Hello SummerSeaSun,

the property "SelectedID" contains the ID of the datarecord,
which is selected in the control during runtime.
SelectedID = "0": if no valid data set has been selected,
e.g. during the connection error
SelectedID = "-1", if the edit line is selected.

In your script you can use the method "GetSelectedRow"
It returns the selected row object of the table-based
controls as type "ICCAxDataRow".
with a VB-script you can read out the content of the
cells in this row.

see manual:
"WinCC V7.5 SP1 Scripting: VBS, ANSI-C, VBA"
"GetSelectedRow method"

https://support.industry.siemens.com/cs/ww/en/view/109773213/30979576331

Regards

Georg Berghof