Add multiple filters to current view

This script will add filters from Revit project to current view with visibility control option.

Script scheme is:

"View & it name" node code is:

import clr
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager

doc = DocumentManager.Instance.CurrentDBDocument

myview = doc.ActiveView
myviewname = myview.Name
OUT = myviewname, myview

"WindowsForm Create" node code is:

import clr
clr.AddReference('System.Windows.Forms')
clr.AddReference('System.Drawing')

from System.Drawing import *
from System.Windows.Forms import *

class TESForm(Form):
    def __init__(self, args, viewname):
        viewlen = len(viewname)*15
        
        self.Text = "Add multiple filters to current view"
        self.Width = viewlen + 80
        self.Height = 350
        self.MaximizeBox = False
        self.MinimizeBox = False
        self.ControlBox = False
        self.FormBorderStyle = FormBorderStyle.FixedSingle
        self.ShowIcon = False
        self.StartPosition = FormStartPosition.CenterScreen
        self.TopMost = True
        self.values = []
        
        header = 'Add filters to view "%s"' %viewname
        self.label = Label(Text = header)
        self.label.Location = Point(20, 10)
        self.label.Height = 20
        self.label.Width = viewlen + 30
        
        self.list = ListBox()
        self.list.Size = Size(viewlen + 20, 200)
        self.list.Location = Point(20, 40)
        
        for i in args:
           self.list.Items.Add(i.Name)
        self.list.SelectionMode = SelectionMode.MultiExtended
        self.list.SetSelected(0, True)
        
        self.label_n = Label(Text = "Visibility of filters:")
        self.label_n.Location = Point(20, 250)
        self.label_n.Height = 20
        self.label_n.Width = 200
        
        self.check = CheckBox()
        self.check.Location = Point(220, 246)
        self.check.Text = 'Yes / No'
        self.check.Checked = True
        self.check.Width = 80
      
        self.button = Button()
        self.button.Text = "Add filter to current view"
        self.button.Width = viewlen + 20 - 60
        self.button.Location = Point (20, 275)
        self.button.Click += self.setclose
        
        self.button1 = Button()
        self.button1.Text = "Exit"
        self.button1.Width = 50
        self.button1.Location = Point (viewlen + 20 - 30, 275)
        self.button1.Click += self.setexit
        
        self.Controls.Add(self.label)
        self.Controls.Add(self.button)
        self.Controls.Add(self.button1)
        self.Controls.Add(self.list)
        self.Controls.Add(self.label_n)
        self.Controls.Add(self.check)
    
    def setclose(self, sender, event):
        sub = form.list.SelectedIndices, form.list.SelectedItems
        sup = form.check.Checked
        self.values = sub, sup, 'Ok'
        self.Close()
    
    def setexit(self, sender, event):
        sub = [], []
        self.values = sub, False, 'Exit'
        self.Close()


viewfilters = IN[0]
current_view = IN[1][0]
form = TESForm(viewfilters, current_view)
form.ShowDialog()
result = list(form.values[0])
Indices = result[0]
viewfilterstoadd = [viewfilters[idx] for idx in Indices]
OUT = viewfilterstoadd, form.values[1], form.values[2]

"Add flters" node code is:

import clr

clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument

clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *
import System
from System.Collections.Generic import *

dataEnteringNode = IN

filters = UnwrapElement(IN[0][0])
view = UnwrapElement(IN[1][1])
visOrNot = IN[0][1]
output = []

TransactionManager.Instance.EnsureInTransaction(doc)
for fil in filters:
 try:
  view.AddFilter(fil.Id)
  view.SetFilterVisibility(fil.Id, visOrNot)
  output.append(fil.Name)
 except:
  pass

TransactionManager.Instance.TransactionTaskDone()

OUT = output

"Show message" node code is: 

import clr
clr.AddReference('RevitAPIUI')
from Autodesk.Revit.UI import *

dataEnteringNode = IN
name = IN[2][0]
filtersnames = IN[0]

if len(filtersnames) != 0:
 maincontent = u'\n'.join(filtersnames)
 maininstruction = u"To the view:\n'%s'\nhave been added filters:" %name
else:
 maincontent = 'Filters were not added!\nFilters are not selected or are already added to the view!'
 maininstruction = u"To the view '%s':" %name
header = 'Add multiple filters to current view'
dialog = TaskDialog(header) 
dialog.TitleAutoPrefix = False
dialog.AllowCancellation = True
dialog.CommonButtons = TaskDialogCommonButtons.Ok;
dialog.MainIcon = TaskDialogIcon.TaskDialogIconNone
dialog.MainInstruction = maininstruction
dialog.MainContent = maincontent
if len(name) != 0 and IN[1][2] == 'Ok':
 dialog.Show()

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