Android Question indexOf type

[Prosg]

Type Person(guid as string, Name As String, Age As Int)

If i want to search if a guid is already in the list how can i do this ?

i try

if persons.IndexOf(myGuid) <> -1

but it always return -1

ty for help

 

[DonManfred]

IndexOF need a string and the list must be strings.

Write a helper sub which iterats through your list of cusomTYPEs and find the right one...