private static IList GetDataSourceCore(DataContext dataContext, object dataSource, string dataMember)
{
ListBrowser browser = dataContext.GetDataBrowser(dataSource, dataMember, true) as ListBrowser;
if (browser == null)
{
return(null);
}
return(browser.List);
}
public DataGroupInfo(object dataSource, string dataMember, ListBrowser listBrowser, IList list, GroupRowInfo groupRowInfo)
{
if (dataSource == null)
{
throw new ArgumentNullException(nameof(dataSource));
}
if (dataMember == null)
{
throw new ArgumentNullException(nameof(dataMember));
}
ListBrowser = listBrowser;
List = list;
GroupRowInfo = groupRowInfo;
DataSource = dataSource;
DataMember = dataMember;
}
public static GroupRowInfo GetGroupInfo(ListBrowser browser, byte rowGroupLevel, int browserPosition)
{
var listController = (SortedListController)browser.ListController;
var dataController = listController.GetDataController();
// All tests I could come up with indicate that browser position and controller row are the same value.
var r = dataController.GroupInfo.Single(i => i.Level == rowGroupLevel && i.ContainsControllerRow(browserPosition));
/* Has never happened, in production for months.
* var sanityTestIndicesMapper = listController.GetIndicesMapper();
* for (var i = 0; i < r.ChildControllerRowCount; i++)
* if (sanityTestIndicesMapper[r.ChildControllerRow + i] != r.ChildControllerRow + i)
* throw new InvalidOperationException("Sanity check failed on list controller indices mapper.");
*/
return(r);
}
public static GroupRowInfo GetGroupInfo(ListBrowser browser, byte rowGroupLevel, int browserPosition)
{
var listController = (SortedListController)browser.ListController;
var dataController = listController.GetDataController();
// All tests I could come up with indicate that browser position and controller row are the same value.
var r = dataController.GroupInfo.Single(i => i.Level == rowGroupLevel && i.ContainsControllerRow(browserPosition));
/* Has never happened, in production for months.
var sanityTestIndicesMapper = listController.GetIndicesMapper();
for (var i = 0; i < r.ChildControllerRowCount; i++)
if (sanityTestIndicesMapper[r.ChildControllerRow + i] != r.ChildControllerRow + i)
throw new InvalidOperationException("Sanity check failed on list controller indices mapper.");
*/
return r;
}
