Converting VbScript functions (Right, Len, IsNumeric, CInt) in C#

Question

Again, I have got below code in VbScript, can you please suggest what will be equivalent code in C#.

Function GetNavID(Tit         


        

Answer 1

if (NavigationId.StartsWith("S"))
{
    NavigationId = NavigationId.TrimStart("S");
    int temp = 0;
    if (int.TryParse(NavigationId, out temp))
    {
        if (temp > 0)
        {
            //Do something
        }     
    } 
}