how to use the same object in each button ?

[Anonymous]

Hello.

In the code below I create two buttons. I wanted to use the same object that I could update and use to setup data in each button. But I hit the wall. If I try to use object already created in my struct, inside button Event, I get:

Runtime error: Struct member access requires instance: _dataContainer <<

with this code:

struct MyContainer
(
    public
    lockView = true
)

struct TestUI
(
    private
    text = "hello",
    _dataContainer = MyContainer(),
 
    public
    fn Create = 
    (
        rollout MainWindow "Test"
        (
            button GI_btn @" GI " width:100 _height:30 pos:
            button Farm_btn @" FARM " width:100 height:30 pos:
 
            /* EVENTS ---------------------------------------- */
            on GI_btn pressed do
            (
                _dataContainer.lockView = true
            )
 
            on Farm_btn pressed do
            (
                messagebox (_dataContainer.lockView as string)
            )
        )

        createDialog MainWindow 200 200
    )
)
_ui = TestUI()
_ui.Create()

Now if I modify the code:

struct MyContainer
(
    public
    lockView = true
)

struct TestUI
(
    private
    text = "hello",
 
    public
    fn Create _dataContainer = 
    (
        rollout MainWindow "Test"
        (
            button GI_btn @" GI " width:100 _height:30 pos:
            button Farm_btn @" FARM " width:100 height:30 pos:
 
            /* EVENTS ---------------------------------------- */
            on GI_btn pressed do
            (
                _dataContainer.lockView = true
            )
 
            on Farm_btn pressed do
            (
                messagebox (_dataContainer.lockView as string)
            )
        )

        createDialog MainWindow 200 200
    )
)
_my = MyContainer()
_ui = TestUI()
_ui.Create _my

and try to pass data thru function and then use them in button events, i get:

Compile error: No outer local variable references permitted here: _dataContainer

So, how to correctly pass the same object into each button so I could work with the same data in each ?

[Steve_Curley]

The order in which you define things in Rollout code is important. See:-
Visibility of Locals, Functions, Structures and User-Interface Items in Rollout Code
in the Maxscript Help.

[Anonymous]

I can modify code like this:

struct MyContainer
(
     public
     lockView = true
)

struct TestUI
(
     private
     text = "hello",
  
     public
     fn Create = 
     (
         rollout MainWindow "Test"
         (
             local _dataContainer = MyContainer()
             button GI_btn @" GI " width:100 _height:30 pos:
             button Farm_btn @" FARM " width:100 height:30 pos:
  
             /* EVENTS ---------------------------------------- */
             on GI_btn pressed do
             (
                 _dataContainer.lockView = true
             )
  
             on Farm_btn pressed do
             (
                 messagebox (_dataContainer.lockView as string)
             )
         )

         createDialog MainWindow 200 200
     )
 )
_ui = TestUI()
_ui.Create()

and it will work perfectly.

Now lets create different setup:

struct MyContainer
(
    public
    lockView = true
)

struct TestUI
(
    private
    text = "hello",
    _data = MyContainer(),
    _buttonsRollout,
    _buttonsRolloutName = "Buttons",
    _optionsRollout,
    _optionsRolloutName = "Options",


    public
    fn Create = 
    (
        rollout _buttonsRollout _buttonsRolloutName
        (
            /* UI elements ---------------------------------------- */
            button GI_btn @" GI " width:60 height:30 pos:
            button Farm_btn @" FARM " width:60 height:30 pos:
 
            /* EVENTS ---------------------------------------- */
            on GI_btn pressed do
            (
                messagebox (_data.lockView as string)
            )
 
            on Farm_btn pressed do
            (
                messagebox (_data.lockView as string)
            )
        )
        rollout _optionsRollout _optionsRolloutName
        (
            /* UI elements ---------------------------------------- */
            button GI_btn @" GI " width:60 height:30 pos:
            button Farm_btn @" FARM " width:60 height:30 pos:
 
            /* EVENTS ---------------------------------------- */
            on GI_btn pressed do
            (
                messagebox (_data.lockView as string)
            )
 
            on Farm_btn pressed do
            (
                messagebox (_data.lockView as string)
            )
        )

        MainWindow = newRolloutFloater "Bake Utils" 200 200
        addRollout _buttonsRollout MainWindow
        addRollout _optionsRollout MainWindow
    )
)
_ui = TestUI()
_ui.Create()

Now I would like to acces the same data not only in buttons but also in both rollouts.
In this example adding "local _dataContainer = MyContainer()" to first rollout will not help. If I define MyContainer as global it will work , but I don't want to do this. After reading part of documentation you mentioned I still don't get this. If rollout can use private variable from struct as its name, why it can't use variable in button event ?

Do you have any code example ?

[Anonymous]

Solution for the problem link