How to drag and drop listbox items WPF and SQLite or SQL

Question

Here i created very easy code just for easy way to understand question.

SQLite:
 
     Table = MyTable
 
Fields:

     ID = primary key
     Name = varchar(200)
     current_ID = FLOAT


Wpf  code:

<Grid>
 <ListBox x:Name="listBox" AllowDrop="True"  ItemsSource="{Binding con}"   DisplayMemberPath="Name" Drop="listBoxl_Drop" PreviewMouseLeftButtonDown="listBox_PreviewMouseLeftButtonDown" />
</Grid>


C#  code:

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            listBox.DataContext = Show_Data(); 
        }

        private void listBox_PreviewMouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            ListBox parent = (ListBox)sender;
            listBox = parent;
            object data = GetDataFromListBox(listBox, e.GetPosition(parent));
          
            if (listBox.SelectedIndex >= 0)
            {

                DataRowView row = (DataRowView)listBox.SelectedItem;
                string id = row["current_ID"].ToString();
                var float_db = Return_Float(id);
            }
            if (data != null)
            {
                DragDrop.DoDragDrop(parent, data, DragDropEffects.Move);
            }

        }

        public float fload_db { get; set; }

        public float Return_Float(string id)
        {
            using (SQLiteConnection sqCon = new SQLiteConnection(con_String))
            {
                try
                {
                    string CommandText = "select * from  MyTable Where ID=" + id;
                    SQLiteCommand cmd = new SQLiteCommand(CommandText, sqCon);
                    SQLiteDataAdapter adapter = new SQLiteDataAdapter();

                    sqCon.Open();
                    adapter.SelectCommand = cmd;
                    SQLiteDataReader sdr = cmd.ExecuteReader();
                    fload_db = Convert.ToSingle(sdr["current_ID"].ToString());

                }
                catch { }
                sqCon.Close();
                return fload_db;
            }
        }


        private void listBox_Drop(object sender, DragEventArgs e)
        {
      
         // Here i don't now how to Get target ListBoxItem "current_ID" from SQLite !!!
      
       }

        private static object GetDataFromListBox(ListBox source, Point point)
        {
            UIElement element = source.InputHitTest(point) as UIElement;
            if (element != null)
            {
                object data = DependencyProperty.UnsetValue;
                while (data == DependencyProperty.UnsetValue)
                {
                    data = source.ItemContainerGenerator.ItemFromContainer(element);

                    if (data == DependencyProperty.UnsetValue)
                    {
                        element = VisualTreeHelper.GetParent(element) as UIElement;
                    }

                    if (element == source)
                    {
                        return null;
                    }
                }

                if (data != DependencyProperty.UnsetValue)
                {
                    return data;
                }
            }
            return null;
        }

       public DataSet Show_Data()
        {
            DataSet dtSet = new DataSet();

            using (SQLiteConnection sqCon = new SQLiteConnection(con_String))
            {
                sqCon.Open();
                try
                {

                    string CommandText = "select * from  MyTable order by current_ID";
                    SQLiteCommand cmd = new SQLiteCommand(CommandText, sqCon);
                    SQLiteDataAdapter adapter = new SQLiteDataAdapter();


                    adapter.SelectCommand = cmd;
                    adapter.Fill(dtSet, "con");
                }
                catch
                {

                }
                sqCon.Close();
            }
            return dtSet;
        }



Thanks!