Latest Contributions by DarrenWiens2

As Freddie Gibson says, use tool validation. def updateParameters(self):     """Modify the values and properties of parameters before internal     validation is performed.  This method is called whenever a parameter     has been changed."""     if self.params[1].value == True:         self.params[0].value = arcpy.env.workspace     return 1.) 2.) ... View more

Something like this may be useful, although it occurs to me now that you may want to use a dictionary instead of lists: import os, arcpy pws = "PWS_ID='465'" files = ['DBP_STAGE2', 'BACTI', 'WTP', ..., 'OFFICE'] # list all file names layers = ['DBP Stage 2', 'Bacti', 'WTP', ..., 'Office'] symNames = ['DBP2', 'BACTI', 'WTP', ..., 'OFFICE'] root = 'V:\\WATER_FACILITY\\WATER_FACILITY.gdb' paths = [] for file in files:     path = os.path.join(root, file)     paths.append(path) # now have list of paths symRoot = 'V:\\Source Water Protection\\PWS_ID_Tool' symPaths = [] for symName in symNames:     symPath = os.path.join(symRoot, symName) + '.lyr'     symPaths.append(symPath) # now have list of symbol paths for i in range(len(files)):     arcpy.MakeFeatureLayer_management(paths, layers, pws) # make all the layers     arcpy.ApplySymbologyFromLayer_management(layers, symPaths) # apply the symbologies Ideally, your files, layers, etc. would have a consistent naming convention (e.g. all DBP2 files had the name 'DBP2', not "DBP_STAGE2', etc.) so you'd only need one list, but you've got to work with what you've got. ... View more