title: WPF Sliding Panel
body: <p>I want to make a control which behaves like Blend menu control:</p>
  <p><img src="https://i.stack.imgur.com/31mdE.png" alt="enter image description here" /></p>
  <p>As in Image, Clicking on Assets, A menu would slide out and menu other window side to it would shrink and make space for new sliding menu to reside there. The menu should reside there until any action is performed to slide it back in. (Like I would put a button at same place Cancel button(x) in image ).</p>
  <p>Also should not be like a dock panel to another place as we do with Toolbox with VS on Blend.</p>
  <p>How can I achieve this?</p>