B4J Question Control Id

[Daestrum]

Where in the internal designer can I set the Id for the control ?

 

[Ed Brown]

Hello @Daestrum

I think you might be referring to the 'Name' property in the section 'Main'. This is where I set the ID of the controls that I use in code. If it's the same thing that you're after then don't forget to add Generate Members from the Tools menu. Before you do, make sure that you have selected the code module in the IDE where you want the references added.

 

[Daestrum]

Thanks for the reply, but it's the Id I need not the name. At present ???.Id will always return null for any control.

 

[Erel]

You cannot set the id. It is not used by the internal designer.

Set the name and then generate members. If you need to attach another value to the control then set the Tag property.

 

[Daestrum]

Ok, thanks Erel, will need to find another way to set the Id. All controls have an Id but not all have Tags

 

[Erel]

All nodes have a Tag property.

 

[Daestrum]

Sorry maybe my previous reply was misleading, I need the id field for things like MenuItem which do not have a tag (according to the api they don't even inherit one).
It's not a massive problem as I can run through the scene and add the Id based on the name.
Ty for the reply

 

[Erel]

MenuItems do have a Tag property (which is very important for MenuItems): https://www.b4x.com/android/forum/threads/designer-menu-items.56602/

 

[Daestrum]

I assume that the 'tag' field is the userdata field is that correct ?
The reason I asked about the Id is, without using the Id and using an external css file, how do you style a single control ?

 

[Erel]

I assume that the 'tag' field is the userdata field is that correct ?

Yes.

The reason I asked about the Id is, without using the Id and using an external css file, how do you style a single control ?

Simple changes can be done in the designer directly or with the Extra CSS property.

If you need to set an id then you can do it in your code. You can also do something like:

For Each n As Node In MainForm.RootPane.GetAllViewsRecursive
     n.Id = n.Tag
 Next

 

[Daestrum]

Thank you, gets me closer to what I am trying to achieve.