Custom Parameter cannot be internalised

I have made a custom object that includes geometric (BRep) and numerical data:

public Brep a { get; set; }
public List<Brep> b { get; set; }
public String c { get; set; }
public double d { get; set; }
public double e { get; set; }
public double f { get; set; }

The problem is that this parameter cannot be internalised. When I right-click it, it doesn't have the option to internalise the data.

Any idea how I could add this feature to this parameter?

Replies to This Discussion

Permalink Reply by David Rutten on December 19, 2013 at 8:40am

You need to inherit from GH_PersistentParam instead of GH_Param. But you also have to make sure your custom Goo is fully (de)serializable.

David Rutten

david@mcneel.com

Permalink Reply by Alex Christodoulou on December 19, 2013 at 9:01am

Thanks David for your fast reply!

I changed the inheritance to:

public class Custom_Param : GH_PersistentParam<Custom_Data>

and this gave this error:

'Custom.GH_Parameters.Custom_Param' does not implement inherited abstract member 'Grasshopper.Kernel.GH_PersistentParamstrong>Custom.GH_Parameters.Custom_Data>.Prompt_Singular(ref Custom.GH_Parameters.Custom_Data)'

Permalink Reply by David Rutten on December 19, 2013 at 11:31am

Well, you'll need to implement all the abstract method of the base class. If your data does not allow for selecting or user-specification then just return false in those methods.

David Rutten

david@mcneel.com

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