App.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
  <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --></configSections>
  <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
      <parameters>
        <parameter value="mssqllocaldb" />
      </parameters>
    </defaultConnectionFactory>
    <providers>
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
    </providers>
  </entityFramework>

  <connectionStrings>
    <!--Sqllocaldb-->
    <add name="DBConnection" connectionString="data source=(localdb)\MSSQLLocalDB;Initial Catalog=FS;Integrated Security=True; MultipleActiveResultSets=True;" providerName="System.Data.SqlClient" />
    <!--MS SQL Express-->
    <!-- .\ - WIN-2016-SERVER -->
    <!--<add name="DBConnection" connectionString="data source=.\SQLEXPRESS;Initial Catalog=MSSQLLocalDB;User ID=SQL_User;Password=link; MultipleActiveResultSets=True;" providerName="System.Data.SqlClient" />-->
  </connectionStrings>

  <startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6" /></startup></configuration>