how to add a class library to my project? Help

Question

Hi all I have been trying to learn on my own how to add a class library to a project but without avail. Basically I am following the guide from MSDN https://msdn.microsoft.com/en-us/library/cc668164(d=printer).aspx From the tutorial I am supposed to be able to click on the add reference and select the class library and add in. But when I click on the class library it opens up further and I am stuck on which one to add. I tried the properties files but it gives me error. Can someone show me an example how to do it ? Also I wonder if it is possible to create a project and create a class library from there for the Object layer without creating 2 projects like what the MSDN did ? Tks.

Amit Gupta · Answer

Hi Check the below link http://www.c-sharpcorner.com/uploadfile/61b832/creating-class-library-in-visual-c-sharp/ Hipe it helps

Tangara G · Answer

Hi Amit I have managed to find out the solution. What happened is that one got to browse the dll located in the debug folder. But before dll could be found you got to build the project before VS can create it for you. Now my problem is that I do not know how to access my model class in this dll. I have successfully added the reference. So in my BusinessLogic Layer I have added a SupplierLogic which I need to call the model inside the dll. using System; using System.Collections.Generic; using System.Linq; using System.Web; using LogicUniOjbLib; namespace UniLogicTest.BusinessLayer { public class SupplierBL { testEntitiesdb= new testEntities(); SupplierBOsupplierbO= new SupplierBO(); //SupplierBOsupplierBO; suppliersupplierDA; public List GetAllSuppliers() { List lstSuppliers=db.suppliers.ToList(); List result= new List (); foreach(suppliersinlstSuppliers) { supplierBO= new SupplierBO(); supplierBO.SupplierId=s.supplierId; supplierBO.SupplierCode=s.supplierCode; supplierBO.SupplierName=s.supplierName; supplierBO.ContactName=s.contactName; supplierBO.Phone=Convert.ToInt32(s.phone); supplierBO.Fax=Convert.ToInt32(s.fax); supplierBO.Address=s.address; result.Add(supplierBO); } return result; } The error said that it is inaccessible cos it is protected. How can I access the model class in my dll and make use of it in my Business Logic layer which is SupplierLogic ?