From 484fe00bfad0ba53d75f0fcd425ee8d16c3f264b Mon Sep 17 00:00:00 2001
From: Nicolas Felipe <levelcode@nfinformatica.com.br>
Date: Mon, 20 Jul 2026 20:57:07 -0300
Subject: [PATCH] 20/07/2026 - DAL (DALItensNota) Parte 4/10 concluida.

---
 DAL/DALItensNota.cs | 1164 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 1164 insertions(+)
 create mode 100644 DAL/DALItensNota.cs

diff --git a/DAL/DALItensNota.cs b/DAL/DALItensNota.cs
new file mode 100644
index 0000000..2c8286f
--- /dev/null
+++ b/DAL/DALItensNota.cs
@@ -0,0 +1,1164 @@
+/*
+--------------------------------------------------
+ Classe: DALItensNota
+ Tabela: Itens_nota
+ Modelo: ModeloItensNota
+
+ Responsável por:
+ - CRUD dos itens da NF-e
+ - Controle tributário
+ - Totais da nota
+ - Estatísticas
+ - Relatórios
+ - Integração com estoque
+ - Integração com Itens
+ - Inteligência fiscal
+
+ Partes:
+ 1 - CRUD
+ 2 - Pesquisas
+ 3 - Nota Fiscal
+ 4 - Impostos
+ 5 - Totais
+ 6 - Dashboard
+ 7 - Estatísticas
+ 8 - Relatórios
+ 9 - Integração
+10 - Inteligência
+--------------------------------------------------
+*/
+using Microsoft.Data.SqlClient;
+using MLL;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DAL
+{
+    public class DALItensNota
+    {
+        private readonly string connectionString;
+        public DALItensNota(string connectionString)
+        {
+            this.connectionString = connectionString;
+        }//DALItensNota
+
+        #region CRUD - Create, Read, Update, Delete
+        public bool Inserir(ModeloItensNota modelo)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            string sql = @"
+    INSERT INTO Itens_nota
+    (
+        COD_NOTA,
+        TIPO,
+        COD_VENDEDOR,
+        COD_ITEM,
+        DESCRICAO,
+        UNIDADE,
+        QTD,
+        PRECO,
+        ICMS,
+        IPI,
+        ISS,
+        DESCONTO,
+        TOTAL,
+        CFOP,
+        CST,
+        GTIN,
+        INF_ADIC
+    )
+    VALUES
+    (
+        @COD_NOTA,
+        @TIPO,
+        @COD_VENDEDOR,
+        @COD_ITEM,
+        @DESCRICAO,
+        @UNIDADE,
+        @QTD,
+        @PRECO,
+        @ICMS,
+        @IPI,
+        @ISS,
+        @DESCONTO,
+        @TOTAL,
+        @CFOP,
+        @CST,
+        @GTIN,
+        @INF_ADIC
+    )";
+
+            SqlCommand cmd = new(sql, conn);
+
+            PreencherParametros(cmd, modelo);
+
+            conn.Open();
+
+            return cmd.ExecuteNonQuery() > 0;
+        }//Inserir
+        public bool Alterar(ModeloItensNota modelo)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            string sql = @"
+    UPDATE Itens_nota
+    SET
+
+        COD_NOTA=@COD_NOTA,
+        TIPO=@TIPO,
+        COD_VENDEDOR=@COD_VENDEDOR,
+        COD_ITEM=@COD_ITEM,
+        DESCRICAO=@DESCRICAO,
+        UNIDADE=@UNIDADE,
+        QTD=@QTD,
+        PRECO=@PRECO,
+        ICMS=@ICMS,
+        IPI=@IPI,
+        ISS=@ISS,
+        DESCONTO=@DESCONTO,
+        TOTAL=@TOTAL,
+        CFOP=@CFOP,
+        CST=@CST,
+        GTIN=@GTIN,
+        INF_ADIC=@INF_ADIC
+
+    WHERE ID_ITENS_NOTA=@ID";
+
+            SqlCommand cmd = new(sql, conn);
+
+            PreencherParametros(cmd, modelo);
+
+            cmd.Parameters.AddWithValue(
+                "@ID",
+                modelo.ID_ITENS_NOTA);
+
+            conn.Open();
+
+            return cmd.ExecuteNonQuery() > 0;
+        }//Alterar
+        public bool Excluir(int id)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            SqlCommand cmd = new(
+                @"DELETE FROM Itens_nota
+          WHERE ID_ITENS_NOTA=@ID",
+                conn);
+
+            cmd.Parameters.AddWithValue("@ID", id);
+
+            conn.Open();
+
+            return cmd.ExecuteNonQuery() > 0;
+        }//Excluir
+        public ModeloItensNota CarregarModelo(int id)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE ID_ITENS_NOTA=@ID",
+                conn);
+
+            cmd.Parameters.AddWithValue("@ID", id);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            if (dr.Read())
+                return PreencherModelo(dr);
+
+            return new ModeloItensNota();
+        }//CarregarModelo
+        public ModeloItensNota CarregarModeloPorCodigoString(string codigo)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE CODIGO=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codigo);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            if (dr.Read())
+                return PreencherModelo(dr);
+
+            return new ModeloItensNota();
+        }//CarregarModeloPorCodigoString
+        public bool ExisteItenNota(int id)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT COUNT(*)
+          FROM Itens_nota
+          WHERE ID_ITENS_NOTA=@ID",
+                conn);
+
+            cmd.Parameters.AddWithValue("@ID", id);
+
+            conn.Open();
+
+            return Convert.ToInt32(
+                cmd.ExecuteScalar()) > 0;
+        }//ExisteItenNota
+        public bool ExisteCodigoItenNota(string codigo)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT COUNT(*)
+          FROM Itens_nota
+          WHERE CODIGO=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codigo);
+
+            conn.Open();
+
+            return Convert.ToInt32(
+                cmd.ExecuteScalar()) > 0;
+        }//ExisteCodigoItenNota
