Get Rows Values Of Database Table (Firebird Example)

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Mon Aug 22 2022 11:40:59 GMT+0000 (Coordinated Universal Time)

Saved by @HristoT #c#

var source = await firebird.ExecuteDataTableAsync(sql);

var sb = new StringBuilder();
for (int i = 0; i < source.Rows.Count; i++)
{
    var row = string.Join(",", source.Rows[i].ItemArray);
    sb.AppendLine(row);
}

// the class

public class FB : IDatabaseProvider
{
        private FbConnection Connection;
        private FbTransaction Transaction;

        public FB(string connectionString = null)
        {
            this.Connection = new FbConnection(connectionString);
        }
  
  public async Task<DataTable> ExecuteDataTableAsync(string sql, params IDbDataParameter[] parameters)
        {
            using (var cmd = new FbCommand(sql, this.Connection))
            using (var adp = new FbDataAdapter(cmd))
            {
                cmd.Transaction = this.Transaction;
                if (this.Connection.State != ConnectionState.Open)
                {
                    await this.Connection.OpenAsync();
                }
                if (parameters.Length > 0)
                {
                    cmd.Parameters.AddRange(parameters);
                }

                var data = new DataTable("data");
                adp.Fill(data);
                return data;
            }
        }
}

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public int Id { get; set; }

        [Required]
        public string Klant { get; set; }

        [DataType(DataType.EmailAddress)]
        public string Email { get; set; }

        [DataType(DataType.PhoneNumber)]
        public string Telefoonnummer { get; set; }

        [Required]
        public int Aantalpersonen { get; set; }

        [Required]
        [DataType(DataType.Date)]
        public DateTime Datum { get; set; }

        [Required]
        [DataType(DataType.Time)]
        public DateTime Begintijd { get; set; }

        [Required]
        [DataType(DataType.Time)]
        public DateTime Eindtijd { get; set; }

        [DataType(DataType.MultilineText)]
        public string Opmerkingen { get; set; }
        public string Medewerker { get; set; }
        public DateTime AanmaakDatum { get; set; }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

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        public int Id { get; set; }
        public int Tafelnr { get; set; }
        public DateTime Bezoek { get; set; }
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        public int Bonnummer { get; set; }

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        public List<Bestelling> Bestellings { get; set; }
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Class Reserveren

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;

namespace GoodTimes.Models
{
    public class Reserveren
    {
        public int Id { get; set; }

        [Required]
        public string Klant { get; set; }

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        public string Medewerker { get; set; }
        public DateTime AanmaakDatum { get; set; }
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ApplicationDbContext

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore;
using GoodTimes.Models;

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{
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using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;

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        public int Id { get; set; }
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        public string Medewerker { get; set; }
        public DateTime Plaatsing { get; set; }
        public bool IsGereed { get; set; }

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        //public int BonId { get; set; }
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using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;

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    {
        public int Id { get; set; }
        [Required]
        public string Naam { get; set; }
        public int Volgorde { get; set; }

        public int MenukaartId { get; set; }
        public Menukaart Menukaart { get; set; }

        public List<Product> products { get; set; }
    }
}

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using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;

namespace GoodTimes.Models
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        public int CategorieId { get; set; }
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using System;
using System.Collections.Generic;
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