title: Variable in try catch exception
body: <p>Whats the differenc of using a variable inside the try section and the catch section</p>
  
  <pre><code>string curNamespace;
  
  try
  {
    curNamespace = "name"; // Works fine
  }
  catch (Exception e)
  {
  // Shows use of unassigned local variable  
  throw new Exception("Error reading " + curNamespace, e);
  
  }
  </code></pre>
  
  <p>If i use variable inside try section it compiles fine, in catch section i get "Use of unassigned variable"</p>