I'm making a python toolbox and it has an input parameter of type GPFeatureLayer. Let's call it
my_param.altered, its value is added to a value table. Then I'd like to set
my_param.value = None, so that the selection is blanked out and same value could be immediately selected again.
As it stands right now, setting
my_param.value = None means that that layer cannot be chosen again.
Why is this happening, and how can I achieve what I'm trying to do?
Here is some example code for you to use:
def getParameterInfo(self): my_param = Parameter(displayName='My Param', name='my_param', datatype='GPFeatureLayer', parameterType='Optional', direction='Input') return [my_param] def updateParameters(self, parameters): my_param = parameters if my_param.altered: (function that appends my_param.value to another table, not important for this problem) my_param.value = None return