public static ProfitFormulaDBHelper GetInstance() { if (_Instance == null) { lock (typeof(ProfitFormulaDBHelper)) { if (_Instance == null) { _Instance = new ProfitFormulaDBHelper(); } } } return(_Instance); }
public static ProfitFormulaDBHelper GetInstance() { if (_Instance == null) { lock (typeof(ProfitFormulaDBHelper)) { if (_Instance == null) { _Instance = new ProfitFormulaDBHelper(); } } } return _Instance; }