Adding Field In Table Dynamicially-2013

Hi,

Adding fields in the table, using RTC. On the page i have created a Action Button Tigger have written the following code to add field.

Field_R.MODIFY;

COMMIT;

Field_R.INIT;

Field_R.TableNo := 3;

Field_R.Type := Field_R.Type:: Code;

Field_R.“No.” := 50000;

Field_R.FieldName := ‘note’;

Field_R.Len := 20;

Field_R.Enabled := TRUE;

Field_R.INSERT;

So this code is working in 2009 rtc. but when coming to 2013 it say the “Table 0 does not exist.”.

I could understand what is going wrong in the above code.