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Old December 20th, 2005, 08:01 AM
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Default problem with foreach loop in Checkboxes datagrid

Hi All,

Below is the full code of a method which calls a saving stored procedure.Before doing this a foreach method with a nested loop for each column searches the datagrid for checked and uncheked boxes ( which it does successfully). The problem is basically it always hit's the catch statement i have thrown. It exits the foreach statement then goes upto "calendar.saveCalendar ....." At this point it then goes to the finally statement but it returns to the foreach statement. Any ideas why this might be happening?

Cheers
mbge9pjb

public void btnSave_Click(object sender, System.EventArgs e)

{

try
{
   foreach(DataGridItem dgi in EditCalendar.Items)
    {

    for ( int i =0; i< checkedMonthOfYear.Length; i++)
    {
    CheckBox chkEfaPeak = (CheckBox) dgi.FindControl(checkedMonthOfYear[i]);
    bool newState = chkEfaPeak.Checked;
    DataSet years = getDataSetFromSessionYears();
    years.Tables[0].Rows[dgi.DataSetIndex][months[i]]= (newState ? "Y": "N");
    }

   }
Int32 idCalendar = Int32.Parse.lstCalendars.Items[ lstCalendars.SelectedIndex].Value);
Int32 idCalendarVersion = Int32.Parse( hiddenCalendarVersionId.Value);
Int16 retcode;
DataSet changes = getDataSetFromSessionYears().GetChanges( DataRowState.Modified);
Calendar calendar = new Calendar( Configuration.getConnStr());
calendar.saveCalendar idCalendar, idCalendarVersion, SecurityManager.getUserID(),changes, out retcode);
}

catch (NullReferenceException )
{
 // makes sure the method catches datagrid referencing null objects
 Response.Redirect("../configuration/Peak_Scaling.aspx");
}

  finally
  {
  setDataSetToSessionYears(null);
  }
}


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Old December 20th, 2005, 08:05 AM
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Default

Hi mbge9pjb,

You may need to pass true as an additional parameter to Response.Redirect() to tell it stop executing the current page.

Alternatively, you can add the keyword throw in your catch statement to pass up the error....

Cheers,

Imar
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Old December 20th, 2005, 10:03 AM
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I think ultimately the best approach will either be a) to find out why exactly the foreach statement is being called again, or b) to introduce a statement in the finally clause to exit the method ( safe return perhaps??)

Thanks
mbge9pjb

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