title: how to use string as a name of Object(TextBlock)?
body: <p>I have 9 textblock named as &quot;_20&quot; or &quot;_21&quot;. I am taking input from textbox and joining them to get the name of required cell. like this:</p>
  <pre><code>var r = Int32.Parse(row.Text)-1;
  var c = Int32.Parse(column.Text)-1;
  var cellValue = ('_' + Convert.ToString(r)+Convert.ToString(c));
  </code></pre>
  <p>Now when I'm doing <code>var cell = (TextBlock) MainWindow (cellValue);</code> to get the specific cell, it is showing error. How should I fix this?</p>