The callback function receives two parameters:

• value
  The text that was entered

• editable
  An instance of the editable object for the element. You can use the origText,enteredText and origHtml properties to determine whether you need to update the control. You can also call update() or abort()
  

When the callback handler is called the text entry control is still active and has not been relieved. The return value from the callback determines the action that is taken for setting the text of the edited element:

• true
  Update the element with the entered text.

• false
  Restore the original text.

• null
  Leave the control in edit mode.
  

An example of a callback function that delays updating until an AJAX callback returns, looks like this:

function ShowUpdateColumn(value, editable)
{            
   if (editable.origText == editable.enteredText)
   {
      showMessage(column + " not updated. Same value.");
      return false; // leave original
   }
   showMessage("updating on server...");

   // *** Figure out the column name by 'convention' of classname for element
   var column = editable.jcol.attr("class");       
   
   // *** Get the Row Pk from Row's ID: gridname_Pk
   var pk = editable.jcol[0].parentNode.id.split("_")[1];               
                    
   // *** Make AJAX call to server method with wwWebCallbackMethod 
   // *** Proxy is the static var based on the control's ID.      
   Proxy.callMethod("UpdateField",[value,column,pk],updateField_Callback);

   // *** Create expando property with the editable class so we can
   // *** pick it up in the callback and complete the edit/abort cycle
   Proxy.lastEditable = editable;
            
    // *** Return null to keep from updating field
    // *** We'll update - or abort - in the callback
    return null;                     
}
function updateField_Callback(result, proxy)
{        
    var editable = proxy.lastEditable;
    
    if (!result)
    {
       editable.abort();
       showMessage("Request aborted on the server.");
       return;
    }
       
    showMessage("Server Update:  " + result);
    
    // *** Manually update the control
    editable.update();
    editable.nextColumn();
}

o.wwEditable.callback                                                       

See also: