private void SetSourceSortOptions(ISortableDataSource <T> dataSource, ViewContext context)
{
NameValueCollection qs = context.RequestContext.HttpContext.Request.QueryString;
dataSource.SortBy = qs[_columnQueryStringName];
if (String.IsNullOrEmpty(qs[_orderQueryStringName]) == false)
{
dataSource.SortOrder = (SortOrder)Enum.Parse(typeof(SortOrder), qs[_orderQueryStringName]);
}
}
private void SetColumnSortOrder(GridColumn <T> column)
{
ISortableDataSource <T> orderableSource = DataSource as ISortableDataSource <T>;
if (column.SortOptions.IsDefault && String.IsNullOrEmpty(orderableSource.SortBy))
{
orderableSource.SortBy = column.Name;
}
if (String.IsNullOrEmpty(orderableSource.SortBy) == false &&
orderableSource.SortBy.ToLower().Equals(column.Name.ToLower()) &&
orderableSource.SortOrder == SortOrder.Ascending)
{
column.SortOptions.SortOrder = SortOrder.Descending;
}
}
public void Render(IGridModel <T> gridModel, ISortableDataSource <T> dataSource, TextWriter output, ViewContext context)
{
SetSourceSortOptions(dataSource, context);
base.Render(gridModel, dataSource as IEnumerable <T>, output, context);
}
