title: How to fill up datagrid with empty rows
body: <p>I have a datagrid that is bound to an observable collection.</p>
  
  <p>I'd like to achieve a similar thing shown in <a href="https://stackoverflow.com/questions/8254736/fill-up-datagrid-with-empty-rows">this post</a> with my Datagrid but there are additional considerations:</p>
  
  <ol>
  <li>The Datagrid can be resized by the user. Filling the data table with some fixed number of rows does not work for my purposes. </li>
  <li>The scrolling behavior should work properly.</li>
  </ol>
  
  <p>Basically I'm trying to make an error list window that is similar to the one inside Visual Studio.</p>
  
  <p>I'd appreciate any guidelines.</p>