Python Add-In Combobox Auto-Complete ?

JohnDye — Fri, 21 Feb 2014 13:43:40 GMT

Any good ideas on implementing an Auto-Complete function within a combobox??

I have three comboboxes:
MAPSearch_item: Allows the user to select from a drop down, a layer to to execute the search against
MAPSearch_field: Allows the user to select from a drop down, the attribute field in the 'MAPSearch_item' to search within
MAPSearch_query: Allows the user to enter the value to search for in the selected field of the selected item. Once they hit enter, if the 'search value' is found, a select_analysis is executed and a feature class is added to the MXD containing the selected features.

To prevent users from misspelling a search value which would result in an error being raised, I'd like the 'MAPSearch_query' combobox to try and autocomplete the search term as they type it into the combobox. Any nifty ideas here?

Here's my code thus far:

class MAPSearch_item(object):
    """Implementation for MAPSearch.item (ComboBox)"""
    def __init__(self):
        self.items = ["Stores", "Customers"]
        self.editable = False
        self.enabled = True
        self.dropdownWidth = 'XXXXXXXXXXXXXXXXXXXXXXXXXX'
        self.width = 'XXXXXXXXXXXXXXXXXXXXXXXXXX'
    def onSelChange(self, selection):
        global SearchItem
        SearchItem = selection
        if selection == "Stores":
            try:
                SearchLayer = arcpy.mapping.Layer(r"C:\ArcGIS\SYSTEM\COF\Data\Layers\
                                                    Stores.lyr")
            except Exception as e:
                pythonaddins.MessageBox("\
                An unexpected error occured. Please contact the GIS Manager with the \
                following error message: \
                " + e.message, "ERROR", 0)
                return
        elif selection == "Customers":
            try:
                SearchLayer = arcpy.mapping.Layer(r"C:\ArcGIS\SYSTEM\COF\Data\Layers\
                                                    Customers.lyr")
            except Exception as e:
                pythonaddins.MessageBox("\
                An unexpected error occured. Please contact the GIS Manager with the \
                following error message: \
                " + e.message, "ERROR", 0)
                return
        else:
            pythonaddins.MessageBox("Item is not a valid selection.", "ERROR", 0)
            return
    def onEditChange(self, text):
        pass
    def onFocus(self, focused):
        pass
    def onEnter(self):
        pass
    def refresh(self):
        self.refresh()

class MAPSearch_field(object):
    """Implementation for MAPSearch.field (ComboBox)"""
    def __init__(self):
        self.items = ["Name", "Store ID", "Street Address", "District", "Region", \
                      "Market", "Project Number", "Project Action", "Project Timing"]
        self.editable = False
        self.enabled = True
        self.dropdownWidth = 'XXXXXXXXXXXXXXXXXXXXXXXXXX'
        self.width = 'XXXXXXXXXXXXXXXXXXXXXXXXXX'
    def onSelChange(self, selection):
        global SearchField
        SearchField = selection
        global SearchSet
        try:
            SearchSet = set(r[0] for r in arcpy.da.SearchCursor(SearchLayer,
                                                                SearchField))
        except Exception as e:
            pythonaddins.MessageBox("\
            An unexpected error occured. Please contact the GIS Manager with the \
            following error message: \
            " + e.message, "ERROR", 0)
            return
    def onEditChange(self, text):
        pass
    def onFocus(self, focused):
        pass
    def onEnter(self):
        pass
    def refresh(self):
        self.refresh()

class MAPSearch_query(object):
    """Implementation for MAPSearch.query (ComboBox)"""
    def __init__(self):
        self.items = []
        self.editable = True
        self.enabled = True
        self.dropdownWidth = ''
        self.width = 'XXXXXXXXXXXXXXXXXXXXXXXXXX'
    def onSelChange(self, selection):
        pass
    def onEditChange(self, text):
        pass
    def onFocus(self, focused):
        pass
    def onEnter(self):
        SearchTerm = selection
        if SearchTerm in SearchSet:
            try:
                ResultName = SearchItem + "_" + SearchTerm
                Select_analysis(SearchLayer, ResultName,
                                '"' + SearchField + '" = ' + "'" + SearchTerm + "'")
            except Exception as e:
                pythonaddins.MessageBox("\
                An unexpected error occured. Please contact the GIS Manager with the \
                following error message: \
                "+ e.message, "ERROR", 0)
        else:
            pythonaddins.MessageBox("\
            The search term entered was not found in the selected attribute field for \
            the selected item. Please check your spelling and ensure you have the \
            correct search dataset and attribute field selected. If you need \
            assistance with this issue, please contact the GIS Manager.", "ERROR", 0)
    def refresh(self):
        self.refresh()

Re: Python Add-In Combobox Auto-Complete ?

JohnDye — Tue, 25 Feb 2014 19:56:27 GMT

Discovered a quazi-solution to this. It turns out that when a combobox is populated with values, if you hit the drop-down and then click inside the combobox to type in a value, the drop down remains displayed and will jump to exact value matches when you type them.

Not really an auto-complete like I wanted, but an interesting discovery nonetheless.

Still, what I want to try to implement is a way for the combobox to suggest values as you type, similar to the way google suggests search queries as you type them into google's searchbox.

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Python Add-In Combobox Auto-Complete ?

Re: Python Add-In Combobox Auto-Complete ?