GetCriteria returns NULL

Smart GWT Technical Q&A
1

Hi. I’m sure I’m missing something obvious, but I can’t figure out what. When I add criteria to a grid (whether via ListGrid.getCriteria() or ListGrid.getFilterEditorCriteria()), I always get NULL when I subsequently call the corresponding getCriteria method.

I have:

public class SmartGWTTestCase implements EntryPoint
{
	public void onModuleLoad()
	{

		if (!GWT.isScript())
		{
			KeyIdentifier debugKey = new KeyIdentifier();
			debugKey.setCtrlKey(true);
			debugKey.setKeyName("D");
			Page.registerKey(debugKey, new KeyCallback()
			{
				public void execute(String keyName)
				{
					SC.showConsole();
				}
			});
		}

		RPCManager.setPromptStyle(PromptStyle.CURSOR);
		DataSource dataSource = DataSource.get("myds");

		final ListGrid listGrid = new ListGrid();
		listGrid.setWidth100();
		listGrid.setHeight100();
		// listGrid.setAutoFetchData(true);
		listGrid.setDataSource(dataSource);
		listGrid.setShowFilterEditor(true);
		listGrid.setUseAllDataSourceFields(true);
		ListGridField reportDateField = new ListGridField("reportDate");
		reportDateField.setFilterEditorType(new DateRangeItem(listGrid, "Report"));

		listGrid.setFields(reportDateField);

		listGrid.draw();

		com.smartgwt.client.data.Criteria c = new com.smartgwt.client.data.Criteria();
		c.addCriteria("startReportDate", new java.util.Date(0));
		listGrid.setCriteria(c);
		SC.say(listGrid.getCriteria() == null ? "null" : "Not null");
	}
}

And, of course, my ds.xml has the following line in it:

		<field name="startReportDate" type="date" hidden="true" customSQL="true"></field>
2

This should be clarified in the docs probably, but, there’s no point in calling setCriteria() on a grid before fetchData(). The criteria passed to fetchData() supercede whatever you might have set.

3

setFIlterEditorCriteria before a fetchData is sometimes necessary

GetFilterEditorCriteria return null always, even when I try to get right after setting it using setFIlterEditorCriteria.

In my case, i’m trying to set a criteria be cause the filter of a listGrid sends a fetch not using a filterData.

In my case, in which way should handle that automatically sends FetchData when I try to use the filter of a listGrid ?,

Thanks