# Custom component. Doesn't show on basic tap
**URL:** https://forum.castle-engine.io/t/custom-component-doesnt-show-on-basic-tap/2141
**Category:** Uncategorized
**Created:** [April 11, 2026, 8:19pm UTC](https://forum.castle-engine.io/t/custom-component-doesnt-show-on-basic-tap/2141 "2026-04-11T20:19:16Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@BlueIcaro](https://forum.castle-engine.io/u/BlueIcaro)
#### Post date: [April 11, 2026, 8:19pm UTC](https://forum.castle-engine.io/t/custom-component-doesnt-show-on-basic-tap/2141/1 "2026-04-11T20:19:16Z")
Hello, I making a Custom Component, but the properties doesnt show in basic tap.
I got this:
public
const
DefaultDistancia = 50;
property Direccion: TVector3 read Fdireccion write Setdireccion;
property Velocidad: TVector3 read Fvelocidad write Setvelocidad;
published
property Distancia: single read FDistancia write SetDistancia default
DefaultDistancia;
property DireccionPersistent: TCastleVector3Persistent read FDireccionPersistent;
property VelocidadPersistent: TCastleVector3Persistent read FVelocidadPersistent;
if ArrayContainsString(PropertyName, [‘VelocidadPersistent,DireccionPersistent’]) then
begin
Result := [psBasic];
end
else
begin
Result := inherited PropertySections(PropertyName);
// Result := [psBasic];
end;
If I “force” resutl to psbasic the propierties are show in tap. So the problem is that are not found in the array. But I don’t know why
/BlueIcaro
---
### Author:  [@michalis](https://forum.castle-engine.io/u/michalis)
#### Post date: [April 11, 2026, 9:08pm UTC](https://forum.castle-engine.io/t/custom-component-doesnt-show-on-basic-tap/2141/2 "2026-04-11T21:08:12Z")
Hm, I don’t see any obvious error in the code you show. Checking `if ArrayContainsString(PropertyName, [...` follows the pattern we use throughout CGE , and our properties show in “Basic” tab OK.
You need to show a bigger piece of code (preferably a complete testcase, i.e. code that we can compile and test) to allow us to debug it.
Note: You can also debug more on your side
- e.g. from Lazarus IDE (CGE editor is a regular LCL application, you can set a breakpoint e.g. the beginning of your `PropertySections` method).
- adding `WritelnLog`. E.g.
```delphi
WritelnLog('Checking property %s, which seems to be in array? %s', [
PropertyName,
BoolToStr(ArrayContainsString(PropertyName, [‘VelocidadPersistent,DireccionPersistent’]), true)
]);
```
The editor makes a regular log file, you can find it following docs [Logging | Manual | Castle Game Engine](https://castle-engine.io/log) (the application name of editor is `castle-editor`). So if you add above `WritelnLog` inside your `PropertySections`, make a test, and later look at log → you should see something that helps 🙂
---
### Author:  [@BlueIcaro](https://forum.castle-engine.io/u/BlueIcaro)
#### Post date: [April 12, 2026, 8:39am UTC](https://forum.castle-engine.io/t/custom-component-doesnt-show-on-basic-tap/2141/3 "2026-04-12T08:39:13Z")
Hello, here is the complete project.
> **[GhostAndGoblins\_CGE-/Capitulo 8 at main · Blueicaro/GhostAndGoblins\_CGE-](https://github.com/Blueicaro/GhostAndGoblins_CGE-/tree/main/Capitulo%208)**
>
> Contribute to Blueicaro/GhostAndGoblins\_CGE- development by creating an account on GitHub.
Thanks
/BlueIcaro
---
### Author:  [@michalis](https://forum.castle-engine.io/u/michalis)
#### Post date: [April 12, 2026, 10:05pm UTC](https://forum.castle-engine.io/t/custom-component-doesnt-show-on-basic-tap/2141/4 "2026-04-12T22:05:29Z")
Thank you!
Looking at GitHub code listing, with proper syntax highlighting (colored Pascal string), I can see the issue at [GhostAndGoblins\_CGE-/Capitulo 8/code/enemigos/gamezombiesbehavior.pas at c4489ea1c33b3b6f9561ac1190e50536592b180d · Blueicaro/GhostAndGoblins\_CGE- · GitHub](https://github.com/Blueicaro/GhostAndGoblins_CGE-/blob/c4489ea1c33b3b6f9561ac1190e50536592b180d/Capitulo%208/code/enemigos/gamezombiesbehavior.pas#L281) (which was also in your post above, I just didn’t see it):
You placed the comma inside a string in the condition:
```delphi
if ArrayContainsString(PropertyName, [‘VelocidadPersistent,DireccionPersistent’]) then
```
That is, you’re _not_ comparing `PropertyName` with 2 possible strings, one `VelocidadPersistent`, other `DireccionPersistent`. You are comparing it with 1 string (containing a comma inside, so it will never match a Pascal identifier) `VelocidadPersistent,DireccionPersistent`.
Simply adding apostrophes should make it valid:
```delphi
if ArrayContainsString(PropertyName, [‘VelocidadPersistent','DireccionPersistent’]) then
```
Please note that in the end, I didn’t test above solution – I’m writing this basing on looking at the code. If some problem in this case remains, please let me know.
---
### Author:  [@BlueIcaro](https://forum.castle-engine.io/u/BlueIcaro)
#### Post date: [April 13, 2026, 7:24am UTC](https://forum.castle-engine.io/t/custom-component-doesnt-show-on-basic-tap/2141/5 "2026-04-13T07:24:13Z")
Hello, Thank you!
/BlueIcaro
P.D. ups! 😅 Note to self: Sleep more and program less at night