Add project files.

ConstructorApp.BusinessLayer/Concrete/CompanyInfoManager.cs

@@ -0,0 +1,41 @@
+using ConstructorApp.BusinessLayer.Abstract;
+using ConstructorApp.DataAccessLayer.Abstract;
+using ConstructorApp.EntityLayer.Entities;
+
+namespace ConstructorApp.BusinessLayer.Concrete
+{
+    public class CompanyInfoManager : ICompanyInfoService
+    {
+        private readonly ICompanyInfoDal _companyInfoDal;
+
+        public CompanyInfoManager(ICompanyInfoDal companyInfoDal)
+        {
+            _companyInfoDal = companyInfoDal;
+        }
+
+        public void TAdd(CompanyInfo entity)
+        {
+           _companyInfoDal.Add(entity);
+        }
+
+        public void TDelete(CompanyInfo entity)
+        {
+           _companyInfoDal.Delete(entity);
+        }
+
+        public CompanyInfo TGetByID(int id)
+        {
+            return _companyInfoDal.GetByID(id);
+        }
+
+        public List<CompanyInfo> TGetListAll()
+        {
+            return _companyInfoDal.GetListAll();
+        }
+
+        public void TUpdate(CompanyInfo entity)
+        {
+            _companyInfoDal.Update(entity);
+        }
+    }
+}