title: Jqwidget checkbox in grid cell is allways checked even if its value coming from Json is false
body: <p>Jqwidget checkbox in grid cell is allways checked even if its value coming from Json is false inside asp .net mvc3 project.(At database side, I used bit and at server side I used bool type in model definition)</p>
  
  <p><img src="https://i.stack.imgur.com/JPxAL.png" alt="Incoming Json">
  <img src="https://i.stack.imgur.com/7n3rt.png" alt="Resulting Grid"></p>
  
  <p>The source part at client is:</p>
  
  <pre><code>var source = {
              datatype: "json",
              datafields: [{ name: 'KargoId' }, { name: 'Ad' }, { name: 'Soyad' }, { name: 'Urun' }, { name: 'Uygunluk' },
                           { name: 'YuklenmeTarihi', type: 'date' }, { name: 'Adet' }, { name: 'Fiyat'}],
              url: 'BindEditGrid'
          };
  </code></pre>
  
  <p>And column definition for checkbox column is:</p>
  
  <pre><code>{ text: 'Uygun', datafield: 'Uygunluk', columntype: 'checkbox', width: 67 }
  </code></pre>