LifetimeInformation.HasBeenDeleted Property

Gets a value indicating whether whether an object has been deleted but not yet discarded by the garbage collector.

Namespace:  EnvDTE80
Assembly:  EnvDTE80 (in EnvDTE80.dll)

Syntax

'Declaration
ReadOnly Property HasBeenDeleted As Boolean

bool HasBeenDeleted { get; }

property bool HasBeenDeleted {
    bool get ();
}

abstract HasBeenDeleted : bool

function get HasBeenDeleted () : boolean

Property Value

Type: System.Boolean
true if the object behind it has been deleted; otherwise, false.

Remarks

This property is used to signify that you have a reference to an object that is no longer valid and any calls to the object should fail.

Examples

Sub TaskItemObjectLifetime(ByVal DTE As DTE2)
    Dim tskItem As TaskItem
    Dim tskItems As EnvDTE.TaskItems
    Dim lifetimeInfo As LifetimeInformation

    tskItems = DTE.ToolWindows.TaskList.TaskItems
    tskItem = tskItems.Add("Category", "SubCategory", "Description", _
      vsTaskPriority.vsTaskPriorityLow, EnvDTE.vsTaskIcon. _
      vsTaskIconUser, True, "", -1, True, True)
    tskItems.ForceItemsToTaskList()
    lifetimeInfo = tskItem
    MsgBox("Has task item been deleted? " & _
      lifetimeInfo.HasBeenDeleted.ToString)
    tskItem.Delete()
    MsgBox("Has task item been deleted? " & _
      lifetimeInfo.HasBeenDeleted.ToString)
End Sub

public void TaskItemObjectLifetime(DTE2 DTE)
{
    TaskItem tskItem;
    EnvDTE.TaskItems tskItems;
    LifetimeInformation lifetimeInfo;

    tskItems = DTE.ToolWindows.TaskList.TaskItems;
    tskItem = tskItems.Add("Category", "SubCategory", "Description", 
      vsTaskPriority.vsTaskPriorityLow, 
      EnvDTE.vsTaskIcon.vsTaskIconUser, true, "", -1, true, true);
    tskItems.ForceItemsToTaskList();
    lifetimeInfo = (LifetimeInformation)tskItem;
    MessageBox.Show("Has task item been deleted? " + 
      lifetimeInfo.HasBeenDeleted);
    tskItem.Delete();
    MessageBox.Show("Has task item been deleted? " +  
      lifetimeInfo.HasBeenDeleted);
}

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

LifetimeInformation Interface

EnvDTE80 Namespace

Other Resources

How to: Compile and Run the Automation Object Model Code Examples