How to set Index to a certain row in a C1FlexGrid using C# for windows mobile device

Question

I want to be able if I decide to put the user to the 2nd row of grid if they try to choose anything other than the first or second row.
Trying to stop users from deciding what row they want to work on. So in example if they select any row other than the first 2 rows I want to set the index to 1 or the second row and highlight that row instead of the row they selected.
Thanks in advance for the help
I come from VB background and struggling with this. I can see what row they actually selected but I can't figure out how to programmatically put it to the second row.