Zero touch - multi return. Unexpected input

Developers
1

Hi,

I’m trying to create a zero touch node that outputs multiple revision settings. However, I’m getting two separate nodes one with revision settings and other with all the properties

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I’m not sure why they are separate?

Here’s my code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Autodesk.Revit.DB;
using Autodesk.Revit.ApplicationServices;
using Autodesk.DesignScript.Runtime;
using RevitServices.Persistence;
using RevitServices.Transactions;
using Revit.Elements;



namespace Revit
{
    public class Revisions
    {

        public static Document doc = DocumentManager.Instance.CurrentDBDocument;
        Double Spacing = RevisionSettings.GetRevisionSettings(doc).RevisionCloudSpacing * 304.8;
        RevisionNumbering Numbering = RevisionSettings.GetRevisionSettings(doc).RevisionNumbering;
        IList<string> revSequence = RevisionSettings.GetRevisionSettings(doc).GetAlphanumericRevisionSettings().GetSequence();
        int revStartNo = RevisionSettings.GetRevisionSettings(doc).GetNumericRevisionSettings().StartNumber;
        string revAlphaPrefix = RevisionSettings.GetRevisionSettings(doc).GetAlphanumericRevisionSettings().Prefix;
        string revAlphaSuffix = RevisionSettings.GetRevisionSettings(doc).GetAlphanumericRevisionSettings().Suffix;
        string revNumPrefix = RevisionSettings.GetRevisionSettings(doc).GetNumericRevisionSettings().Prefix;
        string revNumSuffix = RevisionSettings.GetRevisionSettings(doc).GetNumericRevisionSettings().Suffix;

        [MultiReturn(new[] { "Spacing", "Numbering", "revSequence", "revStartNo", "revAlphaPrefix", "revAlphaSuffix", "revNumPrefix", "revNumSuffix" })]
        public Dictionary<string, object> DocumentRevisions() => new Dictionary<string, object>
                {
                    { "Spacing",Spacing },
                    { "Numbering",Numbering},
                    { "revSequence",revSequence},
                    { "revStartNo",revStartNo},
                    {"revAlphaPrefix",revAlphaPrefix},
                    {"revAlphaSuffix",revAlphaSuffix},
                    {"revNumPrefix",revNumPrefix},
                    {"revNumSuffix",revNumSuffix}
                };


    }
    
}
2

You need to make your method static so it doesn’t require and instance of your Revisions class. The unexpected node is there becuase every class in C has a constructor, hence you see it in the library (Create nodes = constructors). To prevent this, declare your own default constructor and set its access level to private; this will prevent it from importing (and therefore appearing in the library as a node).

All of the above is explained in the document I linked here, plus it will resolve your other issues too:

5 Likes
3

Thanks, I’ll try that.
Thank you for sharing the link

4

Another good reference here.