Ok I'm a newbie in this area so I need to understand how exceptions are raised...
Below is my Add-in code which is essentially the example for a button on a toolbar in the ArcGIS 10.1 Python wizard help.
I've added the error handling.....
So the problem is that nothing happens - the button does not work but neither are there any exceptions raised...
So what am I doing wrong? The add-in toolbar appears in the project, the button is enabled but no exceptions appear in the python window and I have no indication the code is executing.
import arcpy
import pythonaddins
class ButtonClass11(object):
"""Implementation for test_addin.button (Button)"""
def __init__(self):
self.enabled = True
self.checked = False
try:
# Implementation of OnClick method of Button's class
def onClick(self):
# Get the current map document and the first data frame.
mxd = arcpy.mapping.MapDocument('current')
df = arcpy.mapping.ListDataFrames(mxd)[0]
# Call the zoomToSelectedFeatures() method of the data frame class
df.zoomToSelectedFeatures()
pass
except Exception, e:
traceback.print_exc()
Maybe a dumb question, but do you have any features selected when you click the button?You can also put a print statement before and after the line you expect to 'do stuff'. In the code above, you can test the zoomToSelectedFeatures method like so,
print "...attempting to run zoomToSelected"
# Call the zoomToSelectedFeatures() method of the data frame class
df.zoomToSelectedFeatures()
print "...finished running zoomToSelected"
This will output the two statements in the Python window when you click the add-in button. Just a quick and dirty way to debug.