Commit inicial: ITCA_API_SAP_WMS (.NET Core 3.1)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Net.Data/HelperData/Invoices/HelperInvoice.cs

@@ -0,0 +1,34 @@
+using Sap.Data.Hana;
+using System;
+using System.Data;
+
+namespace Net.Data.HelperData.Invoices
+{
+    public class HelperInvoice
+    {
+        public static int Get(string DocNum)
+        {
+            DataTable dt = new DataTable();
+            int DocEntry = 0;
+            using (HanaConnection con = new HanaConnection(LocalData.ConnectionString))
+            {
+                con.Open();
+                HanaCommand cmd = new HanaCommand($"CALL\"{LocalData.Schema}\".\"ITCA_WMS_SAP_GetEntradaPorImportacion\"(?)", con);
+                cmd.Parameters.Add("DocNum", HanaDbType.VarChar).Value = DocNum ?? "";
+                HanaDataAdapter da = new HanaDataAdapter(cmd);
+                if (da != null)
+                {
+                    da.Fill(dt);
+                }
+                con.Close();
+            }
+
+            for (int x = 0; x < dt.Rows.Count; x++)
+            {
+                DocEntry = (dt.Rows[x]["DocEntry"] != DBNull.Value) ? Convert.ToInt32(dt.Rows[x]["DocEntry"]) : 0;
+            }
+
+            return DocEntry;
+        }
+    }
+}