// Dapper Plus

// Doc: https://dapper-plus.net/

​

// @nuget: Dapper -Version 1.60.6

// @nuget: Z.Dapper.Plus

​

using System;

using System.Collections.Generic;

using System.Data.SqlClient;

using System.Linq;

using Dapper;

using Z.Dapper.Plus;

​

public class Program

{   

    public class Customer 

    {

        public int CustomerID {get;set;}

        public string CustomerName {get;set;}

        public string ContactName {get;set;}

        public string Address {get;set;}

        public string City {get;set;}

        public string PostalCode {get;set;}

        public string Country {get;set;}

    }

    public static void Main()

    {

        GenerateDatabase();

        DapperPlusManager.Entity<Customer>().Table("Customers")

                                         .Identity(x => x.CustomerID);

​

​

        var connection = new SqlConnection(FiddleHelper.GetConnectionStringSqlServer());

        var customers = GenerateCustomers(5);

        connection.BulkInsert(customers);

        FiddleHelper.WriteTable("1 - Customers (After Insert):", connection.Query<Customer>("SELECT * FROM CUSTOMERS WHERE CustomerName LIKE 'Customer_%'"));

        // UPDATE 3 customers

        customers.Take(3).ToList().ForEach(x => x.CustomerName += "_Updated");

        // ADD 3 new customers

        customers.AddRange(GenerateCustomers(3));

        connection.BulkMerge(customers);

        FiddleHelper.WriteTable("2 - Customers (After Merge):", connection.Query<Customer>("SELECT * FROM CUSTOMERS WHERE CustomerName LIKE 'Customer_%'"));

    }

    public static int Counter = 0;

    public static List<Customer> GenerateCustomers(int count)

    {

        count += Counter;

        var customers = new List<Customer>();

        for(;Counter < count; Counter++)

        {

            customers.Add(new Customer() { CustomerName = "CustomerName_" + Counter, ContactName = "ContactName_" + Counter, Address = "Address_" + Counter, City = "City_" + Counter, PostalCode = "PostalCode_" + Counter, Country = "Country_" + Counter});

        }

        return customers;

    }

    public static void GenerateDatabase()

    {

        using (var connection = new SqlConnection(FiddleHelper.GetConnectionStringSqlServer()))

        {

            connection.Open();

            using (var command = connection.CreateCommand())

            {

                command.CommandText = @"   

CREATE TABLE [Customers]

(

    [CustomerID] [INT] IDENTITY(1,1) NOT NULL,

    [CustomerName] [NVARCHAR](255) NULL,

    [ContactName] [NVARCHAR](255) NULL,

    [Address] [NVARCHAR](255) NULL,

    [City] [NVARCHAR](255) NULL,

    [PostalCode] [NVARCHAR](255) NULL,

    [Country] [NVARCHAR](255) NULL,

    CONSTRAINT [PK_Customers] PRIMARY KEY CLUSTERED 

    (

        [CustomerID] ASC

    )

) ";

                command.ExecuteNonQuery();

            }

        }

    }

}