title: don't display content outside of border wpf
body: <p>I don't want to display content that is outside the border in my wpf application. Here is an image to illustrate better my point:</p>
  
  <p><img src="https://i.stack.imgur.com/LuLIv.png" alt="enter image description here"></p>
  
  <p>in that picture the blue box is the border and note that its child is a listview. I don't want to display the entire listview. I just want to display whatever is inside the blue border.</p>
  
  <p>What control do I have to use in order to achive that? I am looking for some sort of a mask... Is creating a custom user control my only option?</p>