public LookupFilteringAttribute(Type lookupType)
: base("Lookup")
{
var attr = lookupType.GetCustomAttribute <LookupScriptAttribute>(false);
if (attr == null)
{
throw new ArgumentOutOfRangeException("lookupType");
}
SetOption("lookupKey", attr.Key ??
LookupScriptAttribute.AutoLookupKeyFor(lookupType));
}