Replace first comma in C#
<p>I am trying to find a way in C# to replace first occurrence of a regular expression in a string.</p>

<p>So if <code>string = ",1,2,3,4,5"</code> I want to do something like</p>

<pre><code>string = replacefirst(",","")
</code></pre>

<p>to always give the result:</p>

<pre><code>string = "1,2,3,4,5"
</code></pre>
