namespace WinApp.EF
{
    public partial class Form1 : Form
...

public  class EngGetCalculatedTaskField
    {
        private static TaskMaintenanceDataDataContext engTaskCtx { get; set; }
...

public void LoadById(string SearchItem)
        {
            var myTechnicTasks = engTaskCtx.Tasks.Where(task => task.MyTechnicReference.StartsWith(SearchItem)).Select(task => new MyTask()
...

public static Func<TDbTable, bool> GetWhereClauseForAll<TDbTable, TEntity>(
            this List<TEntity> objects,
            Func<TEntity, Func<TDbTable, bool>> comparison)
...

public void ChangeCommuteItems(int startAtRecord)
        {
            using (DataContext context = new DataContext())
...

public static void Capitalize()
{
    TextInfo oTextInfo = CultureInfo.CurrentCulture.TextInfo;
...