Latest Contributions by Nicole_Ueberschär

Hi folks,  with help of https://community.esri.com/people/xander_bakker/blog/2016/07/19/implementing-cascading-drop-down-lists-in-a-toolbox-using-validation-with-python I gained some understanding how I can make my script tool take conditions and additional information to fill the tool.  I have three input parameters (a directory, a min and a max value). I would like to have a multiple choice list of those indicators in my txt file (in that directory) that are not empty.  My validator should check the first txt file in that directory, read the field names, if they are not within a list of excluded field names then read the first value, if it is not None than add the field name to a list. Works perfectly in pyscripter.  And I also get the correct list displayed in my tool script. Buuut, the tool says the parameter's field type is invalid after displaying the field names. I could imagine that it has something to do with the filter in the parameter which is set to DataType=Field but of course it is not really a field name any longer after returning it from my script. But what else could I use? Or can I somehow tell the self.params that it is still a (list of) field name(s)?  This is my updateParameters.  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 filedir: arcpy.env.workspace = filedir list_of_files = arcpy.ListFiles("*.txt") firsttable=list_of_files[0] print(firsttable) print(filedir) complete_filename = str(filedir)+"\\"+firsttable print(complete_filename) table=arcpy.MakeTableView_management(complete_filename, "kivu_tview") desc = arcpy.Describe(table) #fieldnamesoriginal=[field.name.encode("utf-8") for field in desc.fields] ##collects all fieldnames fieldselectlist=[] for ofields in desc.fields: ftype=ofields.type fname=ofields.name.encode("utf-8") if ftype=="Double" or ftype=="Long": print(fname) if fname!="Profile_No" and fname!="Longitude (degrees_east)" and fname!="Latitude (degrees_north)" and fname!="Bot. Depth (m)" and fname!="Depth (m)": with arcpy.da.SearchCursor(table, fname) as calcursor: for calcrow in calcursor: if calcrow[0] is not None: fieldselectlist.append(fname) break print(fieldselectlist) self.params[3].filter.list =fieldselectlist self.params[3].value=fieldselectlist return ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Any hint would be highly appreciated.  ... View more

Hi folks,  I have some preconditions to run my python script tool, for example that you have to create a local copy for editing first when using a hosted feature service layer. I can use exit() with an if statement (I also tried exit(0) and exit(1)) and it stops my script but it "pretends" to have ran succesfully which it did not (because I stopped it before proceeding). I would like to show the user a last message so he knows what he has to do before running the script again. Like the system error messages you find in that geoprocessing window but more helpful 😉   ... View more