Hi Isomorphic,
please see this testcase (using v10.0p_2015-05-06):
For me, there are two fetches on ListGrid creation. This does not happen without the setSortByGroupFirst(true) call.
The requests are:
1st request (see endRow:457 and setGroupByMaxRecords(456) in the code):
2nd request (not needed):
I reported a similar bug, which is fixed, for 4.1p here.
I also remember getting a log entry in the Developer Console like (from memory) "The ResultSet for ListGrid xyz was discarded while ..." back then. I do not get this message now.
Best regards
Blama
please see this testcase (using v10.0p_2015-05-06):
Code:
package com.smartgwt.sample.client;
import com.google.gwt.core.client.EntryPoint;
import com.smartgwt.client.core.KeyIdentifier;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.data.SortSpecifier;
import com.smartgwt.client.types.SortDirection;
import com.smartgwt.client.util.PageKeyHandler;
import com.smartgwt.client.util.Page;
import com.smartgwt.client.util.SC;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;
import com.smartgwt.client.widgets.layout.HLayout;
import com.smartgwt.client.widgets.layout.VLayout;
public class BuiltInDS implements EntryPoint {
private VLayout vL;
private TestGrid tG;
private HLayout hL;
public void onModuleLoad() {
KeyIdentifier debugKey = new KeyIdentifier();
debugKey.setCtrlKey(true);
debugKey.setKeyName("D");
Page.registerKey(debugKey, new PageKeyHandler() {
public void execute(String keyName) {
SC.showConsole();
}
});
vL = new VLayout(5);
vL.setTop(20);
vL.setLeft(20);
vL.setWidth100();
vL.setHeight100();
tG = new TestGrid();
hL = new HLayout(5);
IButton reload = new IButton("Reload");
reload.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
vL.removeChild(tG);
tG.markForRedraw();
tG = new TestGrid();
vL.addMember(tG, 0);
}
});
IButton getConfig = new IButton("Get ViewState");
getConfig.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
SC.say(tG.getViewState());
}
});
hL.addMembers(reload, getConfig);
vL.addMembers(tG, hL);
vL.draw();
}
private class TestGrid extends ListGrid {
public TestGrid() {
super(DataSource.get("animals"));
setAutoFetchData(false);
setCanSort(true);
setGroupByMaxRecords(456);
ListGridField commonName = new ListGridField("commonName");
ListGridField scientificName = new ListGridField("scientificName");
ListGridField lifeSpan = new ListGridField("lifeSpan");
ListGridField status = new ListGridField("status");
ListGridField diet = new ListGridField("diet");
ListGridField information = new ListGridField("information");
setGroupByField(status.getName());
setSortByGroupFirst(true);
setFields(commonName, scientificName, lifeSpan, status, diet, information);
setSort(new SortSpecifier[] { new SortSpecifier(lifeSpan.getName(), SortDirection.ASCENDING),
new SortSpecifier(diet.getName(), SortDirection.DESCENDING) });
fetchData();
}
}
}The requests are:
1st request (see endRow:457 and setGroupByMaxRecords(456) in the code):
Code:
{
dataSource:"animals",
operationType:"fetch",
componentId:"isc_BuiltInDS_TestGrid_5",
data:{
},
startRow:0,
endRow:457,
sortBy:[
"status",
"lifeSpan",
"-diet"
],
textMatchStyle:"exact",
resultSet:[ResultSet ID:isc_ResultSet_5 (dataSource: animals, created by: isc_BuiltInDS_TestGrid_5)],
callback:{
caller:[ResultSet ID:isc_ResultSet_5 (dataSource: animals, created by: isc_BuiltInDS_TestGrid_5)],
methodName:"fetchRemoteDataReply"
},
willHandleError:true,
showPrompt:true,
prompt:"Finding Records that match your criteria...",
oldValues:{
},
requestId:"animals$6279",
internalClientContext:{
requestIndex:1
},
fallbackToEval:false,
lastClientEventThreadCode:"MUP8",
bypassCache:true
}Code:
{
dataSource:"animals",
operationType:"fetch",
componentId:"isc_BuiltInDS_TestGrid_5",
data:{
},
startRow:0,
endRow:75,
sortBy:[
"status",
"lifeSpan",
"-diet"
],
textMatchStyle:"exact",
resultSet:[ResultSet ID:isc_ResultSet_5 (dataSource: animals, created by: isc_BuiltInDS_TestGrid_5)],
callback:{
caller:[ResultSet ID:isc_ResultSet_5 (dataSource: animals, created by: isc_BuiltInDS_TestGrid_5)],
methodName:"fetchRemoteDataReply"
},
willHandleError:true,
showPrompt:true,
prompt:"Finding Records that match your criteria...",
oldValues:{
},
requestId:"animals$62710",
internalClientContext:{
requestIndex:2
},
fallbackToEval:false,
lastClientEventThreadCode:"TMR0",
bypassCache:true
}I also remember getting a log entry in the Developer Console like (from memory) "The ResultSet for ListGrid xyz was discarded while ..." back then. I do not get this message now.
Best regards
Blama