Guid in Querystring is being transformed somehow

Question

I am not sure why this is occuring but here are a few details that may help to find a solution:

• It seems to work correctly on most computers firefox and IE
• It occurs to certain Guids as others work
• We put the firewall in monitor mode and still occurs

This is the line in PageModify.aspx building the query string:

Response.Redirect(string.Format("Editor.aspx?id={0}", pageId,
    CultureInfo.CurrentCulture));

This is the output of the query string when all goes correctly:

https://example.com/Editor.aspx?id=1dfz342b-3a4d-4255-8054-93916324afs6

This is what is viewed in the browser when redirected to Editor.aspx:

https://example.com/Editor.aspx?id=1dfz342b-3a4d-xxxxxxxxxxxxxxx324afs6

Of course we get an invalid guid error when this line runs:

_PageEditId= new Guid(Request.QueryString["id"]);

Has anyone seen this? Could it be IIS settings? Nothing special is being done here and everyone's systems has the same baseline. It occurs to inside and outside customers.

Answer 1

A Guid is a Structure, so you have to parse it when it comes through the querystring as a String:

Guid PageEditId = Guid.Parse(Request.QueryString["id"]); //add null checks or use TryParse