+        public string ObterUltimoCodigo()
+        {
+            using SqlConnection conn = new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT TOP 1 CODIGO
+          FROM Itens_nota
+          ORDER BY ID_ITENS_NOTA DESC",
+                conn);
+
+            conn.Open();
+
+            return Convert.ToString(
+                cmd.ExecuteScalar())
+                ?? string.Empty;
+        }//ObterUltimoCodigo
+        private void PreencherParametros(SqlCommand cmd,ModeloItensNota modelo)
+        {
+            cmd.Parameters.AddWithValue(
+                "@COD_NOTA",
+                modelo.COD_NOTA);
+
+            cmd.Parameters.AddWithValue(
+                "@TIPO",
+                modelo.TIPO);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_VENDEDOR",
+                modelo.COD_VENDEDOR);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_ITEM",
+                modelo.COD_ITEM);
+
+            cmd.Parameters.AddWithValue(
+                "@DESCRICAO",
+                modelo.DESCRICAO);
+
+            cmd.Parameters.AddWithValue(
+                "@UNIDADE",
+                modelo.UNIDADE);
+
+            cmd.Parameters.AddWithValue(
+                "@QTD",
+                modelo.QTD);
+
+            cmd.Parameters.AddWithValue(
+                "@PRECO",
+                modelo.PRECO);
+
+            cmd.Parameters.AddWithValue(
+                "@ICMS",
+                modelo.ICMS);
+
+            cmd.Parameters.AddWithValue(
+                "@IPI",
+                modelo.IPI);
+
+            cmd.Parameters.AddWithValue(
+                "@ISS",
+                modelo.ISS);
+
+            cmd.Parameters.AddWithValue(
+                "@DESCONTO",
+                modelo.DESCONTO);
+
+            cmd.Parameters.AddWithValue(
+                "@TOTAL",
+                modelo.TOTAL);
+
+            cmd.Parameters.AddWithValue(
+                "@CFOP",
+                modelo.CFOP);
+
+            cmd.Parameters.AddWithValue(
+                "@CST",
+                modelo.CST);
+
+            cmd.Parameters.AddWithValue(
+                "@GTIN",
+                modelo.GTIN);
+
+            cmd.Parameters.AddWithValue(
+                "@INF_ADIC",
+                modelo.INF_ADIC);
+        }//PreencherParametros
+        private ModeloItensNota PreencherModelo(SqlDataReader dr)
+        {
+            return new ModeloItensNota
+            {
+                ID_ITENS_NOTA =
+                    Convert.ToInt32(
+                        dr["ID_ITENS_NOTA"]),
+
+                CODIGO =
+                    Convert.ToString(
+                        dr["CODIGO"]) ?? "",
+
+                COD_NOTA =
+                    Convert.ToString(
+                        dr["COD_NOTA"]) ?? "",
+
+                TIPO =
+                    Convert.ToString(
+                        dr["TIPO"]) ?? "",
+
+                COD_VENDEDOR =
+                    Convert.ToString(
+                        dr["COD_VENDEDOR"]) ?? "",
+
+                COD_ITEM =
+                    Convert.ToString(
+                        dr["COD_ITEM"]) ?? "",
+
+                DESCRICAO =
+                    Convert.ToString(
+                        dr["DESCRICAO"]) ?? "",
+
+                UNIDADE =
+                    Convert.ToString(
+                        dr["UNIDADE"]) ?? "",
+
+                QTD =
+                    Convert.ToString(
+                        dr["QTD"]) ?? "",
+
+                PRECO =
+                    Convert.ToString(
+                        dr["PRECO"]) ?? "",
+
+                ICMS =
+                    Convert.ToString(
+                        dr["ICMS"]) ?? "",
+
+                IPI =
+                    Convert.ToString(
+                        dr["IPI"]) ?? "",
+
+                ISS =
+                    Convert.ToString(
+                        dr["ISS"]) ?? "",
+
+                DESCONTO =
+                    Convert.ToString(
+                        dr["DESCONTO"]) ?? "",
+
+                TOTAL =
+                    Convert.ToString(
+                        dr["TOTAL"]) ?? "",
+
+                CFOP =
+                    Convert.ToString(
+                        dr["CFOP"]) ?? "",
+
+                CST =
+                    Convert.ToString(
+                        dr["CST"]) ?? "",
+
+                GTIN =
+                    Convert.ToString(
+                        dr["GTIN"]) ?? "",
+
+                INF_ADIC =
+                    Convert.ToString(
+                        dr["INF_ADIC"]) ?? ""
+            };
+        }//PreencherModelo
+
+        #endregion
+        #region Pesquisas - Searches
+        public List<ModeloItensNota> Listar()
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn = new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          ORDER BY ID_ITENS_NOTA DESC",
+                conn);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//Listar
+        public List<ModeloItensNota> ListarPorNota(string codigoNota)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE COD_NOTA=@COD_NOTA",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_NOTA",
+                codigoNota);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorNota
