Question

i hope this is a simple question!

in the following code all is well if the element exists but if not it errors out.
XDocument xmldoc = new XDocument();

        xmldoc = XDocument.Parse(response);


        XElement errorNode = xmldoc.Root.Element("TransactionErrorCode").Element("Code");

How can i test to see if it exists so it doesnt trow an error?

Answer 1

Were you getting a NullReferenceException?

Test to see if the first element exists before you try to work with it:

var transactionErrorCode = xmldoc.Root.Element("TransactionErrorCode");
if(transactionErrorCode != null)
{
    var code= transactionErrorCode .Element("Code");
}