private bool DataIsValid()
{
if (string.IsNullOrEmpty(txtStudNum.Text.Trim()))
{
MessageDialog.ShowValidationError(txtStudNum, "Student Number must NOT be blank");
return(false);
}
int studnum;
if (!int.TryParse(txtStudNum.Text, out studnum))
{
txtStudNum.Focus();
MessageDialog.ShowValidationError(txtStudNum, "Invalid Student Number");
return(false);
}
if (string.IsNullOrWhiteSpace(txtSection.Text))
{
MessageDialog.ShowValidationError(txtSection, "Section is Required. Specify Section");
return(false);
}
var reader = new StudentDataReader();
if (reader.HasExistingStudentNumber(Convert.ToInt32(txtStudNum.Text), ItemData.Id))
{
MessageDialog.ShowValidationError(txtStudNum, "Student Number already exists!");
return(false);
}
return(true);
}
private bool ExistingPersonId(int personId)
{
var reader = new StudentDataReader();
return(reader.HasExistingPersonId(personId));
}
