Can we add Site Column to All Content Types?

Question

Like OOB,

Can we add Site Column to All Content Types using server object model?

Thanks

Answer 1

Try This

   SPList currentList = currentWeb.Lists["DocLib"];
   SPField newField = currentList.Fields.CreateNewField(SPFieldType.Text.ToString(), "New Field2");
   currentList.Fields.AddFieldAsXml(newField.SchemaXml, true, SPAddFieldOptions.AddToAllContentTypes);
   currentList.Update();