Howto set values for datalist multiselect via ajax?

[bvn]

I want to use datalist for set roles to the user. When I click to the "Roles" button I show the window with datalist:

Code:

$('#button_roles').linkbutton({
					onClick: function () {
						var row = gridUsers.datagrid('getSelected');
						var windowRoles = $('#window_roles').window({
							title: 'Roles of '+row.username
						});
						var listRoles = $('#list_roles').datalist({
							url: baseUrl+'admin/users/rolesrest/userroles',
							textField: 'name',
							valueField: 'id',
							queryParams: {user_id: row.id},
							singleSelect: false,
							lines: true
						});
						windowRoles.window('open');
					}
				});

My restful returns data (as for datagrid) with all roles list. But I need to set selected some roles assigned to the user. What the best way to do it?

Thank you.

[stworthy]

You can call 'selectRow' method to select your specified rows after loading data successfully.

Code:

$('#dl').datalist({
	lines: true,
	onLoadSuccess: function(data){
		$(this).datalist('selectRow', ...);
	}
})

[bvn]

Thank you. It's useful.