Watching TStringList - Lazarus 3.0 (FpDebug)

[Martin_fr]

Well, sorry, but no, properties still don't work....

But, now there is a way to see the contents of your StringList. (Using FpDebug and Dwarf-3 / other Dwarf versions should work too)

Code: Pascal  [Select][+][-]

1. program Project1;
2. uses Classes;
3. var
4.   MyList: TStringList;
5. begin
6.   MyList := TStringList.Create;
7.   MyList.Add('abc');
8.   MyList.Add('123');
9.   MyList.Add('Foo'+LineEnding+'Bar');
10.   MyList.Add('whatever');
11. end.

In the watches window (or debug-inspect / evaluate) add this:

Code: Text  [Select][+][-]

1. MyList.FList^[0..3].FString

And see the image for the result.

https://wiki.freepascal.org/FpDebug-Watches-Intrinsic-Functions#Array_slice_MyArray.5Bn..m.5D_with_mapping

[andresayang]

Hello,

I've try even with your "trick" doesn't seems to works.

Cheers

[JuhaManninen]

I've try even with your "trick" doesn't seems to works.

I tested with Lazarus trunk (main branch) and with fixes_3_0. It works here!
However I don't know what the arrow buttons are supposed to do. Clicking them makes no difference.
The "+" and "-" buttons change the number in between them, but what is its purpose? The range is already given by a user.

Anyways a nice feature.

[andresayang]

I've try even with your "trick" doesn't seems to works.

I tested with Lazarus trunk (main branch) and with fixes_3_0. It works here!
However I don't know what the arrow buttons are supposed to do. Clicking them makes no difference.
The "+" and "-" buttons change the number in between them, but what is its purpose? The range is already given by a user.

Anyways a nice feature.

Thanks,

So I'll try to install "RC2" to check.

Cheers

[Martin_fr]

However I don't know what the arrow buttons are supposed to do. Clicking them makes no difference.
The "+" and "-" buttons change the number in between them, but what is its purpose? The range is already given by a user.

They are for any array, but only do something if there are more than 10 entries.
 
Then you see a page of 10, and can go through the pages.

The +/- change the size of the page.

https://wiki.freepascal.org/IDE_Window:_Watch_list#Viewing.2FExpanding_Arrays

[JuhaManninen]

They are for any array, but only do something if there are more than 10 entries.
Then you see a page of 10, and can go through the pages.
The +/- change the size of the page.
https://wiki.freepascal.org/IDE_Window:_Watch_list#Viewing.2FExpanding_Arrays

OK, sounds like a useful feature for some advanced debugging situations. I must test it further at some point.

[andresayang]

Hi all,

3.0 RC2 (that I manage to install, using "first build as root trick)

I got it, thanks a lots for this wonderfull feature.

Cheers