title: Kendo MVVM and binding or extending custom events
body: <p>I have a ComboBox in my page and I want to bind keypress event to my Kendo ComboBox when the cliend writes down any letter.</p>
  
  <p>As I understand kendo doesn't have any keypress event on ComboBox.</p>
  
  <p>I've found that kendo has something like this to bind values and functions: </p>
  
  <pre><code>kendo.data.binders.slide = kendo.data.Binder.extend({
          refresh: function () {
              var value = this.bindings["slide"].get();
  
              if (value) {
                  $(this.element).slideDown();
              } else {
                  $(this.element).slideUp();
              }
          }
      });
  </code></pre>
  
  <h2>Source: <a href="http://demos.kendoui.com/web/mvvm/custom.html">Click Here</a></h2>
  
  <p>But the problem is I can't workaround that and make it to trigger keypress event on the InputBox in the KendoComboBox control.</p>
  
  <p>Remember that I'm using MVVM and I don't want to use somthing like $('k-input').keypress(...); I want to actually add something in my kendo framework by manipulating the extend method that kendo provided for us.</p>
  
  <p>Thank you in advance.</p>