/*
* Pre:
* Post: If the entered data is valid, the students of the From teacher are associated with the To teacher
*/
protected void btnSubmit_Click(object sender, EventArgs e)
{
bool success = true;
if (dataIsValid())
{
int fromTeacherId = Convert.ToInt32(ddlFrom.SelectedValue);
int toTeacherId = Convert.ToInt32(ddlTo.SelectedValue);
//do student transfer
success = DbInterfaceStudent.TransferStudents(fromTeacherId, toTeacherId);
//display message depending on whether or not the operation was successful
if (success)
{
showSuccessMessage("The students were successfully transferred.");
clearPage();
}
else
{
showErrorMessage("Error: An error occurred while transferring the students.");
}
}
}