How to get the List of Extensions

As far as I know, there is no built-in method for this in Acumatica. However, if you need to retrieve all existing extensions for a graph, you can implement your own method.

public List<Type> ListExtensionsFor<TGraph>() where TGraph : PXGraph
{
    var extensions = AppDomain.CurrentDomain.GetAssemblies()
        .SelectMany(assembly =>
        {
            try
            {
                return assembly.GetTypes();
            }
            catch (ReflectionTypeLoadException ex)
            {
                return ex.Types.Where(t => t != null);
            }
        })
        .Where(type => type is { IsClass: true, IsAbstract: false })
        .Where(type =>
            type.BaseType != null &&
            type.BaseType.IsGenericType &&
            type.BaseType.GetGenericTypeDefinition() == typeof(PXGraphExtension<>) &&
            type.BaseType.GetGenericArguments().First() == typeof(TGraph))
        .OrderBy(type => type.FullName)
        .ToList();

    return extensions;
}

This method is for retrieving GraphExtension’s, but I don't think it would be too difficult to adapt it for DACs as well.