WPF interface and EventHandler

DmytroSE · January 19, 2021, 6:25pm

Hello everyone!
I want to automatically update my active non-modal WPF form every time, for example, I change the active view. At the moment I need to create a button and press it manually
Is it possible to achieve such an automatic refresh with pyrevit?

Thanks for help

eirannejad · January 19, 2021, 9:08pm

@DmytroSE Take a look at this bundle in pyRevit Dev extension

DmytroSE · January 19, 2021, 10:52pm

@eirannejad many thanks, that helped a lot!
Somehow missed that example

If someone needs, here is what we need in the code:

github.com

DmytroSE/RevitApi-Python/blob/master/WPF and EventHandler

# pylint: skip-file
from pyrevit import HOST_APP, framework, EXEC_PARAMS
from pyrevit import forms
from pyrevit import revit, DB, UI
from pyrevit.runtime import types as runtime_types
from pyrevit.framework import Input
from pyrevit import script
__persistentengine__ = True

class NonModalWindow(forms.WPFWindow):
    def __init__(self):
        pass

    def setup(self):
        self.update_ui()

    @revit.events.handle('doc-changed', 'doc-closed', 'doc-opened', 'view-activated')
    def uiupdator_eventhandler(sender, args):
        ui.update_ui()

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eirannejad · January 20, 2021, 12:45am

@DmytroSE This is great thanks for sharing here. The @revit.events.handle() decorator was something I started a while ago as a way of tying a python function to Revit handlers. I have only implemented these 4 events but more could also be added to revit/events.py module

DmytroSE · January 24, 2021, 3:33pm

@eirannejad I found a little issue. When I run the WPF form with a smartbutton eventhandler(revit document opened) the @revit.events.handle() decorator is not working. Need to re-open my script manually
Here is a link:

and code:

github.com

DmytroSE/RevitApi-Python/blob/master/Test Sensors.smartbutton/script.py

# pylint: skip-file
#from pyrevit import HOST_APP, framework, EXEC_PARAMS
from pyrevit import forms
#from pyrevit.runtime import types as runtime_types
from pyrevit.framework import Input
from pyrevit import framework
from pyrevit import script, revit
from pyrevit import DB, UI
from pyrevit import script
from pyrevit import HOST_APP, EXEC_PARAMS

from Autodesk.Revit.UI import TaskDialog
from pyrevit.forms import WPFWindow

__persistentengine__ = True
import os

class NonModalWindow(WPFWindow):

    def __init__(self, xaml_file_name):

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GertjanVDB · February 2, 2021, 10:25am

Thanks for the example @DmytroSE , looks like it works for me too.
I’ve got some followup questions though.

Is it normal that the window_closing function doesn’t output anything when I put a print statement in there? I wanted to check if it was called. Didn’t do anything
What software do you use to design you xaml files? Right now I’m using VS, but I’m looking into a free opensource replacement.

DmytroSE · February 14, 2021, 10:59pm

You’re welcome! I use Sharp Develop, but it is very unstable and has many errors. So I don’t know what else to recommend