Cannot bind value to grid selection if multiSelect is true

1. 
   

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2. 
   
   
   

   
   

   
   

   Cannot bind value to grid selection if multiSelect is true

   
   

   
   

   Cannot bind value to grid selection if multiSelect is true

   
   
   
   

   
   

   Ext version tested:
   

   Browser versions tested against:

   
   

   
   
   • Firefox 28
   
   
   • Chrome 34.0.1847.116
   
   

   
   

   Description:
   
   If you set multiSelect to true on a grid panel, you cannot bind a value to gridPanel.selection.

   
   

   Steps to reproduce the problem:
   
   Here is a fiddle that demonstrates the bug: http://ift.tt/1pzFYf3

   
   

   The result that was expected:
   
   Button should be enabled when a selection is made on the grid.

   
   

   The result that occurs instead:
   
   The button is not enabled.

   
   

   
   

   
   

   
   

   
   

   
   
   
   

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