Skip to content

TCollection.DeleteAll

Delete all elements from the collection. Objects are not destroyed.

Declaration

Source position: objects.pp line 445

default 
  procedure DeleteAll;

Description

DeleteAll deletes all elements from the collection. It just sets the Count variable to zero. Contrary to FreeAll , DeletAll doesn't call the destructor of the objects.

Errors

None.

See also

Name Description
TCollection.Delete Delete an item from the collection, but does not destroy it.
TCollection.FreeAll Release all objects from the collection.

Example

Program ex29;
{
 Program to demonstrate the TCollection.DeleteAll method
 Compare with example 28, where FreeAll is used.
}
Uses Objects,MyObject; { For TMyObject definition and registration }
Var C : PCollection;
    M : PMyObject;
    I : Longint;
begin
  Randomize;
  C:=New(PCollection,Init(120,10));
  For I:=1 to 100 do
    begin
    M:=New(PMyObject,Init);
    M^.SetField(I-1);
    C^.Insert(M);
    end;
  Writeln ('Added 100 Items.');
  C^.DeleteAll;
  Writeln ('Deleted all objects.');
  Dispose(C,Done);
end.