private IEnumerable <CompletionData> GetElementNamesInPropertyContext(ControlPropertyMetadata controlProperty)
{
IEnumerable <CompletionData> filteredControls;
if (CheckType(controlProperty.Type, typeof(ITemplate)))
{
// all controls can appear in a template
filteredControls = metadata.Select(c => new CompletionData(c.Key, c.Key));
}
else
{
// resolve element type
var iEnumerable = CompletionHelper.FindIEnumerableType(controlProperty.Type);
var elementType = iEnumerable != null ? iEnumerable.TypeArguments[0] : controlProperty.Type;
// filter the allControls collection
var filteredControlMetadata = metadata.Where(m => CompletionHelper.IsAssignable(m.Value.Type, elementType));
filteredControls = filteredControlMetadata.Select(c => new CompletionData(c.Key, c.Key));
}
return(filteredControls);
}