private static bool ModifyBlockTableRecordField(BlockTableRecord obj, string fieldName, string fieldValue) { using (var tr = CurrentDatabase.TransactionManager.StartTransaction()) { if (!obj.HasFields) { return(false); } var fields = ((Field)tr.GetObject(obj.GetField(), OpenMode.ForRead)).GetChildren(); var requestedField = fields.FirstOrDefault(f => f.Equals(fieldName)); var fieldCode = requestedField.GetFieldCode(FieldCodeFlags.AddMarkers | FieldCodeFlags.FieldCode); var newField = new Field(fieldValue); obj.SetField(fieldCode, newField); tr.Commit(); } return(obj.FieldValueEquals(fieldName, fieldValue)); }