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    #1

    Too much recursion?

    Smartclient 7.0rc2

    Depends on the browser as to the error reported, but using FF it says 'too much recursion' in ISC_DataBinding.js Line 73

    To re-create the error, right-click on any of the columns in the upper listgrid and 'group by', then expand a row and drag it to the lower listgrid et voila.

    Dragging the row without grouping works perfectly to and from either listgrid.

    Each ListGrids is bound to a clientOnly DataSource because of a design constraint.

    Code:
    isc.setAutoDraw(false);

countryData = [
{
    continent:"North America",
    countryName:"United States",
    countryCode:"US",
    area:9631420,
    population:298444215,
    gdp:12360.0,
    independence:new Date(1776,6,4),
    government:"federal republic",
    government_desc:2,
    capital:"Washington, DC",
    member_g8:true,
    article:"http://en.wikipedia.org/wiki/United_states"
},
{
    continent:"Asia",
    countryName:"China",
    countryCode:"CH",
    area:9596960,
    population:1313973713,
    gdp:8859.0,
    government:"Communist state",
    government_desc:0,
    capital:"Beijing",
    member_g8:false,
    article:"http://en.wikipedia.org/wiki/China"
},
{
    continent:"Asia",
    countryName:"Japan",
    countryCode:"JA",
    area:377835,
    population:127463611,
    gdp:4018.0,
    government:"constitutional monarchy with parliamentary government",
    government_desc:1,
    capital:"Tokyo",
    member_g8:true,
    article:"http://en.wikipedia.org/wiki/Japan"
}
]

isc.DataSource.create({
    ID: "countryDS",
    fields:[
        {name:"countryCode", title:"Code",primaryKey:true},
        {name:"countryName", title:"Country"},
        {name:"capital", title:"Capital"}
    ],
    clientOnly: true,
    testData: countryData
})

isc.DataSource.create({
    ID: "outDS",
    fields:[
        {name:"countryCode", title:"Code",primaryKey:true},
        {name:"countryName", title:"Country"},
        {name:"capital", title:"Capital"}
    ],
    clientOnly: true
})

isc.ListGrid.create({
    ID: "countryList",
    width:500, height:224, alternateRecordStyles:true, showAllRecords:true,
    dataSource: countryDS,
    autoFetchData: true,
	    canDragRecordsOut: true,
			canEdit:false,
	    canAcceptDroppedRecords: true,
			showAllRecords:true,
	    dragDataAction: "move"

})

isc.ListGrid.create({
    ID: "countryOutList",
    width:500, height:224, alternateRecordStyles:true, showAllRecords:true,
    dataSource: outDS,
    autoFetchData: true,
	    canDragRecordsOut: true,
			canEdit:false,
	    canAcceptDroppedRecords: true,
			showAllRecords:true,
	    dragDataAction: "move"

})

isc.VLayout.create({
    members:[
        countryList,
				countryOutList
    ],
   ID:"mainLayout",
		width:"70%",
		height:525,
		position: "relative",
   autoDraw: true
})
    Without the local datasources, there is no problem with grouped dragging from one listgrid to the other:

    Code:
    isc.setAutoDraw(false);

countryData = [
{
    continent:"North America",
    countryName:"United States",
    countryCode:"US",
    area:9631420,
    population:298444215,
    gdp:12360.0,
    independence:new Date(1776,6,4),
    government:"federal republic",
    government_desc:2,
    capital:"Washington, DC",
    member_g8:true,
    article:"http://en.wikipedia.org/wiki/United_states"
},
{
    continent:"Asia",
    countryName:"China",
    countryCode:"CH",
    area:9596960,
    population:1313973713,
    gdp:8859.0,
    government:"Communist state",
    government_desc:0,
    capital:"Beijing",
    member_g8:false,
    article:"http://en.wikipedia.org/wiki/China"
},
{
    continent:"Asia",
    countryName:"Japan",
    countryCode:"JA",
    area:377835,
    population:127463611,
    gdp:4018.0,
    government:"constitutional monarchy with parliamentary government",
    government_desc:1,
    capital:"Tokyo",
    member_g8:true,
    article:"http://en.wikipedia.org/wiki/Japan"
}
]

isc.ListGrid.create({
    ID: "countryList",
    width:500, height:224, alternateRecordStyles:true, showAllRecords:true,
    fields:[
        {name:"countryCode", title:"Code",primaryKey:true},
        {name:"countryName", title:"Country"},
        {name:"capital", title:"Capital"}
    ],
		data:countryData,
	    canDragRecordsOut: true,
			canEdit:false,
	    canAcceptDroppedRecords: true,
			showAllRecords:true,
	    dragDataAction: "move"

})

isc.ListGrid.create({
    ID: "countryOutList",
    width:500, height:224, alternateRecordStyles:true, showAllRecords:true,
    fields:[
        {name:"countryCode", title:"Code",primaryKey:true},
        {name:"countryName", title:"Country"},
        {name:"capital", title:"Capital"}
    ],
    canDragRecordsOut: true,
		canEdit:false,
    canAcceptDroppedRecords: true,
		showAllRecords:true,
    dragDataAction: "move"

})

isc.VLayout.create({
    members:[
        countryList,
				countryOutList
    ],
   ID:"mainLayout",
		width:"70%",
		height:525,
		position: "relative",
   autoDraw: true
})
    Tags: None
    #2
    As a further observation, using the second example of ListGrids without a localDatasource binding, when you do:

    Code:
    countryOutList.data
    If you have grouped the bottom ListGrid, you get a Tree returned whereas if you haven't grouped it, you get a simple array of record objects.

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