title: How to add value in a public property of List<string> type in c#?
body: <pre><code>private List&lt;string&gt; _Baseline = new List&lt;string&gt;();
  
  public List&lt;string&gt; Baseline 
  {
      get { return _Baseline; }
      set { _Baseline = value; }
  }
  </code></pre>
  
  <p>How can I set this property?
  It does not let me add using the add method; it throws an "object reference null" error. </p>