public virtual int sp_creatediagram(string diagramname, Nullable<int> owner_id, Nullable<int> version, byte[] definition)
{
var diagramnameParameter = diagramname != null ?
new ObjectParameter("diagramname", diagramname) :
new ObjectParameter("diagramname", typeof(string));
var owner_idParameter = owner_id.HasValue ?
new ObjectParameter("owner_id", owner_id) :
new ObjectParameter("owner_id", typeof(int));
var versionParameter = version.HasValue ?
new ObjectParameter("version", version) :
new ObjectParameter("version", typeof(int));
var definitionParameter = definition != null ?
new ObjectParameter("definition", definition) :
new ObjectParameter("definition", typeof(byte[]));
return ((IObjectContextAdapter)this).ObjectContext.ExecuteFunction("sp_creatediagram", diagramnameParameter, owner_idParameter, versionParameter, definitionParameter);
}