Hello ,
As per your requirement , there is no need to change data type (text). you want to only show only number in grid .
So please add condition on div visibility or add it in If condition.
If(TextToInteger(personalNo)>0 or TextToLongInteger(personalNo)>0,True,False)
Note : Change data type number if you not allow user to input text.
Thanks
Rahul Jain