private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                SqlConnection Conn = new SqlConnection(comSTR);
                Conn.Open();
          
                XmlTextWriter textWritter = new XmlTextWriter(pathToXml, Encoding.UTF8);
                textWritter.WriteStartDocument();
                SqlCommand Command = Conn.CreateCommand();
                // получить список таблиц по которым установлено соответсвие
                CommandText = "Select distinct table_source,table_receiver from Iintegration";
                SqlDataAdapter dataAdapter_Integration_Table = new SqlDataAdapter(CommandText, ConnetionString);
                DataSet ds_Integration_Table = new DataSet();
                DataTable table_Integration_Table = new DataTable();
                dataAdapter_Integration_Table.Fill(table_Integration_Table);
               
                for (int i = 0; i < table_Integration_Table.Rows.Count; i++)
                {
                 
                          textWritter.WriteStartElement(table_Integration_Table.Rows[i]["table_receiver"].ToString());
                          textWritter.WriteEndElement();
                          textWritter.Close();
                          XmlDocument document = new XmlDocument();
                          document.Load(pathToXml);
                
                       
                           CommandText = @"select source,receiver from Iintegration where table_source='"+table_Integration_Table.Rows[i]["table_source"].ToString()+"'";
                           SqlDataAdapter dataAdapter_Details = new SqlDataAdapter(CommandText, ConnetionString);
                           DataSet ds_Details = new DataSet();
                           DataTable   table_Details = new DataTable();
                           dataAdapter_Details.Fill(table_Details);
                           string str="";          
                            for (int j = 0; j <  table_Details.Rows.Count; j++)
                             {
                                 if (j == table_Details.Rows.Count - 1)
                                 { str += table_Details.Rows[j]["source"].ToString() + " "; }
                                 else
                                 { str += table_Details.Rows[j]["source"].ToString() + " ,"; }
                             }
                        
                           CommandText = @"select "+str +"from "+table_Integration_Table.Rows[i]["table_source"].ToString();
                           SqlDataAdapter dataAdapter_Info = new SqlDataAdapter(CommandText, ConnetionString);
                           DataSet ds_Info = new DataSet();
                           DataTable   table_Info = new DataTable();
                           dataAdapter_Info.Fill(table_Info );
                             
                           
                            for (int k = 0; k <  table_Info .Rows.Count; k++)
                             {
                                 XmlNode element = document.CreateElement("Item");
                                 document.DocumentElement.AppendChild(element);
                                 XmlAttribute attribute = document.CreateAttribute("Number");
                                 attribute.Value = (i + 1).ToString();
                                 element.Attributes.Append(attribute);
                                 for (int j = 0; j < table_Details.Rows.Count; j++)
                                 {
                                     //название поля
                                     XmlNode subElement_id = document.CreateElement(table_Details.Rows[j]["receiver"].ToString()); 
                                     //значение поля
                                     subElement_id.InnerText = table_Info.Rows[k][table_Details.Rows[j]["source"].ToString()].ToString();
                                     
                                     element.AppendChild(subElement_id);
                                 }
                               
                             } 
                           
                            
                        document.Save(pathToXml);
                    
                }
            
                
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

 for (int i = 0; i < table_Integration_Table.Rows.Count; i++)