How to save the custom data in .3dm file C# Rhino 7

[zz1 (zz)]

hi，Do you have any examples of how to save the custom data(such as data‘s type is string) in .3dm file

[Mahdiyar]

SetString in C#

using System; using Rhino; var doc = RhinoDoc.ActiveDoc; var key = "test"; var value = "Hello Rhino!"; doc.Strings.SetString(key, value); Console.WriteLine(doc.Strings.GetValue(key));

[zz1 (zz)]

this is helpful,thank you