ArgumentOutOfRangeException was unhandled by user code

[asmx126453]

This is the error i Get

Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

It points to this code

      if (!IsPostBack)
            {
                localhost1.dbConnection dbConn = new localhost1.dbConnection();
                NameValueCollection Query = Request.QueryString;
                string[] sQuery = Query.GetValues(0);
                string[] RefRen = Query.GetValues(1);

This is the last error i need to solve to get my compleet application to work again but it all points to 1 webpage and i get different errors if i try different things so i dont now anymore what the best way is pleas somone help me i only need to solve this page error so my copmpleet application works

The error points to line number 5

But if i delete the ! before IsPostBack than it goes to this error almost the same code

            else
            {
                localhost1.dbConnection dbConn = new localhost1.dbConnection();
                NameValueCollection Query = Request.QueryString;
                string[] RefRen = Query.GetValues(1);
                nieuw = dbConn.IsOfferteNieuw(RefRen[0].ToString());

Also the error poitns to line number 5

The weird thing is it only shows the error when i start debuging and that whont work but when i stop debugging the error is not is my Error List at the bottum

[r035198x]

Better check the Count property of your NameValueCollec tion before trying to access elements that are not there.

[asmx126453]

Cud you point me in the right direction of how i can check that i lookd on the internet and tryd myself but i dont now how

[r035198x]

But everything you need is there in my post. Your NameValueCollec tion is called Query. I just told you that it has a Count property which you can use to check if GetValues(n) will succeed or not. For a value n, Count must be >= n+1.

[Plater]

any time you use a blatent index on any type or array or collection, you should alway first check that there are that many items in the array/collection