private bool ValidateSorting <T, TNext>(TestGrid grid, Func <TestModel, T> orderExpression,
string columnName,
GridSortDirection direction,
Func <TestModel, TNext> thenByExpression,
GridSortDirection?thenByDirection)
{
grid.AddQueryParameter(((QueryStringSortSettings)grid.Settings.SortSettings)
.ColumnQueryParameterName, columnName);
grid.AddQueryParameter(((QueryStringSortSettings)grid.Settings.SortSettings)
.DirectionQueryParameterName, direction.ToString("d"));
grid.UpdateGrid().Wait();
IEnumerable <TestModel> resultCollection = grid.GetItemsToDisplay();
IOrderedEnumerable <TestModel> etalonCollection;
switch (direction)
{
case GridSortDirection.Ascending:
etalonCollection = _repo.GetAll().OrderBy(orderExpression);
break;
case GridSortDirection.Descending:
etalonCollection = _repo.GetAll().OrderByDescending(orderExpression);
break;
default:
throw new ArgumentOutOfRangeException("direction");
}
if (thenByExpression != null)
{
switch (thenByDirection)
{
case GridSortDirection.Ascending:
etalonCollection = etalonCollection.ThenBy(thenByExpression);
break;
case GridSortDirection.Descending:
etalonCollection = etalonCollection.ThenByDescending(thenByExpression);
break;
default:
throw new ArgumentOutOfRangeException("thenByDirection");
}
}
if (!ValidateCollectionsTheSame(resultCollection, etalonCollection))
{
return(false);
}
return(true);
}
public override string ToString()
{
return(ColumnName + SortingDataDelimeter + Direction.ToString("D") + SortingDataDelimeter + Id.ToString());
}