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Declaring variables at runtim
Is it possible to declare a variable at runtime ?
I want something like this :
procedure TForm1.SomeProc(Validated : Boolean);
begin
if Validated then
begin
strList : TStringList;
strList.Create(nil);
// Do some stuff...
strList.Free;
end;
end;
I want something like this :
procedure TForm1.SomeProc(Validated : Boolean);
begin
if Validated then
begin
strList : TStringList;
strList.Create(nil);
// Do some stuff...
strList.Free;
end;
end;
Asked:
5-
2
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2
- +3
1 Solution
not possible,
except you've an inbuild-compiler
but why you want this,
why not easy
procedure TForm1.SomeProc(Validated : Boolean);
var strList : TStringList;
begin
if Validated then
begin
strList.Create(nil);
// Do some stuff...
strList.Free;
end;
end;
as you have to code the logic also
meikl ;-)
except you've an inbuild-compiler
but why you want this,
why not easy
procedure TForm1.SomeProc(Validated : Boolean);
var strList : TStringList;
begin
if Validated then
begin
strList.Create(nil);
// Do some stuff...
strList.Free;
end;
end;
as you have to code the logic also
meikl ;-)
procedure TForm1.SomeProc(Validated : Boolean);
begin
if Validated then
begin
with TStringList.Create(nil) do
begin
// Do some stuff...
Free;
end;
end;
end;
begin
if Validated then
begin
with TStringList.Create(nil) do
begin
// Do some stuff...
Free;
end;
end;
end;
kretschmar, lucika: TStringList.Create not TStringList.Create(nil). TStringList is no component.
Shame on you ;-)
Shame on you ;-)
Shame on What?
1. inthe: 504306 pts
2. Madshi: 471558 pts
3. kretzschmar: 422246 pts
Best Regards.
Marcos.
1. inthe: 504306 pts
2. Madshi: 471558 pts
3. kretzschmar: 422246 pts
Best Regards.
Marcos.
atleast, robert is right,
the creator of the tstringlist has no parameter,
but i've just copied the given code
shame on me :-))
meikl ;-)
the creator of the tstringlist has no parameter,
but i've just copied the given code
shame on me :-))
meikl ;-)
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Only a interpreted language can do that.
The above example does not need it.
strList is only a pointer. The object it points to IS created at runtime.