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C#

Retrieve a param from a c# URI object

private static string GetQueryValues(string url, string key)
{
	try
	{
		Uri uri = new Uri(url);
		NameValueCollection nameValueCollection = HttpUtility.ParseQueryString(uri.OriginalString);
		return nameValueCollection[key].ToString();
	}
	catch (Exception ex)
	{
		Trace.Write(ex);
		return null;
	}
}
https://snipt.net/embed/c2ad99e5f2d7b5abdbd7e7fb71bae252/
/raw/c2ad99e5f2d7b5abdbd7e7fb71bae252/
c2ad99e5f2d7b5abdbd7e7fb71bae252
csharp
C#
14
2019-07-23T21:11:27
True
False
False
Jul 17, 2013 at 06:36 AM
/api/public/snipt/68163/
retrieve-a-param-from-a-c-uri-object
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="k">private</span> <span class="k">static</span> <span class="kt">string</span> <span class="nf">GetQueryValues</span><span class="p">(</span><span class="kt">string</span> <span class="n">url</span><span class="p">,</span> <span class="kt">string</span> <span class="n">key</span><span class="p">)</span> </span><span id="L-2"><a name="L-2"></a><span class="p">{</span> </span><span id="L-3"><a name="L-3"></a> <span class="k">try</span> </span><span id="L-4"><a name="L-4"></a> <span class="p">{</span> </span><span id="L-5"><a name="L-5"></a> <span class="n">Uri</span> <span class="n">uri</span> <span class="p">=</span> <span class="k">new</span> <span class="n">Uri</span><span class="p">(</span><span class="n">url</span><span class="p">);</span> </span><span id="L-6"><a name="L-6"></a> <span class="n">NameValueCollection</span> <span class="n">nameValueCollection</span> <span class="p">=</span> <span class="n">HttpUtility</span><span class="p">.</span><span class="n">ParseQueryString</span><span class="p">(</span><span class="n">uri</span><span class="p">.</span><span class="n">OriginalString</span><span class="p">);</span> </span><span id="L-7"><a name="L-7"></a> <span class="k">return</span> <span class="n">nameValueCollection</span><span class="p">[</span><span class="n">key</span><span class="p">].</span><span class="n">ToString</span><span class="p">();</span> </span><span id="L-8"><a name="L-8"></a> <span class="p">}</span> </span><span id="L-9"><a name="L-9"></a> <span class="k">catch</span> <span class="p">(</span><span class="n">Exception</span> <span class="n">ex</span><span class="p">)</span> </span><span id="L-10"><a name="L-10"></a> <span class="p">{</span> </span><span id="L-11"><a name="L-11"></a> <span class="n">Trace</span><span class="p">.</span><span class="n">Write</span><span class="p">(</span><span class="n">ex</span><span class="p">);</span> </span><span id="L-12"><a name="L-12"></a> <span class="k">return</span> <span class="k">null</span><span class="p">;</span> </span><span id="L-13"><a name="L-13"></a> <span class="p">}</span> </span><span id="L-14"><a name="L-14"></a><span class="p">}</span> </span></pre></div> </td></tr></table>