It is now possible to register owned stocks for keeping track on them

StockDal/StockDal.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

StockDal/StockMarketRepository.cs

@@ -185,7 +185,7 @@ namespace StockDal
 
         public void Clean()
         {
-            driver.Quit();
+            driver?.Quit();
         }
 
     }

StockDal/StockMemberRepository.cs

@@ -16,9 +16,35 @@ namespace StockDal
             throw new NotImplementedException();
         }
 
-        public bool Insert(StockMember stockMember)
+        public void InsertMany(List<StockMember> stockMembers)
         {
-            throw new NotImplementedException();
+            using IDbConnection db = new SqlConnection(StockDBConnection.ConnectionString);
+            if (db.State == ConnectionState.Closed)
+                db.Open();
+            db.Execute(
+                @"INSERT INTO [dbo].[StockMember]
+                   (StockId
+                   ,StockExtId
+                   ,BuyValue
+                   ,BuyDate
+                   ,ActValue
+                   ,ActDate
+                   ,SoldValue
+                   ,SoldDate
+                   ,Comment
+                   ,PostAmount)
+                 VALUES
+                   (@StockId
+                   ,@StockExtId
+                   ,@BuyValue
+                   ,@BuyDate
+                   ,@ActValue
+                   ,@ActDate
+                   ,@SoldValue
+                   ,@SoldDate
+                   ,@Comment
+                   ,@PostAmount)
+                    ", stockMembers);
         }
 
         public bool Update(StockMember stockMember)
@@ -28,7 +54,7 @@ namespace StockDal
 
         IEnumerable<StockMember> IStockMemberRepository.GetStocks()
         {
-            using System.Data.IDbConnection db = new SqlConnection(StockDBConnection.ConnectionString);
+            using IDbConnection db = new SqlConnection(StockDBConnection.ConnectionString);
             if (db.State == ConnectionState.Closed)
                 db.Open();
             return db.Query<StockMember>(@"SELECT Id