سلام
این نمونه رو ببینید ، من فکر میکنم تا حد زیادی ایده میده که چه باید بکنید
این هم اسکریپت دیتابیسش با چنتا رکورد نمونه (فقط آدرس محل ایجاد دیتابیس رو توی اسکریپت اصلاح کنید)
USE [master]
GO
/****** Object: Database [SampleDB] Script Date: 11/6/2018 3:18:35 PM ******/
CREATE DATABASE [SampleDB]
CONTAINMENT = NONE
ON PRIMARY
( NAME = N'SampleDB', FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL14.MSSQLSERVER\MSSQL\DATA\SampleDB.mdf ' , SIZE = 8192KB , MAXSIZE = UNLIMITED, FILEGROWTH = 65536KB )
LOG ON
( NAME = N'SampleDB_log', FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL14.MSSQLSERVER\MSSQL\DATA\SampleDB_log .ldf' , SIZE = 8192KB , MAXSIZE = 2048GB , FILEGROWTH = 65536KB )
GO
IF (1 = FULLTEXTSERVICEPROPERTY('IsFullTextInstalled'))
begin
EXEC [SampleDB].[dbo].[sp_fulltext_database] @action = 'enable'
end
GO
ALTER DATABASE [SampleDB] SET ANSI_NULL_DEFAULT OFF
GO
ALTER DATABASE [SampleDB] SET ANSI_NULLS OFF
GO
ALTER DATABASE [SampleDB] SET ANSI_PADDING OFF
GO
ALTER DATABASE [SampleDB] SET ANSI_WARNINGS OFF
GO
ALTER DATABASE [SampleDB] SET ARITHABORT OFF
GO
ALTER DATABASE [SampleDB] SET AUTO_CLOSE OFF
GO
ALTER DATABASE [SampleDB] SET AUTO_SHRINK OFF
GO
ALTER DATABASE [SampleDB] SET AUTO_UPDATE_STATISTICS ON
GO
ALTER DATABASE [SampleDB] SET CURSOR_CLOSE_ON_COMMIT OFF
GO
ALTER DATABASE [SampleDB] SET CURSOR_DEFAULT GLOBAL
GO
ALTER DATABASE [SampleDB] SET CONCAT_NULL_YIELDS_NULL OFF
GO
ALTER DATABASE [SampleDB] SET NUMERIC_ROUNDABORT OFF
GO
ALTER DATABASE [SampleDB] SET QUOTED_IDENTIFIER OFF
GO
ALTER DATABASE [SampleDB] SET RECURSIVE_TRIGGERS OFF
GO
ALTER DATABASE [SampleDB] SET DISABLE_BROKER
GO
ALTER DATABASE [SampleDB] SET AUTO_UPDATE_STATISTICS_ASYNC OFF
GO
ALTER DATABASE [SampleDB] SET DATE_CORRELATION_OPTIMIZATION OFF
GO
ALTER DATABASE [SampleDB] SET TRUSTWORTHY OFF
GO
ALTER DATABASE [SampleDB] SET ALLOW_SNAPSHOT_ISOLATION OFF
GO
ALTER DATABASE [SampleDB] SET PARAMETERIZATION SIMPLE
GO
ALTER DATABASE [SampleDB] SET READ_COMMITTED_SNAPSHOT OFF
GO
ALTER DATABASE [SampleDB] SET HONOR_BROKER_PRIORITY OFF
GO
ALTER DATABASE [SampleDB] SET RECOVERY FULL
GO
ALTER DATABASE [SampleDB] SET MULTI_USER
GO
ALTER DATABASE [SampleDB] SET PAGE_VERIFY CHECKSUM
GO
ALTER DATABASE [SampleDB] SET DB_CHAINING OFF
GO
ALTER DATABASE [SampleDB] SET FILESTREAM( NON_TRANSACTED_ACCESS = OFF )
GO
ALTER DATABASE [SampleDB] SET TARGET_RECOVERY_TIME = 60 SECONDS
GO
EXEC sys.sp_db_vardecimal_storage_format N'SampleDB', N'ON'
GO
USE [SampleDB]
GO
/****** Object: Table [dbo].[Branch] Script Date: 11/6/2018 3:18:35 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Branch](
[Id] [int] IDENTITY(1,1) NOT NULL,
[Name] [nvarchar](100) NULL,
[Address] [nvarchar](max) NULL,
CONSTRAINT [PK_Branch] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
/****** Object: Table [dbo].[Employee] Script Date: 11/6/2018 3:18:35 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Employee](
[Id] [int] IDENTITY(1,1) NOT NULL,
[PersonalId] [nvarchar](20) NULL,
[Name] [nvarchar](50) NULL,
[Family] [nvarchar](50) NULL,
[PhoneNumber] [nvarchar](20) NULL,
[Posotion] [nvarchar](100) NULL,
[BranchId] [int] NULL,
CONSTRAINT [PK_Employee] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET IDENTITY_INSERT [dbo].[Branch] ON
GO
INSERT [dbo].[Branch] ([Id], [Name], [Address]) VALUES (1, N'تهران', NULL)
GO
INSERT [dbo].[Branch] ([Id], [Name], [Address]) VALUES (2, N'شیراز', NULL)
GO
INSERT [dbo].[Branch] ([Id], [Name], [Address]) VALUES (3, N'اصفهان', NULL)
GO
INSERT [dbo].[Branch] ([Id], [Name], [Address]) VALUES (4, N'مشهد', NULL)
GO
INSERT [dbo].[Branch] ([Id], [Name], [Address]) VALUES (5, N'تبریز', NULL)
GO
SET IDENTITY_INSERT [dbo].[Branch] OFF
GO
SET IDENTITY_INSERT [dbo].[Employee] ON
GO
INSERT [dbo].[Employee] ([Id], [PersonalId], [Name], [Family], [PhoneNumber], [Posotion], [BranchId]) VALUES (1, N'12345', N'علی', N'اکبری', N'09121234567', N'مدیر', 1)
GO
INSERT [dbo].[Employee] ([Id], [PersonalId], [Name], [Family], [PhoneNumber], [Posotion], [BranchId]) VALUES (2, N'12121', N'اکبر', N'محمدی', NULL, N'معاون', 1)
GO
INSERT [dbo].[Employee] ([Id], [PersonalId], [Name], [Family], [PhoneNumber], [Posotion], [BranchId]) VALUES (3, N'33333', N'ایمان', N'خالدی', NULL, N'کارمند', 1)
GO
INSERT [dbo].[Employee] ([Id], [PersonalId], [Name], [Family], [PhoneNumber], [Posotion], [BranchId]) VALUES (4, N'66554', N'رضا', N'عبادی', N'232345', NULL, 2)
GO
SET IDENTITY_INSERT [dbo].[Employee] OFF
GO
ALTER TABLE [dbo].[Employee] WITH CHECK ADD CONSTRAINT [FK_Employee_Branch] FOREIGN KEY([BranchId])
REFERENCES [dbo].[Branch] ([Id])
GO
ALTER TABLE [dbo].[Employee] CHECK CONSTRAINT [FK_Employee_Branch]
GO
USE [master]
GO
ALTER DATABASE [SampleDB] SET READ_WRITE
GO
فایل دیتابیس رو هم جدا قرار میدم ، البته چون با نسخه 2017 ساخته شده ممکنه نتونید بازش کنید (اگر نشد از همون اسکریپت استفاده کنید).
نکته بعدی اینه که کانکشن استرینگ رو داخل فایل App.Config تغییر بدید.