public static TypeaheadResponse <TKey> GetForTypeahead <TItem, TKey>(
this IQueryable <TItem> queryable,
TypeaheadRequest <TKey> request,
Expression <Func <TItem, TypeaheadItem <TKey> > > select,
Expression <Func <TItem, bool> > getById,
Expression <Func <TItem, bool> > getByQuery)
{
if (request.GetByIds)
{
var items = queryable.Where(getById).Select(select).ToList();
return(new TypeaheadResponse <TKey>
{
Items = items,
TotalItemCount = items.Count
});
}
else
{
var items = queryable.Where(getByQuery).Select(select);
return(new TypeaheadResponse <TKey>
{
Items = items.Take(TypeaheadRequest <int> .ItemsPerRequest),
TotalItemCount = items.Count()
});
}
}
public static IEnumerable <object> GetTypeaheadSource <T>(this object source,
MyFormHandler myFormHandler,
TypeaheadRequest <T> request = null)
{
if (source is IEnumerable <object> )
{
return(source.CastTObject <IEnumerable <object> >());
}
if (request != null)
{
var list = new Dictionary <string, object> {
{ "query", request.Query }, { "ids", request.Ids }
};
var obj = JsonConvert.SerializeObject(list);
var dataSource = source.ToString();
var formRequest = new InvokeForm.Request
{
Form = dataSource,
InputFieldValues = obj
};
try
{
var result = Task.Run(
() => myFormHandler.InvokeFormAsync(new[] { formRequest }));
var response = result.Result;
var typeahead = response[0].Data.CastTObject <TypeaheadResponse <object> >();
if (typeahead != null)
{
return(typeahead.Items);
}
}
catch (AggregateException ex)
{
ex.ThrowInnerException();
}
}
return(new List <object>());
}