title: copy character from the string in c#
body: <p>Is there any way available to give start and ending value to the string and string copy all that values in c#
  e.g</p>
  
  <pre><code>My name is testing.
  
  Now i want to copy 'name is'
  </code></pre>
  
  <p>from the string how i can achieve. I don't have any specific length of the string, It could be increase and decrease.</p>