public static Task MovePagedDataSetOffset(this IPaginatorController pie, IPagedDataSet pd, int offset)
{
var index = pie.IndexOf(pd);
return(pie.MovePagedDataSet(pd, index != -1 ? index + offset : offset));
}
public static async Task SetFocusPageAtOffset(this IPaginatorController pie, int offset)
{
var ci = pie.IndexOf(await pie.GetCurrentFocusPage());
await(ci != -1 ? pie.SetFocusPageAt(ci + offset) : pie.SetFocusPageAt(offset));
}