How can we handle MSSQL raiseerror in VB.net code behind using sqlcommand?

Question

I have written one store procedure which raise error on same specific condition. when i call this store procedure using vb.net code using sqlcommand I m not able to catch RAISEERROR

Store Procedure

Create sp_UPDATE
as 
begin


    IF @QTY > @ReqAlloQty
    BEGIN
         RAISERROR('Product Quantity should not be more than Required qty.',16,1)        
         goto EXITWITHERROR  
    END             

end

VB.NET

 Try
    m_commDBcommand.ExecuteNonQuery()
 Catch ex As Exception
 Finally
 End Try

exception is not raised when store procedure condition is matched.

Any help will be appreciated

Answer 1

Add a return statement after raiserror:

RAISERROR('Product Quantity should not be more than Required qty.',16,1);
RETURN;