String.split问题

Question

I am kinda new to C#. A problem when using split. I thought it returned a string array. But once it gets to the last line below it crashes and says I cant access it. Out of bounds. Even though in the split it would have found multiple '~'. Any solutions to my problem?

String tempString = " ";

        while ((tempString = streamReader.ReadLine()) != null)
        {
            String [] split = tempString.Split('~');

            typeOfVehicle = split[0];
            manufactuer = split[1];

Thanks very much

Question solved.

Answer 1

You are assuming that when you split the string you will have at least 2 elements. Never assume. Always check the length of the array before you attempt to access an index.

Answer 2

Just catch the exception and you'll soon see that you have a problem with the string you're reading.

String[] split = tempString.Split('~');

try
{
    typeOfVehicle = split[0];
    manufactuer = split[1];
}
catch
{
    Console.WriteLine("Oops! It didn't work.");
    Console.WriteLine("The offending string was \"{0}\"", tempString);
}