animate text by letters(TextUnitEffect)

Sir need little help


I have four text box with "fly in from right" animation & text entryeffect = ppEffectFlyFromRight, animate text:By letters.
Now I want to change fly in Animation to Appear & entryeffect = ppEffectAppear.
So I run the code(in text animation.pptm) but after running the code text did not animate by letters,
when I checked effect option-->effect-->animate text it shows delay = 0.


For better understanding please see the code.


Any solution would be appreciated.

Now I configured using "ConvertToTextUnitEffect" method. Works fine.