I get error
"'Index was outside the bounds of the array"
on this line string Open = array[0].ToString(); when array is empty.
I used "if" statement to see if it can be by-passed when array is empty.
However, why am I still getting this error? How can I by-pass/fix it?
if (array != null || array.Length != 0)
{
int c = array.Count();
string Open = array[0].ToString(); <--- ERROR
}
You used the logical OR operator in your if statement. You should have used the AND operator &&.
OR will evaluate to true if any of the two conditions is true, so your if statement will be run as long as array is not null.
It should be:
if (array != null && array.Length != 0)
This must be
if (array != null && array.Length != 0)
change
if (array != null || array.Length != 0)
to
if (array != null && array.Length != 0)
The IndexOutOfRangeException is a Runtime Exception thrown only at runtime.
According to your question, it seems like you should use check for null and length together as said by others
if (array != null && array.Length != 0)
but because you have not marked any answer as accepted so I must tell you to put your code within try and catch block like below
try
{
if (array != null && array.Length != 0)
{
int c = array.Count();
string Open = array[0].ToString(); <--- ERROR
}
}
catch(Exception ex)
{
// Put breakpoint here and see inner exception by hovering your mouse cursor over ex.
}
You will get more details in inner exception on such issues.
You can check an empty array's length. However, if you try to do that on a null reference you'll get an exception. Here you need && condition which will check for null and array length,
if (array != null && array.Length != 0)
