canReorder on ListGridField seems not working

[sylobiwan]

SmartClient Version: v9.1p_2015-09-16/Pro Development Only (built 2015-09-16)
Any Browser (at least Chrome + Firefox).

Adding canReorder="false" to some of the fields is not working. The user can continue to move the headers of the listGrid. Setting the attribute canReorderFields="false" is working well but what we want is to disable the draggind only on the 2 first columns of our table.

To reproduce the problem, modify the code snippset: http://www.smartclient.com/docs/9.1/...listGridFields

With:
isc.ListGrid.create({
ID: "countryList",
width:500, height:224, alternateRecordStyles:true,
fields:[
{name:"countryCode", title:"Code", canReorder:"false"},
{name:"countryName", title:"Country", canReorder:"false"},
{name:"independence", title:"Nationhood", type:"date", canReorder:"false"},
{name:"population", title:"Population", type:"integer"},
{name:"gdp", title:"GDP", type:"float"}
],
data: countryData
})

[Isomorphic]

Use boolean false, rather than the string "false"

[sylobiwan]

thanks for your reply.
Yes, it's working with the boolean instead of the String in my example. But how I can do it when I want to set this attribute through the datasource.xml file which is used by the listGrid?

[Isomorphic]

canReorder isn't supported at the DataSourceField level - it has no meaning for most UI components. You should enforce it at the grid level, by providing field-definitions which will be automatically combined with DataSource field definitions.