Archive for posts dated '06 June 2008'

1. June 2008

   1. Making Request.QueryString writable (by clone/copy)

      Posted on 06/06/2008. Estimated read time: under a minute (102 words)

      Every now and then I completely forget that the Request.QueryString (and Request.Form) object is read-only. Today I had a bit of functionality where I needed to remove a key/value from the collection - but the Remove() method (of the NameValueCollection object) throws an exception. Unfortunately, the Request.QueryString's CopyTo method assigns the values to an ARRAY, not a NameValueCollection - losing functionality and flexibility. You need to copy the Request.QueryString object to a new NameValueCollection instance,…

      Tags: ASP.NET, C#, code, QueryString, snippet

   2. How to convert NameValueCollection to a (Query) String

      Posted on 06/06/2008. Estimated read time: under a minute (132 words)

      Most ASP.NET developers know that you can get a key/value pair string from the Request.QueryString object (via the .ToString() method). However that functionality isn't the same for a generic NameValueCollection object (of which Request.QueryString is derived from). So how do you take a NameValueCollection object and get a nicely formatted key/value pair string? (i.e. "key1=value1&key2=value2") ... Here's a method I wrote a while ago: /// <summary> /// Constructs a QueryString (string). /// Consider this method…

      Tags: ASP.NET, C#, code, QueryString, snippet

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