You can enumerate the AssemblyAssociatedContentFile
attributes defined on the assembly :
var resourceUris = Assembly.GetEntryAssembly()
.GetCustomAttributes(typeof(AssemblyAssociatedContentFileAttribute), true)
.Cast<AssemblyAssociatedContentFileAttribute>()
.Select(attr => new Uri(attr.RelativeContentFilePath));
You can also check this page for a way to enumerate BAML resources.
UPDATE : actually the solution above works only for Content files. The method belows returns all resource names (including BAML resources, images, etc) :
public static string[] GetResourceNames()
{
var asm = Assembly.GetEntryAssembly();
string resName = asm.GetName().Name + ".g.resources";
using (var stream = asm.GetManifestResourceStream(resName))
using (var reader = new System.Resources.ResourceReader(stream))
{
return reader.Cast<DictionaryEntry>().Select(entry => (string)entry.Key).ToArray();
}
}