How to maintain the page url when using query string

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Hello,
I made a page Default.aspx which contains category of books.It contains a edit link. On clicking edit button, it redirects the user to edit.aspx , But i send the id through querystring like edit.aspx?id=5.
Suppose, if user change the id like edit.aspx?id=abc , it gives exception.
Plz help me how to handle the query string.

Posted 10-Dec-13 21:40pm

ssss0001

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shreyanshs · Answer 1 · 2013-12-10T22:05:00

Solution 1

u can do one thing u can encode the url or u can use exception handling

Posted 10-Dec-13 22:05pm

shreyanshs

Karthik_Mahalingam · Answer 2 · 2013-12-10T22:30:00

Hi Try like this.

C#

protected void Page_Load(object sender, EventArgs e)
       {
           if (!IsPostBack)
           {
               string value = Request.QueryString["id"];
               int id = 0;
               if (int.TryParse(value, out id))
               {
                   // value is valid
               }
               else
               {
                   Response.Write("Please dont modify the URL :) ");
               }
           }


       }

You can also try by Encode/Decode the url..

refer : http://msdn.microsoft.com/en-us/library/zttxte6w(v=vs.110).aspx[^]