// @nuget: Dapper -Version 1.60.6

​

​

using Dapper;

using System;

using System.Collections.Generic;

using System.Data.SqlClient;

using System.Linq;

using System.Text;

public static 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 class OrderDetail

    {

        public int OrderDetailID { get; set; }

        public int OrderID { get; set; }

        public int ProductID { get; set; }

        public int Quantity { get; set; }

    }   

    public static void Main()

    {

        string sqlOrderDetails = "SELECT top 5 * FROM OrderDetails;";

        string sqlOrderDetail = "SELECT * FROM OrderDetails WHERE OrderDetailID = @OrderDetailID;";

        string sqlCustomerInsert = "IF NOT EXISTS (SELECT 1 from Customers where CustomerName ='Mark') INSERT INTO Customers (CustomerName) Values (@CustomerName);";

​

        using (var connection = new SqlConnection(FiddleHelper.GetConnectionStringSqlServerW3Schools()))

        {

            //var orderDetails = connection.Query<OrderDetail>(sqlOrderDetails).ToList();

            //var orderDetail = connection.QueryFirstOrDefault<OrderDetail>(sqlOrderDetail, new {OrderDetailID = 1});

            //Console.WriteLine("Total Customers - " + lstCust.Count());

            var affectedRows = connection.Execute(sqlCustomerInsert,  new {CustomerName = "Mark"});

            //var lstCust = connection.Query<Customer>("select CustomerName from Customers where CustomerName = 'Mark'",null);

            /*

            //Console.WriteLine(orderDetails.Count);

            Console.WriteLine(affectedRows);

            lstCust = connection.Query<Customer>("select CustomerName from Customers where CustomerName = 'Mark'",null);

            Console.WriteLine(lstCust.Count());

            //FiddleHelper.WriteTable(orderDetails);

            //FiddleHelper.WriteTable(new List<OrderDetail>() { orderDetail });

            */

            DynamicParameters _param = new DynamicParameters();

            _param.Add("@CustomerName","Mark");         

            var lstCust = connection.Query<Customer>("select CustomerName from Customers where CustomerName = @CustomerName",_param);

            Console.WriteLine("Mark Found? - " + lstCust.Count());

            Console.WriteLine(_param.ArgsAsSql());

        }

    }

     public static string ArgsAsSql(this DynamicParameters args)

        {

            var sb = new StringBuilder();

            foreach (var name in args.ParameterNames)

            {

                var pValue = args.Get<dynamic>(name);

​

                var type = pValue.GetType();

​

                if (type == typeof(DateTime))

                    sb.AppendFormat("DECLARE @{0} DATETIME ='{1}'\n", name, pValue.ToString("yyyy-MM-dd HH:mm:ss.fff"));

                else if (type == typeof(bool))

                    sb.AppendFormat("DECLARE @{0} BIT = {1}\n", name, (bool)pValue ? 1 : 0);

                else if (type == typeof(int))

                    sb.AppendFormat("DECLARE @{0} INT = {1}\n", name, pValue);

                else if (type == typeof(List<int>))

                    sb.AppendFormat("-- REPLACE @{0} IN SQL: ({1})\n", name, string.Join(",", (List<int>)pValue));

                else

                    sb.AppendFormat("DECLARE @{0} NVARCHAR(MAX) = '{1}'\n", name, pValue.ToString());

            }

​

            return sb.ToString();

        }

​

}