setValue on combobox using setOptionDataSource fires ChangedEvent

[levi]

Hi,

I've got a problem with my combobox. It's firing a changedEvent from code.
It's using a an option client only data source, a ListGrid as picklistproperties.

When I have all possible records to show in the dropdown, I do

		datasource.setCacheData(newRecords);
		if (this.isCreated()) {
			//Re-populate the new records
			this.fetchData();
		}

When I know in code which record actually should be selected, I do form.setValue(COMBO_NAME, id).
This causes an ItemChangedEvent to be fired, which I didn't expect because it's code doing a setValue, not a user changing it.


This is the JS stacktrace onItemChanged.
The textual value for 'id' is "Take It" which you see here.

isc_FormItem_handleChanged([object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_Forms.js:1389
isc_c_Class_invokeSuper(null,"handleChanged")@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:306
isc_c_Class_Super("handleChanged",[object Arguments])@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:298
isc_ComboBoxItem_handleChanged([object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_Forms.js:2793
isc_FormItem_storeValue([object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_Forms.js:1386
isc_FormItem__updateValue([object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_Forms.js:1383
isc_c_Class_invokeSuper(null,"$10y")@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:306
isc_c_Class_Super("$10y",[object Arguments])@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:298
isc_ComboBoxItem__updateValue("Take It")@http://127.0.0.1:8888/app/sc/modules/ISC_Forms.js:2791
isc_FormItem_updateValue()@http://127.0.0.1:8888/app/sc/modules/ISC_Forms.js:1381
19v()@http://127.0.0.1:8888/app/sc/modules/ISC_Forms.js:2216
dataArrived(0,1,[object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_Forms.js:2226
setUpPickList(0,1)@http://127.0.0.1:8888/app/sc/modules/ISC_Forms.js:2179
isc_ListGrid__dataArrived(0,1)@http://127.0.0.1:8888/app/sc/modules/ISC_Grids.js:1283
anonymous(0,1)@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:66
isc_ResultSet__doneDataArriving(0,1,false)@http://127.0.0.1:8888/app/sc/modules/ISC_DataBinding.js:1483
fetchRemoteDataReply([object Object],[object Array],[object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_DataBinding.js:1424
isc_c_Class_fireCallback([object Object],"dsResponse,data,dsRequest",[object Array],[object Object],(void 0))@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:323
isc_Class_fireCallback([object Object],"dsResponse,data,dsRequest",[object Array])@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:421
isc_DataSource_fireResponseCallbacks([object Object],[object Object],[object Object],[object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_DataBinding.js:584
isc_DataSource__completeResponseProcessing([object Object],[object Object],[object Object],[object Object],[object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_DataBinding.js:581
isc_DataSource__handleClientOnlyReply([object Object],[object Object],[object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_DataBinding.js:431
isc_c_Class_fireCallback([object Object],"rpcResponse,data,rpcRequest",[object Array],[object Object],(void 0))@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:323
isc_Class_fireCallback([object Object],"rpcResponse,data,rpcRequest",[object Array])@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:421
isc_c_RPCManager_fireReplyCallback([object Object],[object Object],[object Object],[object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_DataBinding.js:1312
(?)([object Object],[object Object],[object Object],[object Object])@http://127.0.0.1:8888:186
isc_c_RPCManager_fireReplyCallbacks([object Object],[object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_DataBinding.js:1317
isc_c_RPCManager_performOperationReply([object Object],[object Object])@http://127.0.0.1:8888/app/sc/modules/ISC_DataBinding.js:1311
isc_c_RPCManager__performTransactionReply(86)@http://127.0.0.1:8888/app/sc/modules/ISC_DataBinding.js:1305
isc_c_Class_fireCallback([object Object],(void 0),[object Array],[object Object],true)@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:323
isc_c_Timer__fireTimeout("$ir589")@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:1334
@http://127.0.0.1:8888/app/sc/modules/ISC_Core.js:1329

Do you share the view that form.setValue calls never should cause an ItemChangedEvent? Where should I be looking for the problem?

thanks


SmartClient Version: SC_SNAPSHOT-2011-11-07/Pro Deployment (built 2011-11-07)
FF4 dev mode

[Isomorphic]

Sorry this has way to little context, we can't follow what components are involved here or what the flow is. Try adding more detail, ideally, code we can run to see a problem.

[levi]

Yes, sorry. I've created a very minimal similar case, but there I don't have the changed event. So I need to figure out where it could be coming from.

I had hoped that stacktrace tells you something more than myself :)


I'll see if I can get to the bottom of the problem.

[Isomorphic]

The stack trace often does tell us a lot, so it's good to include it. But this case is a bit too convoluted for just the stack trace to be enough - hopefully you will be able to create a standalone case we can look at.