using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Dapper; using System.Data; using System.Data.SqlClient; using System.Windows.Forms; namespace marketconnectionNET { public class dataaccess { public List GetLocations(string LocationName) { using (IDbConnection connection = new System.Data.SqlClient.SqlConnection(helper.CnnVal("marketdb"))) { var output = connection.Query ($"select * from cities where city_name = '{ LocationName }'").ToList(); return output; } } public void InsertPerson(string Firstname, string Lastname, string Date_of_birth, string Streetname, string Streetnumber) { using (IDbConnection connection = new System.Data.SqlClient.SqlConnection(helper.CnnVal("marketdb"))) { //person newPerson = new person { firstname = Firstname, lastname = Lastname, date_of_birth = Date_of_birth, streetname = Streetname, streetnumber = Streetnumber }; List people = new List(); people.Add(new person { firstname = Firstname, lastname = Lastname, date_of_birth = Date_of_birth, streetname = Streetname, streetnumber = Streetnumber, }); connection.Execute("insert into dbo.persons (firstname, lastname, date_of_birth, streetname, streetnumber)" + " values (@firstname, @lastname, @date_of_birth, @streetname, @streetnumber) ", people); } } } }