Added Viewer and

change to App Setting File from Constants

Viewer/Repositories/SQLDbConnectionFactory.cs

@@ -0,0 +1,29 @@
+using OI.Metrology.Shared.Repositories;
+using OI.Metrology.Viewer.Models;
+using System;
+using System.Data.Common;
+using System.Data.SqlClient;
+
+namespace OI.Metrology.Viewer.Repositories;
+
+public class SQLDbConnectionFactory : IDbConnectionFactory
+{
+    private readonly AppSettings _AppSettings;
+
+    public SQLDbConnectionFactory(AppSettings appSettings) => _AppSettings = appSettings;
+
+    public DbConnection GetDbConnection()
+    {
+        DbProviderFactories.RegisterFactory(
+            typeof(SqlConnection).Namespace,
+            SqlClientFactory.Instance);
+
+        if (string.IsNullOrEmpty(_AppSettings.ConnectionString))
+            throw new Exception("Connection string is missing");
+
+        DbConnection c = SqlClientFactory.Instance.CreateConnection();
+        c.ConnectionString = _AppSettings.ConnectionString;
+        c.Open();
+        return c;
+    }
+}