Need Help on SSRS SPLIT function

Hi All I need your advice,

1) I have a dynamic string which changes each time.

for example today the string will be  "ItemA,ItemB,ItemC" and tomorrow it will be "itemA,ItemB" only.

2) I have an SSRS report which has 3 columns

3) I  want to split this string "ItemA,ItemB,ItemC" and want to show splitted substrings in these 3  columns of  ssrs table. the Delimiter is "," (comma)

4) I had used 

                        =Split("ItemA,ItemB,ItemC",",").GetValue(0) in the first column of the report 

                        =Split("ItemA,ItemB,ItemC",",").GetValue(1) in the second column of the report

                        =Split("ItemA,ItemB,ItemC",",").GetValue(2) in the third column of the report

5) everything works fine until my string is "ItemA,ItemB,ItemC" ,

BUT WHEN MY STRING CHANGES TO    "ItemA,ItemB",      then I am seeing "#Error" in the third column.

I understood the error, for   

=Split("ItemA,ItemB,ItemC",",").GetValue(2) we dont have any value because the string now has only 2 values after applying split function

Is there any way i can avoid #Error in the third column. 

NOTE: I have to compulsorily use 3 columns in the ssrs report.

I had tried using =Replace(Split("ItemA,ItemB",",").GetValue(2),"#Error","NULL")  in the third column  but that also wont worked.

Appreciate Your Help,

Raj Vardhan