Create new project parameter from dynamo

Developers
,
1 
#Copyright(c) 2015, Konrad Sobon
# @arch_laboratory, http://archi-lab.net

import clr
clr.AddReference(‘ProtoGeometry’)
from Autodesk.DesignScript.Geometry import *

# Import DocumentManager and TransactionManager
clr.AddReference(“RevitServices”)
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

# Import RevitAPI
clr.AddReference(“RevitAPI”)
import Autodesk
from Autodesk.Revit.DB import *

doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application

from System.Collections.Generic import *

# Import ToDSType(bool) extension method
clr.AddReference(“RevitNodes”)
import Revit
clr.ImportExtensions(Revit.Elements)
import System
#The inputs to this node will be stored as a list in the IN variable.
dataEnteringNode = IN

_paramName = IN[0]
_groupName = IN[1]
_paramType = IN[2]
_visible = IN[3]
_category = IN[4]
_paramGroup = IN[5]
_instance = IN[6]

def ParamBindingExists(_doc, _paramName, _paramType):
map = doc.ParameterBindings
iterator = map.ForwardIterator()
iterator.Reset()
while iterator.MoveNext():
if iterator.Key != None and iterator.Key.Name == _paramName and iterator.Key.ParameterType == _paramType:
paramExists = True
break
else:
paramExists = False
return paramExists

def RemoveParamBinding(_doc, _paramName, _paramType):
map = doc.ParameterBindings
iterator = map.ForwardIterator()
iterator.Reset()
while iterator.MoveNext():
if iterator.Key != None and iterator.Key.Name == _paramName and iterator.Key.ParameterType == _paramType:
definition = iterator.Key
break
message = None
if definition != None:
map.Remove(definition)
message = “Success”
return message

#”Start” the transaction
TransactionManager.Instance.EnsureInTransaction(doc)

message = None

if ParamBindingExists(doc, _paramName, _paramType):
if not RemoveParamBinding(doc, _paramName, _paramType) == “Success”:
message = “Param Binding Not Removed Successfully”
else:
message = None

try:
file = app.OpenSharedParameterFile()
except:
message = “No Shared Parameter file found.”
pass

group = file.Groups.get_Item(_groupName)
if group == None:
group = file.Groups.Create(_groupName)

if group.Definitions.Contains(group.Definitions.Item[_paramName]):
_def = group.Definitions.Item[_paramName]
else:
_def = group.Definitions.Create(_paramName, _paramType, _visible)

builtInCategory = System.Enum.ToObject(BuiltInCategory, _category.Id)
cats = app.Create.NewCategorySet()
cats.Insert(doc.Settings.Categories.get_Item(builtInCategory))
if _instance:
bind = app.Create.NewInstanceBinding(cats)
else:
bind = app.Create.NewTypeBinding(cats)
param = doc.ParameterBindings.Insert(_def, bind, _paramGroup)

# “End” the transaction
TransactionManager.Instance.TransactionTaskDone()

#Assign your output to the OUT variable
if message == None:
OUT = “Success”
else:
OUT = message

I got some Warning

Please help me…

2

you have indentation issues in your code. Indentation is very important in python ! for example, when creating a function, you need an indent, like this :

def func(x,y):
	s = x+y
	return s

read this , it will help you understand and fix your code:
http://www.diveintopython.net/getting_to_know_python/indenting_code.html

1 Like
3

@Mostafa_El_Ayoubi Thanks …

4

@bikashseas It would be better if you could share the final script here so that anyone facing same issue can get the solution. Thanks :slight_smile:

5

@Kulkul I used the same script,But its not working when I copy it from another source.For this node anyone can download the package>>>> archi-lab.net<<<< Node name >>>Add Shared Parameter to Project<<<:slight_smile: