RPC ListGrid

[romain.vdk]

Hi guys,

I'm trying since the beginning of the month to make a listgrid working with RPC calls, without success.
Here is what I exactly want to do :
- I've some search criterias at the top of the page and a submit button. When submitting the form, I wish to update the Listgrid threw a RPC call
- I've activated the listgrid's filter bar. When updating the filter, I wish the same RPC call to be made.

By now, I use a datasource parsing XML but it's not enough (error handling) for the case I'm working on. I need the onSuccess and onFailure RPC methods.

Is there a way (and what is it?) to work?

[Isomorphic]

What do you mean by "RPC calls"? GWT-RPC? We don't recommend GWT-RPC (see the FAQ) as it's overcomplicated and does far less than the Pro product you already have.

If you mean "RPC" in the sense of our RPCManager, the Pro/EE Showcase has many examples of this type of interaction - follow any of them.

[romain.vdk]

Yes I intended to use the GWT-RPC.
But, ok to use the Datasource, I'm writing some test-example to show you exactly what I try to do.

[romain.vdk]

Okay, here is my example

The XML url in the datasource is a dynamic XML generated by Spring and have the following look :

<response>
<status>0</status>
<startRow>0</startRow>
<endRow>2</endRow>
<totalRows>1347</totalRows>
−
<data>
−
<transportResult>
<ituCode>404007801</ituCode>
<lastStatus>30</lastStatus>
<terminals>
						578<br/>
						558<br/>
						558
					</terminals>
<fullOrEmpty>1</fullOrEmpty>
<weights>
						5750<br/>
						2050
					</weights>
<statusDate>Mon Mar 02 11:40:39 CET 2009</statusDate>
<departureDate>Mon Mar 02 11:40:39 CET 2009</departureDate>
−
<actors>

						0042020<br/>
						0042020<br/>
						0042023
					
</actors>
<refNumbers>
						KEINE<br/>
						5785600009
					</refNumbers>
−
<controlNumbers>

						50276<br/>
						50276<br/>
						318049541010
					
</controlNumbers>
</transportResult>
−
<transportResult>
<ituCode>404007942</ituCode>
<lastStatus>50</lastStatus>
<terminals>
						578<br/>
						520<br/>
						520
					</terminals>
<fullOrEmpty>1</fullOrEmpty>
<weights>
						11758<br/>
						2050
					</weights>
<statusDate>Tue Mar 03 09:34:00 CET 2009</statusDate>
<departureDate>Mon Mar 02 11:40:28 CET 2009</departureDate>
−
<actors>

						0042020<br/>
						0042120<br/>
						0042023
					
</actors>
<refNumbers>
						KEINE<br/>
						5785600051
					</refNumbers>
−
<controlNumbers>

						50276<br/>
						50276<br/>
						318049543461
					
</controlNumbers>
</transportResult>
</data>
</response>

My first question is (resolved) : once the search is made, I only see the 2 results in my listgrid. No pagination is made at all, why?

A second question is : once the search is made, the filter field is not updated imediately. I have to click on the filter's field to update it. How could I update it directly?

[romain.vdk]

Ok, for the point 1 I found what was wrong ...
The correct code for the pagination is the following :

searchItu.addClickHandler(new ClickHandler() {
	@Override
	public void onClick(ClickEvent arg0) {
		Criteria c = new Criteria();
		c.addCriteria("ituCode",inputItu.getText());
		listGrid.invalidateCache();
		listGrid.fetchData(c, new DSCallback() {
			public void execute(DSResponse response, Object rawData, DSRequest request) {
				// Do not set the data here!
				// listGrid.setData(response.getData());
			}
		});
	}
});

[svjard]

What exactly do you mean the filter field not updated? You mean it doesn't populate with the pre-defined criteria you have? Anyway can always directly change it with setFilterEditorCriteria().

[romain.vdk]

I think my filter is properly populated, but I have to click on the filter to "update" the data.
I will explain it in an other way: I put the data I want in an inputBox. Threw a button, I submit the search and the datasource is updated. The data in the listgrid are properly shown, but at that time nothing is displayed in the filter. When I want to edit the empty filter box, I click on it and tada, my criteria appears ...
What I want is that the criteria appears in the filter when I click on the button. I tried yous solution, but it changed nothing ...

[svjard]

Well setFilterEditorCriteria() will populate the filter editor with the criteria given the criteria is correct. Are you trying a really simple criteria as a test?

[romain.vdk]

Yes I am. I'll show you what I'm using :

final ListGrid listGrid = new ListGrid();
ListGridField ituCode = new ListGridField("ituCode","Itu Code");
ituCode.setFrozen(true);
ituCode.setWidth(120);
/* some code to initialize other fields */
listGrid.setFields(ituCode,lastStatus,terminals,fullOrEmpty,weights,statusDate,departureDate,actors,refNumbers,controlNumbers);

searchItu.addClickHandler(new ClickHandler() {
	@Override
	public void onClick(ClickEvent arg0) {
		Criteria c = new Criteria();
		c.addCriteria("ituCode",inputItu.getText());
		listGrid.setFilterEditorCriteria(c);
		listGrid.invalidateCache();
		listGrid.fetchData(c,dsaction);
	}
});

So you can see that my criteria is very simple, but sadly using your method just changes nothing ...