title: Add extra column to 2D array
body: <p>I have an array: </p>
  
  <pre><code>char[,] DataFile=new char[310,6720]
  </code></pre>
  
  <p>Now I want to increase the number of columns in DataFile array dynamically, so after increase number of columns it will look like:</p>
  
  <pre><code>char[,] DataFile=new char[310,6726]
  </code></pre>
  
  <p>Is it possible, and if yes then how? I read about the <code>IsFixedSize</code> property but I don't know how to use it.</p>