I tried the following, but poorly it is not working. Do you have an idea?
dT1.AsEnumerable().Where(Function(s) Not fiscalYear +" “+ “1Q”,fiscalYear +” “+ “2Q”,fiscalYear +” “+ “3Q”,fiscalYear +” "+ “4Q” .Contains(s(“Fiscal Year”).ToString)).CopyToDataTable
dT1.AsEnumerable().Where(Function(s) Not (fiscalYear +" “+ “1Q”,fiscalYear +” “+ “2Q”,fiscalYear +” “+ “3Q”,fiscalYear +” "+ “4Q”) .Contains(s(“Fiscal Year”).ToString)).CopyToDataTable