+        public List<ModeloItensNota>ListarPorItem(string codigoItem)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE COD_ITEM=@COD_ITEM",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_ITEM",
+                codigoItem);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorItem
+        public List<ModeloItensNota>ListarPorVendedor(string vendedor)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE COD_VENDEDOR=@VENDEDOR",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@VENDEDOR",
+                vendedor);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorVendedor
+        public List<ModeloItensNota>ListarPorTipo(string tipo)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE TIPO=@TIPO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@TIPO",
+                tipo);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorTipo
+        public List<ModeloItensNota>ListarPorCFOP(string cfop)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE CFOP=@CFOP",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CFOP",
+                cfop);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorCFOP
+        public List<ModeloItensNota>ListarPorCST(string cst)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE CST=@CST",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CST",
+                cst);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorCST
+        public List<ModeloItensNota>ListarPorGTIN(string gtin)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE GTIN=@GTIN",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@GTIN",
+                gtin);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorGTIN
+        public List<ModeloItensNota>ListarPorDescricao(string descricao)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE DESCRICAO LIKE @DESC",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@DESC",
+                "%" + descricao + "%");
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorDescricao
+        public List<ModeloItensNota>ListarPorPeriodo( string notaInicial,string notaFinal)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE COD_NOTA
+          BETWEEN @INI AND @FIM",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@INI",
+                notaInicial);
+
+            cmd.Parameters.AddWithValue(
+                "@FIM",
+                notaFinal);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorPeriodo
+        public List<ModeloItensNota>ListarPorQuantidade(string quantidade)
+        {
+            List<ModeloItensNota> lista = [];
+
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT *
+          FROM Itens_nota
+          WHERE QTD=@QTD",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@QTD",
+                quantidade);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            while (dr.Read())
+                lista.Add(
+                    PreencherModelo(dr));
+
+            return lista;
+        }//ListarPorQuantidade
+
+        #endregion
+        #region Operações da NF-e - Nota Fiscal Eletrônica
+        public int QuantidadeItensNota(string codNota)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT COUNT(*)
+          FROM Itens_nota
+          WHERE COD_NOTA=@COD_NOTA",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_NOTA",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToInt32(
+                cmd.ExecuteScalar());
+        }//QuantidadeItensNota
+        public bool PossuiItens(string codNota)
+        {
+            return QuantidadeItensNota(
+                codNota) > 0;
+        }//PossuiItens
+        public ModeloItensNota PrimeiroItem(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT TOP 1 *
+          FROM Itens_nota
+          WHERE COD_NOTA=@COD_NOTA
+          ORDER BY ID_ITENS_NOTA",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_NOTA",
+                codNota);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            if (dr.Read())
+                return PreencherModelo(dr);
+
+            return new ModeloItensNota();
+        }//PrimeiroItem
+        public ModeloItensNota UltimoItem(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT TOP 1 *
+          FROM Itens_nota
+          WHERE COD_NOTA=@COD_NOTA
+          ORDER BY ID_ITENS_NOTA DESC",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_NOTA",
+                codNota);
+
+            conn.Open();
+
+            using SqlDataReader dr =
+                cmd.ExecuteReader();
+
+            if (dr.Read())
+                return PreencherModelo(dr);
+
+            return new ModeloItensNota();
+        }//UltimoItem
+        public decimal ValorTotalItens(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                SUM(
+                    TRY_CONVERT(
+                        decimal(18,2),
+                        TOTAL
+                    )
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@COD_NOTA",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_NOTA",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//ValorTotalItens
+        public decimal QuantidadeTotalItens(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                SUM(
+                    TRY_CONVERT(
+                        decimal(18,4),
+                        QTD
+                    )
