Special_Features_Validation.py 文件源码

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."""
    try:

        if self.params[0].value and not self.params[0].hasBeenValidated:
            # clear the other parameters upon change of input layer
                self.params[1].value = ""

        rootDir = str(self.params[0].value)
        if os.path.isdir(rootDir) and rootDir.find('gdb') == -1 :
            #self.params[2].enabled = True
            #self.params[3].enabled = False

            valLst = []

            rootLst = os.listdir(rootDir)
            for e in rootLst:
                if os.path.isdir(rootDir + os.sep + e) and len(e) == 5:
                    if os.path.isdir(rootDir + os.sep + e) and len(e) == 5:
                        arcpy.env.workspace = (rootDir + os.sep + e)
                        fLst = arcpy.ListFeatureClasses()
                        fStr = str(fLst)
                        if fStr.find('_a.shp') <> -1 and fStr.find('_b.shp') <> -1\
                            and fStr.find('_c.shp') <> -1 and fStr.find('_d.shp') <> -1\
                            and fStr.find('_l.shp') <> -1 and fStr.find('_p.shp') <> -1:
                            if not e.upper() in valLst:
                                valLst.append(e)

                valLst.sort()
                self.params[1].filter.list = valLst


    except:
        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        #self.params[2].value = tbinfo + " \n" + str(sys.exc_type) + ": " + str(sys.exc_value)
        #self.params[4].value = "_".join(valList)
        return