title: Regex to allow certain special characters along with brakets
body: <p>I am working on asp.net, and having many strings for which i have to allow Alphanumeric and some special characters like ->
  _ - [ ] ( ) { } , .
  I am using regex like </p>
  
  <pre><code>Regex name = new Regex("(a-zA-Z0-9 _ \[ \] \) \( \{ \} \-)*");
  </code></pre>
  
  <p>its not working for me. Can any one suggest the valid regex.</p>