Hi,
I need a value list which allows the user to select multiple values. Based on this selection, I need to update the first column of a value table with 2 columns. The second column is meant for the user to input values. I am trying this in a Python toolbox.
My code looks something like that at this point:
import arcpy
class Tool(object😞
def __init__(self😞
"""Define the tool (tool name is the name of the class)."""
self.label = "Tool"
self.description = ""
self.canRunInBackground = False
def getParameterInfo(self😞
"""Define parameter definitions"""
param0 = arcpy.Parameter(
displayName = "Select Fruit",
name = "Fruit_selection",
datatype = "GPString",
parameterType = "Required",
direction = "Input",
multiValue=True)
param0.filter.type = "ValueList"
param0.filter.list = ["Apple","Pear","Peach"]
param1 = arcpy.Parameter(
displayName = "Selection",
name = "Value_table",
datatype = "GPValueTable",
parameterType = "Required",
direction = "Input")
param1.columns =([["String", "Fruit_name"], ["Long","Fruit_price"]])
params = [param0,param1]
return params
def isLicensed(self😞
"""Set whether tool is licensed to execute."""
return True
def updateParameters(self, parameters😞
"""Modify the values and properties of parameters before internal
validation is performed. This method is called whenever a parameter
has been changed."""
vtab = []
if str(parameters[0].value) == ["Apple"]:
vtab.append(["Jonathan",2500])
vtab.append(["Gold",1000])
parameters[1].values = vtab
elif str(parameters[0].value) == ["Pear"]:
vtab.append(["Anjou",1000])
vtab.append(["Concorde",2000])
parameters[1].values = vtab
return
def updateMessages(self, parameters😞
"""Modify the messages created by internal validation for each tool
parameter. This method is called after internal validation."""
return
def execute(self, parameters, messages😞
"""The source code of the tool."""
return
Any help would be much appreciated.
Thank you!
