/// <summary>
/// Sets up a PagingSpec from OData query string values in a RouteValueDictionary for a request
/// </summary>
/// <param name="rvd">RouteValueDictionary for a request</param>
/// <returns>the resulting PagingSpec</returns>
public static PagingSpec Create(RouteValueDictionary rvd)
{
var spec = new PagingSpec();
int skip = 0;
if (rvd.ContainsKey("$skip"))
int.TryParse((string)rvd["$skip"], out skip);
int take = int.MaxValue;
if (rvd.ContainsKey("$take"))
int.TryParse((string)rvd["$take"], out take);
else if (rvd.ContainsKey("$top"))
int.TryParse((string)rvd["$top"], out take);
if (rvd.ContainsKey("$orderby"))
spec.Sort = (string)rvd["$orderby"];
if (skip != 0 || take != 0 || spec.Sort != null)
{
spec.Skip = skip;
spec.Take = take;
return spec;
}
else
return null;
}
