Posted on: 2/25/2014 9:31:02 AM | Views : 548

Hi All,
I have following querystring:
SELID=52d422f2-d2cb-4029-870b-50968cdb2e4a
How can I prevent a client add this to my url:
SELID=52d422f2-d2cb-4029-870b-50968cdb2e4a'%20waitfor%20delay'0%3a0%3a20'--
This really delays execution of my page.
I have already tried this:
if (Request.QueryString["SELID"] != null) { if (!string.IsNullOrEmpty(Request.QueryString["SELID"])) { SELIDPAR = Sanitizer.GetSafeHtmlFragment(Encoder.HtmlEncode(Request.QueryString["SELID"].ToString())); } }

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