Latest Contributions by jonsosito

If you want to have the tool simply not tromp any already-set values, within your model you could run a select features by attribute on the input table view (for blank or null values) before running calculate field.  Input table -> Select Layer By attribute -> (table)  -> Calculate Field -> (table) -> Select Layer By Attribute (clear selection) This would be less complicated than setting up a script tool and doing parameter validation as I suggested. Another thing you may want to try in your model is not do anything if zero or more than a certain amount of rows are selected, so you don't accidentally calculate all rows. This would be done using the Get Count tool, sending its output to calculate value with an expression like "%Count% > 0 or %Count% < 100", and using the output as a precondition: Input table -> Select Layer By attribute -> (table) -> Get Count -> (count) -> Calculate value -> (output) -> [precondition] -> Calculate Field -> (table) -> Select Layer By Attribute (clear selection) Thanks sir, you have given me a very good idea and I have managed to apply it to my ModelBuilder... see attached pic... this modelbuilder get-street-field-value, now I know if street field has value or null... this work for me even better! Thanks again... ^_^ [ATTACH=CONFIG]11287[/ATTACH] ... View more

What you're trying to do is is something called parameter validation -- and you can only do this with a script tool. You could write a very short Python script tool that just imports arcpy and calls your model, so you can set up validation on its arguments. Thank you sir for your reply but this is only optional in my task. thanks also for the link ^_^ The main problem is how may I determine if field 'Street' is empty (or null) before making an entry of street name, this is from a selected features. Please see my dialog box.... [ATTACH=CONFIG]11239[/ATTACH] ... View more

i think yes,,,, according to this link click this. jon business analyst geodata systems technologies ... View more

I am customizing the query widget to run a query on an existing feature layer in the map. Basically I want to display all features from that layer in the list and have the infowindow configured to that layer come up when an individual feature is selected from the list. The template I am using is the AttRelateInfoWinWidget by Robert Scheitlin. This works when I am not using the custom query widget but when the query widget is loaded the layer displays no information in the infowindow, even when the widget is closed. I have commented out //map.addLayer(graphicsLayer) and replaced //queryLayer = new FeatureLayer(layerURL) with queryLayer = map.getLayer("MyLayer") as FeatureLayer. I have tried commenting out all references to the infowindow, but the infowindow still doesn't work when clicking on the point on the map even when the query widget is closed. hi shannaka, are you trying to make identify of a feature layer that will display in your infowindow? ... View more