DataTable dt = new DataTable();
    if (Page.IsPostBack && DatePicker.SelectedDate == DateTime.MinValue)
    {
        dt = systemBusinessLayer.getAllEmployeeAppointmentsByDate(date, Session["idnumber"].ToString());
    }
    else
    {
        dt = systemBusinessLayer.getAllEmployeeAppointmentsByDate(DatePicker.SelectedDate.ToShortDateString(), Session["idnumber"].ToString());
    }
    grdShowSelectedappointment.DataSource = dt;
    grdShowSelectedappointment.DataBind();
  }
  catch (Exception error)
  {
        String exception == error.ToString();  // for debug purposes
  }

}