[gme-users] Setting MgaMetaAttribute.Viewable field programatically

[Kevin Smyth]

Cinthya,

GME does not support modifying the metamodel at runtime.
MgaMetaAttribute.Viewable can be set in the MetaGME model by the "Viewable"
attribute on FieldAttribute.

Kevin

On Fri, Nov 16, 2018 at 4:10 PM Cinthya Lopez <Cinthya_K_Lopez at raytheon.com>
wrote:

> Hi,
>
>
>
> I am trying to set MgaAttribute.Meta.Viewable = false within my Add-On.
> The viewable field in my metamodel for this attribute is set to True, but I
> want to be able to hide the attribute depending on where the user is
> creating this object within their model.
>
>
>
> I am currently getting a GME error when this line is executed saying
> “Unable to insert object: No active transaction.” I have  been playing
> around with beginning a transaction before executing this line by using
> both MgaProject. BeginTransactionInNewTerr() and
> MgaProject.BeginTransaction(territory) but still get the same error or I
> also get an error along the lines of a transaction already exists. Can the
> Viewable field for an MgaMetaAttribute be set programmatically? If so, what
> is the correct way of dealing with transactions when executing this from an
> Add-On’s ObjectEvent() function?
>
>
>
> Thanks,
>
> Cinthya
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