foreach (string s in myField.getChilds()) {
if (s == null)
//handle null
else
//handle normal value
}
When I run my program i get a NullReferenceException because getChilds may return null. How can I make my program to continue anyway and handle the exception? I can't handle it outside of the foreach, can't explain why because it will take too much time (and I am sure you guys are busy :P). Any ideas?
I already tryed that way:
foreach (string s in myField.getChilds() ?? new ArrayList(1)) {
if (s == null)
//handle null
else
//handle normal value
}
But it does not work, program just jump at the end of the foreach but I want it to enter the foreach instead!
One way to do this (though not the best way) is:
foreach (string s in myField.getChilds() ?? new string[] { null })
or
foreach (string s in myField.getChilds() ?? new ArrayList { null })
The reason new ArrayList(1)
doesn't work is that it creates a list that has the capacity to hold 1 element, but is still empty. However new string[] { null }
creates a string array with a single element which is just null, which is what you appear to want.