Problem
Request.QueryString.Remove("foo")
If u r removing just like this will not work. U will get error states that 'collection is read-only'.
Solution
So the solution is, before deleting the querystring u need to write the below code.
In C#,
PropertyInfo isreadonly = typeof(System.Collections.Specialized.NameValueCollection).GetProperty("IsReadOnly", BindingFlags.Instance | BindingFlags.NonPublic);
// make collection editable
isreadonly.SetValue(this.Request.QueryString, false, null);
// remove
this.Request.QueryString.Remove("foo");
In VB,
Dim isreadonly As PropertyInfo = GetType(System.Collections.Specialized.NameValueCollection).GetProperty("IsReadOnly", BindingFlags.Instance Or BindingFlags.NonPublic)
' make collection editable
isreadonly.SetValue(Me.Request.QueryString, False, Nothing)
' remove
Me.Request.QueryString.Remove("foo")
Now try. It will work. have a great day. Enjoy....