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@COD_NOTA",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_NOTA",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//QuantidadeTotalItens
+        public List<ModeloItensNota>ObterItensNota(string codNota)
+        {
+            return ListarPorNota(
+                codNota);
+        }//ObterItensNota
+        public bool ExcluirItensNota(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"DELETE FROM Itens_nota
+          WHERE COD_NOTA=@COD_NOTA",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@COD_NOTA",
+                codNota);
+
+            conn.Open();
+
+            return cmd.ExecuteNonQuery() > 0;
+        }//ExcluirItensNota
+        public int DuplicarItens(string notaOrigem,string notaDestino)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"
+        INSERT INTO Itens_nota
+        (
+            COD_NOTA,
+            TIPO,
+            COD_VENDEDOR,
+            COD_ITEM,
+            DESCRICAO,
+            UNIDADE,
+            QTD,
+            PRECO,
+            ICMS,
+            IPI,
+            ISS,
+            DESCONTO,
+            TOTAL,
+            CFOP,
+            CST,
+            GTIN,
+            INF_ADIC
+        )
+        SELECT
+            @DESTINO,
+            TIPO,
+            COD_VENDEDOR,
+            COD_ITEM,
+            DESCRICAO,
+            UNIDADE,
+            QTD,
+            PRECO,
+            ICMS,
+            IPI,
+            ISS,
+            DESCONTO,
+            TOTAL,
+            CFOP,
+            CST,
+            GTIN,
+            INF_ADIC
+        FROM Itens_nota
+        WHERE COD_NOTA=@ORIGEM",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@ORIGEM",
+                notaOrigem);
+
+            cmd.Parameters.AddWithValue(
+                "@DESTINO",
+                notaDestino);
+
+            conn.Open();
+
+            return cmd.ExecuteNonQuery();
+        }//DuplicarItens
+
+        #endregion
+        #region Impostos - Taxes
+        public decimal TotalICMS(string codNota)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                SUM(
+                    TRY_CONVERT(decimal(18,2),V_ICMS)
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//TotalICMS
+        public decimal TotalICMSST(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                SUM(
+                    TRY_CONVERT(decimal(18,2),VICMSST)
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//TotalICMSST
+        public decimal TotalICMSUFDest(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                SUM(
+                    TRY_CONVERT(decimal(18,2),
+                    vICMSUFDest)
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//TotalICMSUFDest
+        public decimal TotalICMSUFRemet(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                SUM(
+                    TRY_CONVERT(decimal(18,2),
+                    vICMSUFRemet)
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//TotalICMSUFRemet
+        public decimal AliquotaMediaICMS(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                AVG(
+                    TRY_CONVERT(decimal(18,2),
+                    ALIQ_ICMS)
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//AliquotaMediaICMS
+        public decimal TotalIPI(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                SUM(
+                    TRY_CONVERT(decimal(18,2),
+                    V_IPI)
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//TotalIPI
+        public decimal AliquotaMediaIPI( string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                AVG(
+                    TRY_CONVERT(decimal(18,2),
+                    IPI)
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//AliquotaMediaIPI
+        public decimal TotalISS(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                SUM(
+                    TRY_CONVERT(decimal(18,2),
+                    ISS)
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//TotalISS
+        public decimal AliquotaMediaISS(string codNota)
+        {
+            using SqlConnection conn =
+                new(connectionString);
+
+            SqlCommand cmd = new(
+                @"SELECT ISNULL(
+                AVG(
+                    TRY_CONVERT(decimal(18,2),
+                    ISS)
+                ),0)
+          FROM Itens_nota
+          WHERE COD_NOTA=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue(
+                "@CODIGO",
+                codNota);
+
+            conn.Open();
+
+            return Convert.ToDecimal(
+                cmd.ExecuteScalar());
+        }//AliquotaMediaISS
+
+        #endregion
+        //--------------------------------------------------
+        // Status de desenvolvimento das partes da classe DALItensNota
+        //Parte 1  -> CRUD              -> Concluída
+        //Parte 2  -> Pesquisas         -> Concluída
+        //Parte 3  -> Nota Fiscal       -> Concluida
+        //Parte 4  -> Impostos          -> Concluída
+        //Parte 5  -> Totais            -> Pendente
+        //Parte 6  -> Dashboard         -> Pendente
+        //Parte 7  -> Estatísticas      -> Pendente
+        //Parte 8  -> Relatórios        -> Pendente
+        //Parte 9  -> Integração        -> Pendente
+        //Parte 10 -> Inteligência      -> Pendente
+    }
+}