BWPM/CoreWebAPI1/Controllers/MenuItemController.cs

using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using CoreWebAPI1.Models;
using BWPMModels;
using System.Data;
using SecuringWebApiUsingApiKey.Attributes;

// For more information on enabling Web API for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860

namespace CoreWebAPI1.Controllers
{
    [Route("api/[controller]")]
    [ApiController]

    public class MenuItemController : ControllerBase
    {
        // GET: api/<MenuController>
        [HttpGet]
        public List<MenuItem> Get()
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabledata("Select * from [MenuItem] order by parentid, sort", false, true);
            return dbh.ConvertDataTable<MenuItem>(dbh.Get_Tabledata("Select * from [MenuItem] order by parentid, sort", false, true));
        }

        // GET api/<MenuController>/5
        [HttpGet("{id}")]
        public List<MenuItem> Get(int id)

        {
            dbhelper dbh = new dbhelper();
            List<MenuItem> Details = new List<MenuItem>();
            return dbh.ConvertDataTable<MenuItem>(dbh.Get_Tabledata("Select * from menuitem where aktiv=1 and ( menutype=100 or menutype=1 or menutype = " + id.ToString() + ") order by menutype,parentid, sort",false,true));
        }

        // POST api/<MenuController>
        [HttpPost]
        public void Post([FromBody] MenuItem MenuItem)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabeldata_for_Update("Select top 1 * from [MenuItem] where id=-1", false, true);
            DataRow dr = dbh.dsdaten.Tables[0].NewRow();
            MenuItem.GetType().GetProperties().ToList().ForEach(f =>
            {
                try
                {
                    if (f.PropertyType == typeof(DateTime))
                    {
                        dr[f.Name] = (DateTime)f.GetValue(MenuItem, null);

                    }
                    else
                    {
                        dr[f.Name] = f.GetValue(MenuItem, null);
                    }
                }
                catch (Exception ex) { string s = ex.Message; }
            });
            dbh.dsdaten.Tables[0].Rows.Add(dr);
            dbh.Update_Tabeldata();
        }

        // PUT api/<MenuController>/5
        [HttpPut("{id}")]
        public void Put(int id, [FromBody] MenuItem MenuItem)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabeldata_for_Update("Select top 1 * from [MenuItem] where id=" + id.ToString(), false, true);
            DataRow dr = dbh.dsdaten.Tables[0].Rows[0];
            MenuItem.GetType().GetProperties().ToList().ForEach(f =>
            {
                try
                {
                    if (f.PropertyType == typeof(DateTime))
                    {
                        dr[f.Name] = (DateTime)f.GetValue(MenuItem, null);
                    }
                    else
                    {
                        dr[f.Name] = f.GetValue(MenuItem, null);
                    }
                }
                catch (Exception ex) { string s = ex.Message; }
            });
            dbh.Update_Tabeldata();

        }

        // DELETE api/<MenuController>/5
        [HttpDelete("{id}")]
        public void Delete(int id)
        {
            dbhelper dbh = new dbhelper();
            dbh.Get_Tabeldata_for_Update("Select top 1 * from [MenuItem] where id=" + id, false, true);
            DataRow dr = dbh.dsdaten.Tables[0].Rows[0];
            dr["Aktiv"] = false;
            dr["mutiert_am"] = DateTime.Now;
            dbh.Update_Tabeldata();
        }
    }
}