22/06/2026 - DAL Itens (50% concluida).

DAL/DALIcmsUf.cs

@@ -0,0 +1,286 @@
+using Microsoft.Data.SqlClient;
+using MLL;
+using System;
+using System.Collections.Generic;
+using System.Data;
+
+namespace DALL
+{
+    public class DALIcmsUf
+    {
+        private readonly string connectionString;
+
+        public DALIcmsUf(string conexao)
+        {
+            connectionString = conexao;
+        }
+
+        #region INSERT
+
+        public bool Inserir(ModeloIcmsUf modelo)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            string sql = @"
+            INSERT INTO ICMS_UF
+            (
+                COD_ITEM,
+                UF,
+                ICMS
+            )
+            VALUES
+            (
+                @COD_ITEM,
+                @UF,
+                @ICMS
+            )";
+
+            using SqlCommand cmd = new(sql, conn);
+
+            PreencherParametros(cmd, modelo);
+
+            conn.Open();
+
+            return cmd.ExecuteNonQuery() > 0;
+        }
+
+        #endregion
+
+        #region UPDATE
+
+        public bool Alterar(ModeloIcmsUf modelo)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            string sql = @"
+            UPDATE ICMS_UF SET
+                COD_ITEM=@COD_ITEM,
+                UF=@UF,
+                ICMS=@ICMS
+            WHERE ID_ICMS_UF=@ID_ICMS_UF";
+
+            using SqlCommand cmd = new(sql, conn);
+
+            PreencherParametros(cmd, modelo);
+
+            cmd.Parameters.AddWithValue(
+                "@ID_ICMS_UF",
+                modelo.ID_ICMS_UF);
+
+            conn.Open();
+
+            return cmd.ExecuteNonQuery() > 0;
+        }
+
+        #endregion
+
+        #region DELETE
+
+        public bool Excluir(int id)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            using SqlCommand cmd = new(
+                "DELETE FROM ICMS_UF WHERE ID_ICMS_UF=@ID",
+                conn);
+
+            cmd.Parameters.AddWithValue("@ID", id);
+
+            conn.Open();
+
+            return cmd.ExecuteNonQuery() > 0;
+        }
+
+        #endregion
+
+        #region CARREGAR
+
+        public ModeloIcmsUf? Carregar(int id)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            using SqlCommand cmd = new(
+                "SELECT * FROM ICMS_UF WHERE ID_ICMS_UF=@ID",
+                conn);
+
+            cmd.Parameters.AddWithValue("@ID", id);
+
+            conn.Open();
+
+            using SqlDataReader dr = cmd.ExecuteReader();
+
+            if (dr.Read())
+                return PreencherModelo(dr);
+
+            return null;
+        }
+
+        #endregion
+
+        #region CARREGAR POR CÓDIGO
+
+        public ModeloIcmsUf? CarregarPorCodigo(string codigo)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            using SqlCommand cmd = new(
+                "SELECT * FROM ICMS_UF WHERE CODIGO=@CODIGO",
+                conn);
+
+            cmd.Parameters.AddWithValue("@CODIGO", codigo);
+
+            conn.Open();
+
+            using SqlDataReader dr = cmd.ExecuteReader();
+
+            if (dr.Read())
+                return PreencherModelo(dr);
+
+            return null;
+        }
+
+        #endregion
+
+        #region LISTAR
+
+        public List<ModeloIcmsUf> Listar(string? codigo = null,string? codItem = null,string? uf = null)
+        {
+            List<ModeloIcmsUf> lista = [];
+
+            using SqlConnection conn = new(connectionString);
+
+            string sql = @"
+            SELECT *
+            FROM ICMS_UF
+            WHERE 1=1";
+
+            using SqlCommand cmd = new();
+
+            if (!string.IsNullOrWhiteSpace(codigo))
+            {
+                sql += " AND CODIGO LIKE @CODIGO";
+
+                cmd.Parameters.AddWithValue(
+                    "@CODIGO",
+                    "%" + codigo + "%");
+            }
+
+            if (!string.IsNullOrWhiteSpace(codItem))
+            {
+                sql += " AND COD_ITEM=@COD_ITEM";
+
+                cmd.Parameters.AddWithValue(
+                    "@COD_ITEM",
+                    codItem);
+            }
+
+            if (!string.IsNullOrWhiteSpace(uf))
+            {
+                sql += " AND UF=@UF";
+
+                cmd.Parameters.AddWithValue(
+                    "@UF",
+                    uf);
+            }
+
+            sql += " ORDER BY UF";
+
+            cmd.Connection = conn;
+            cmd.CommandText = sql;
+
+            conn.Open();
+
+            using SqlDataReader dr = cmd.ExecuteReader();
+
+            while (dr.Read())
+            {
+                lista.Add(
+                    PreencherModelo(dr));
+            }
+
+            return lista;
+        }
+
+        #endregion
+
+        #region EXISTE
+
+        public bool Existe(string codItem, string uf)
+        {
+            using SqlConnection conn = new(connectionString);
+
+            string sql = @"
+            SELECT COUNT(*)
+            FROM ICMS_UF
+            WHERE COD_ITEM=@COD_ITEM
+            AND UF=@UF";
+
+            using SqlCommand cmd = new(sql, conn);
+
+            cmd.Parameters.AddWithValue("@COD_ITEM", codItem);
+            cmd.Parameters.AddWithValue("@UF", uf);
+
+            conn.Open();
+
+            return Convert.ToInt32(
+                cmd.ExecuteScalar()) > 0;
+        }
+
+        #endregion
+
+        #region QUANTIDADE TOTAL
+
+        public int QuantidadeTotal()
+        {
+            using SqlConnection conn = new(connectionString);
+
+            using SqlCommand cmd = new(
+                "SELECT COUNT(*) FROM ICMS_UF",
+                conn);
+
+            conn.Open();
+
+            return Convert.ToInt32(
+                cmd.ExecuteScalar());
+        }
+
+        #endregion
+
+        #region PREENCHER MODELO
+
+        private ModeloIcmsUf PreencherModelo(SqlDataReader dr)
+        {
+            return new ModeloIcmsUf
+            {
+                ID_ICMS_UF = Convert.ToInt32(dr["ID_ICMS_UF"]),
+                CODIGO = Convert.ToString(dr["CODIGO"]) ?? "",
+                COD_ITEM = Convert.ToString(dr["COD_ITEM"]) ?? "",
+                UF = Convert.ToString(dr["UF"]) ?? "",
+                ICMS = Convert.ToString(dr["ICMS"]) ?? ""
+            };
+        }
+
+        #endregion
+
+        #region PREENCHER PARÂMETROS
+
+        private void PreencherParametros(
+            SqlCommand cmd,
+            ModeloIcmsUf modelo)
+        {
+            cmd.Parameters.AddWithValue(
+                "@COD_ITEM",
+                modelo.COD_ITEM);
+
+            cmd.Parameters.AddWithValue(
+                "@UF",
+                modelo.UF);
+
+            cmd.Parameters.AddWithValue(
+                "@ICMS",
+                modelo.ICMS);
+        }
+
+        #endregion
+    }
+}