如何強制處理對象/ GC

如何強制對象在使用後進行處理以釋放內存？而且，你如何強制GC收集？如何強制處理對象/ GC

這是我的保存代碼。我注意到，每次執行這個函數時，我的內存消耗都會增加，最終會在幾次命中後導致內存不足錯誤。

protected void btnSaveEmptyOC_Click(object sender, EventArgs e) 
{ 


    try 
    { 

     if (ViewState["ServiceDetailID"].ToString() != null) 
     { 
      CashExpense tblCashExpenses = new CashExpense(); 
      Guid CashExpensesID = Guid.NewGuid(); 

      tblCashExpenses.CashExpensesID = CashExpensesID; 


      tblCashExpenses.ServiceDetailsID = new Guid(ViewState["ServiceDetailID"].ToString()); 

      tblCashExpenses.Description = txtDescriptionEmptyOC.Text; 
      tblCashExpenses.Quantity = Decimal.Parse(txtQTYEmptyOC.Text); 
      tblCashExpenses.UnitCost = Decimal.Parse(txtUnitCostEmptyOC.Text); 
      tblCashExpenses.CreatedBy = User.Identity.Name; 
      tblCashExpenses.DateCreated = DateTime.Now; 
      tblCashExpenses.CashExpensesTypeID = "OTHER"; 

      CashExpenses_worker.insert(tblCashExpenses); 
      CashExpenses_worker.submit(); 
      //Clear items after saving 
      txtDescriptionEmptyOC.Text = ""; 
      txtQTYEmptyOC.Text = ""; 
      txtUnitCostEmptyOC.Text = ""; 


      ValidationMessage.ShowValidationMessage(MessageCenter.CashExpenseMaintenace.InsertOC2, "SaveEmptyOC", this.Page); 
      MyAuditProvider.Insert(this.GetType().ToString(), ViewState["MarginAnalysisID"].ToString(), MessageCenter.Mode.ADD, MessageCenter.CashExpenseMaintenace.InsertOC2, Page.Request, User); 
      divOtherCost.Visible = false; 
      grd_othercost.Visible = true; 
      btnaddothercost.Visible = true; 

      tblCashExpenses = null; 
     } 
     else 
     { 
      ValidationMessage.ShowValidationMessage(MessageCenter.CashExpenseMaintenace.SaveServiceDetailOC, "SaveEmptyOC", this.Page); 
     } 
    } 
    catch 
    { 
     ValidationMessage.ShowValidationMessage(MessageCenter.CashExpenseMaintenace.InsertOCError, "SaveEmptyOC", this.Page); 
    } 

    finally 
    { 
     //Rebinds the Grid 
     populategrd_othercost(); 
     Dispose(); 
     GC.SuppressFinalize(this); 
    } 
}

這裏是我的業務層類

public class CashExpensesBL 
{ 
    CEADataStoreDataContext CashExpensesDB = new CEADataStoreDataContext(); 

    public IEnumerable<CashExpense> get() 
    { 
     return CashExpensesDB.CashExpenses; 
    } 
    public IEnumerable<CashExpense> get(Expression<Func<CashExpense, Boolean>> express) 
    { 
     return CashExpensesDB.CashExpenses.Where(express); 
    } 
    public void insert(CashExpense item) 
    { 
     CashExpensesDB.CashExpenses.InsertOnSubmit(item); 
    } 
    public void delete(CashExpense item) 
    { 
     CashExpensesDB.CashExpenses.DeleteOnSubmit(item); 
    } 
    public void deleteDC(Guid servicedetailid) 
    { 
     CashExpensesDB.sp_deleteDefaultCost(servicedetailid); 
    } 
    public void submit() 
    { 
     CashExpensesDB.SubmitChanges(); 
    } 
}

來源

2012-01-09 anonymous1110

你應該處理您的DataContext。我看不到它在任何地方被移除，因此連接將保持打開狀態，並且可能會引用參考（阻止GC拾取它們）。這可能是導致問題的原因。如果您不想手動處理，則可以在using區塊內執行交易。

編輯迴應業務層更新 -

你可以用在using塊的方法是這樣的：

public void insert(CashExpense item) 
{  
    using(CEADataStoreDataContext CashExpensesDB = new CEADataStoreDataContext()) 
    { 
     CashExpensesDB.CashExpenses.InsertOnSubmit(item); 
     CashExpensesDB.SubmitChanges(); 
    } 
}

來源

2012-01-09 02:37:57 keyboardP

嗨，我該如何處理datacontext？我在業務層上有一個單獨的課程。在短時間內添加它.. – anonymous1110 2012-01-09 02:45:12

您可以簡單地調用'datacontext.Dispose'方法 - http://msdn.microsoft.com/en-us/library/system.data.linq.datacontext.dispose.aspx – keyboardP 2012-01-09 02:48:09

hi ，我已經添加了我的業務層類。請看看它謝謝。 – anonymous1110 2012-01-09 02:49:28

分配空變量引用你的對象，使用GC.Collect();強制垃圾收集。您可能需要連續調用兩次以加速整個過程中的不可訪問對象。

來源

2012-01-09 02:38:12 dasblinkenlight

tblCashExpenses = null;然後添加GC.COllect（）2x？在我的嘗試塊？ – anonymous1110 2012-01-09 02:43:25

@ anonymous1110是的，看看這是否有幫助。 – dasblinkenlight 2012-01-09 02:54:55

-1

設置對象爲空，則調用：

GC.Collect的（）; GC.WaitForPendingFinalizers（）;

來源

2013-09-21 00:01:58

這不起作用，因爲一個GC.Collect（）調用只是將對象移動到下一代。沒有辦法，保證GC.Collect（）甚至可以做一些事情.. – 2017-11-23 09:07:59

如何強制處理對象/ GC

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