title: Number increment from string value
body: <p>I my application due to some reason I have two numbers in 5 digits.</p>
  
  <p>The following code give you brief idea.</p>
  
  <pre><code>string s = "00001"; // Initially stored somewhere.
  //Operation start
  string id = DateTime.Now.ToString("yy") + DateTime.Now.AddYears(-1).ToString("yy") + s;
  //Operation end
  
  //Increment the value of s by 1. i.e 00001 to 00002
  </code></pre>
  
  <p>This can be done easily by convert the value of <strong>s</strong> to int and increment it by 1 but after all that I have to also store the incremented value of s in 5 digit so it will be <strong>"00002"</strong>.</p>
  
  <p>This think give me a pain...</p>