title: Representing Numbers in Exponential form
body: <p>I have a requirement to convert the following types of decimal numbers to exponential format </p>
  
  <p>Number <code>0.00001</code>formatted as  <code>0.01E-04</code></p>
  
  <p>I use the following method for this: 
  <code>string.Format("{0:E2}", dValue);</code></p>
  
  <p>But this returns <code>0.01E-004</code></p>
  
  <p>So I need to restrict the number of digits to 2 after the <code>E</code>.
  Is this possible? If so: how ? </p>