title: How to switch first letters in each word of RichTextBox.Text to upper case?
body: <p>How can I switch the first letter of each word of <code>RichTextBox.Text</code> to upper case?</p>
  
  <p>For example, I need to switch this text:</p>
  
  <pre><code>"This is a big and beautiful dog."
  </code></pre>
  
  <p>To this text:</p>
  
  <pre><code>"This is a Big And Beautiful Dog".
  </code></pre>
  
  <p>That means I need to capitalize the first letter in the words which include three letters or more. It is difficult for me. Also, there are many lines in <code>RichTextBox.Text</code>. </p>