Variable uses an Automation type not supported in VBScript

[ellenlanf]

When I using following statement to get data from a grid's cell field, some times it will popup error message as follows:

val = SwfWindow("swfname:=aaa").SwfTable("swfname:=bbb").GetCellData(i, "CCC")


Error message:
Variable uses an Automation type not supported in VBScript.


There are so many columns have this error. How to get data from such field?


Thanks.