title: how to join 2 dimensional array of string in c#?
body: <p>i have problem:</p>
  
  <pre><code>string[,] a = string[27,27];
  a = bootsrapMinor(data);
  string[,] b = string[27,27];
  b = bootstrapMayor(data);
  
  string[,] c = a + b;
  </code></pre>
  
  <p>the error message is "Operator '+' cannot be applied to operands of type 'string[<em>,</em>]' and 'string[<em>,</em>]'    "</p>
  
  <p>anyone have solutions for my problem in joining 2 dimensional array if string? thanks alot.</p>