buffer = sr.ReadLine().ToCharArray())!=null

Question

Hi I have a Char buffer = new Char[1024] and i'm using StreamReader sr to read from a NetWorkStream. when launching the app it gives me an error at the end. while((buffer = sr.ReadLine().ToCharArray())!=null) { Console.WriteLine(buffer); } So basically i'm trying to print the information that is i'm receiving through the socket. Please help! Thanx.

bilnaad · Answer

also the line (if it was a valid line of code :) ) buffer = sr.ReadLine().ToCharArray())!=null will only store a boolean value in the buffer variable as a result of the comparison.

shimtanny · Answer

Hi I assume that the code above throws a NullReferenceException. This is because sr.ReadLine() returns null to tell you that the end was reached. So if this happens sr.ReadLine().ToCharArray() will try to access null (with ToCharArray()). And then you get the exception. Try this: string str = null; while((str = sr.ReadLine()) != null) { buffer = str.ToCharArray() Console.WriteLine(buffer); } Now you should have any errors. Simon