LevelOS-Core/DAL/DALAgenda.cs

using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using MLL;
using Microsoft.Data.SqlClient;

namespace DALL
{
    public class DALAgenda
    {
        private readonly string connectionString;

        public DALAgenda(string conn)
        {
            connectionString = conn;
        }

        // 🔹 LISTAR
        public List<ModeloAgenda> Listar()
        {
            var lista = new List<ModeloAgenda>();

            try
            {
                using (SqlConnection conn = new SqlConnection(connectionString))
                {
                    conn.Open();

                    string sql = "SELECT * FROM Agenda";

                    using (SqlCommand cmd = new SqlCommand(sql, conn))
                    using (SqlDataReader dr = cmd.ExecuteReader())
                    {
                        while (dr.Read())
                        {
                            lista.Add(new ModeloAgenda(
                                Convert.ToInt32(dr["ID_AGENDA"]),
                                dr["CODIGO"]?.ToString(),
                                dr["COMPROMISSO"]?.ToString(),
                                dr["dDATA"]?.ToString(),
                                dr["AVISAR"]?.ToString(),
                                dr["FUNC"]?.ToString(),
                                dr["DIA"]?.ToString(),
                                dr["HORA"]?.ToString(),
                                dr["REALIZADO"]?.ToString(),
                                dr["OS_VINC"]?.ToString()
                            ));
                        }
                    }
                }
            }
            catch
            {
                return new List<ModeloAgenda>();
            }

            return lista;
        }//Listar agenda

        // 🔹 INSERIR
        public bool Inserir(ModeloAgenda obj)
        {
            try
            {
                using (SqlConnection conn = new SqlConnection(connectionString))
                {
                    conn.Open();

                    string sql = @"INSERT INTO Agenda 
                    (COMPROMISSO, dDATA, AVISAR, FUNC, DIA, HORA, REALIZADO, OS_VINC)
                    VALUES
                    (@COMPROMISSO, @dDATA, @AVISAR, @FUNC, @DIA, @HORA, @REALIZADO, @OS_VINC)";

                    using (SqlCommand cmd = new SqlCommand(sql, conn))
                    {
                        //cmd.Parameters.AddWithValue("@CODIGO", obj.CODIGO ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@COMPROMISSO", obj.COMPROMISSO ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@dDATA", obj.DDATA ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@AVISAR", obj.AVISAR ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@FUNC", obj.FUNC ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@DIA", obj.DIA ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@HORA", obj.HORA ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@REALIZADO", obj.REALIZADO ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@OS_VINC", obj.OS_VINC ?? (object)DBNull.Value);

                        return cmd.ExecuteNonQuery() > 0;
                    }
                }
            }
            catch
            {
                return false;
            }
        }//Inserir agenda

        // 🔹 ALTERAR
        public bool Alterar(ModeloAgenda obj)
        {
            try
            {
                using (SqlConnection conn = new SqlConnection(connectionString))
                {
                    conn.Open();

                    string sql = @"UPDATE Agenda SET
                        CODIGO = @CODIGO,
                        COMPROMISSO = @COMPROMISSO,
                        dDATA = @dDATA,
                        AVISAR = @AVISAR,
                        FUNC = @FUNC,
                        DIA = @DIA,
                        HORA = @HORA,
                        REALIZADO = @REALIZADO,
                        OS_VINC = @OS_VINC
                    WHERE ID_AGENDA = @ID";

                    using (SqlCommand cmd = new SqlCommand(sql, conn))
                    {
                        cmd.Parameters.AddWithValue("@ID", obj.ID_AGENDA);
                        cmd.Parameters.AddWithValue("@CODIGO", obj.CODIGO ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@COMPROMISSO", obj.COMPROMISSO ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@dDATA", obj.DDATA ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@AVISAR", obj.AVISAR ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@FUNC", obj.FUNC ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@DIA", obj.DIA ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@HORA", obj.HORA ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@REALIZADO", obj.REALIZADO ?? (object)DBNull.Value);
                        cmd.Parameters.AddWithValue("@OS_VINC", obj.OS_VINC ?? (object)DBNull.Value);

                        return cmd.ExecuteNonQuery() > 0;
                    }
                }
            }
            catch
            {
                return false;
            }
        }//Alterar agenda

        // 🔹 EXCLUIR
        public bool Excluir(int id)
        {
            try
            {
                using (SqlConnection conn = new SqlConnection(connectionString))
                {
                    conn.Open();

                    string sql = "DELETE FROM Agenda WHERE ID_AGENDA = @ID";

                    using (SqlCommand cmd = new SqlCommand(sql, conn))
                    {
                        cmd.Parameters.AddWithValue("@ID", id);
                        return cmd.ExecuteNonQuery() > 0;
                    }
                }
            }
            catch
            {
                return false;
            }
        }//Excluir agenda

        public ModeloAgenda CarregarModeloAgenda(int cod)
        {
            try
            {
                using (SqlConnection conn = new SqlConnection(connectionString))
                {
                    conn.Open();

                    string sql = "SELECT * FROM Agenda WHERE ID_AGENDA = @ID";

                    using (SqlCommand cmd = new SqlCommand(sql, conn))
                    {
                        cmd.Parameters.AddWithValue("@ID", cod);

                        using (SqlDataReader dr = cmd.ExecuteReader())
                        {
                            if (dr.Read())
                            {
                                return new ModeloAgenda(
                                    Convert.ToInt32(dr["ID_AGENDA"]),
                                    dr["CODIGO"]?.ToString(),
                                    dr["COMPROMISSO"]?.ToString(),
                                    dr["dDATA"]?.ToString(),
                                    dr["AVISAR"]?.ToString(),
                                    dr["FUNC"]?.ToString(),
                                    dr["DIA"]?.ToString(),
                                    dr["HORA"]?.ToString(),
                                    dr["REALIZADO"]?.ToString(),
                                    dr["OS_VINC"]?.ToString()
                                );
                            }
                        }
                    }
                }
            }
            catch
            {
                throw new Exception("Erro ao carregar compromisso da agenda.");
            }

            return null;
        }//Carregar Modelo Agenda
    }
}