Refreshing a graph displayed by UIView
<p>I have a Tabbar App of which the Root views are UITableviews (different classes).</p>

<p>On one of the UITableviews has a sub class UIView on which I draw a graph with drawRect, but at times the graph is not updated properly and has incorrect/ old information .</p>

<p>How I can refresh the graph on the UIView with eg setNeedsDisplay from external classes?</p>

<p>Will appreciate any input to resolve.</p>
