Whats wrong with setting nullable double to null?
<blockquote>
  <p><strong>Possible Duplicates:</strong><br>
  <a href="http://stackoverflow.com/questions/2766932/why-cant-i-set-a-nullable-int-to-null-in-a-ternary-if-statement">Why can&#39;t I set a nullable int to null in a ternary if statement?</a><br>
  <a href="http://stackoverflow.com/questions/858080/nullable-types-and-the-ternary-operator-why-wont-this-work">Nullable types and the ternary operator. Why won&#39;t this work?</a>  </p>
</blockquote>



<p>Whats wrong with the below</p>

<pre><code>public double? Progress { get; set; }
Progress = null; // works
Progress = 1; // works
Progress = (1 == 2) ? 0.0 : null; // fails
</code></pre>

<blockquote>
  <p>Type of conditional expression cannot be determined because there is no implicit conversion between 'double' and '&lt;null>'</p>
</blockquote>
