public IEnumerable <Assessment> GetAllAassessments(Func <Assessment, bool> pFunc = null)
{
try
{
if (pFunc == null)
{
return(dal.GetAllAassessments());
}
else
{
return((from asses in dal.GetAllAassessments()
where pFunc(asses)
select asses).ToList());
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return(null);
}
}