/// <inheritdoc />
public dynamic Create(int clauseNumber, FilterType filterType)
{
// Note the dynamic return type. COM Interop requires an object;
// it cannot be the base class, because in that case COM Interop would only expose the base interface.
// There is no way to solve this using MarshalAs as far as I know
// However, we can sort of get away with using the 'dynamic' keyword.
// .Net consumers will still need to cast the type.
if (_filters.Count() == CommenceLimits.MaxFilters)
{
throw new ArgumentOutOfRangeException($"Maximum number of filters in use {CommenceLimits.MaxFilters}.");
}
if (clauseNumber < 1 || clauseNumber > 8)
{
throw new IndexOutOfRangeException($"Invalid clause number detected. Clause number must be between 1 and {CommenceLimits.MaxFilters}");
}
switch (filterType)
{
case FilterType.Field:
ICursorFilterTypeF f = new CursorFilterTypeF(clauseNumber);
_filters.Add(f);
return(f);
case FilterType.ConnectionToCategoryField:
ICursorFilterTypeCTCF ctcf = new CursorFilterTypeCTCF(clauseNumber);
_filters.Add(ctcf);
return(ctcf);
case FilterType.ConnectionToItem:
ICursorFilterTypeCTI cti = new CursorFilterTypeCTI(clauseNumber);
_filters.Add(cti);
return(cti);
case FilterType.ConnectionToCategoryToItem:
ICursorFilterTypeCTCTI ctcti = new CursorFilterTypeCTCTI(clauseNumber);
_filters.Add(ctcti);
return(ctcti);
default:
throw new ArgumentException($"{filterType} does not correspond to a known filter type.");
}
}
