TCollection.At
Return the item at a certain index.
Declaration
Source position: objects.pp line 438
default
function At(Index: Sw_Integer) : Pointer;
Description
At returns the item at position Index.
Errors
If Index is less than zero or larger than the number of items in the collection, seepl{Error}{TCollection.Error} is called with coIndexError and Index as arguments, resulting in a run-time error.
See also
Name | Description |
---|---|
TCollection.Insert | Insert a new item in the collection at the end. |
Example
Program ex23;
{ Program to demonstrate the TCollection.At method }
Uses Objects,MyObject; { For TMyObject definition and registration }
Var C : PCollection;
M : PMyObject;
I : Longint;
begin
C:=New(PCollection,Init(100,10));
For I:=1 to 100 do
begin
M:=New(PMyObject,Init);
M^.SetField(100-I);
C^.Insert(M);
end;
For I:=0 to C^.Count-1 do
begin
M:=C^.At(I);
Writeln ('Object ',i,' has field : ',M^.GetField);
end;
C^.FreeAll;
Dispose(C,Done);
end.