$(document).ready(function () { 
      var dataSource = kendo.data.DataSource({             
        transport: {                 
            read: {                     
                url: '@Url.Action("GetAll", "Company")',                     
                dataType:"json"                
            },             
            schema: {                 
                data: "Companies",                 
                total: "TotalCount",                
                model: {                                      
                    id: 'CompanyID',                     
                    fields: {                         
                        CompanyID:{                             
                            type: 'number',                             
                            nullable: true,                             
                            editable:false                         
                        },                         
                        Name:{                                              
                            type: 'string'                         
                        },                         
                        Rif:{                                              
                            type: 'string'                           
                        },                         
                        Telephone:{                             
                            type: 'string'                         
                        },                         
                        FisicalAddress:{                                             
                            type: 'string'                         
                        }                     
                    }               
                }             
            },             
            pageSize: 1         
        });         

        $("#grid").kendoGrid({             
            dataSource: dataSource,             
            height: 250,             
            scrollable: true,             
            sortable: true,             
            filterable: true,             
            pageable: {                 
            input: false,                 
            numeric: true             
          },             
            columns: [ { field: "CompanyID",  title: "#",  width: 150 },
                       { field: "Name", title: "Name", width: 150   },                            
                       { field: "Rif", width: 150 },
                       { field: "Telephone", title: "Telephone"},
                       {  field: "FisicalAddress", width: 300 }]
    });
});

and this is my code in server side:

public JsonResult GetAll(
{            
    var companies = _companyService.GetAll().Select(c => new { c.CompanyID, c.Name, c.Rif, c.Telephone, c.FiscalAddress});
     return Json(new { Companies = companies, TotalCount = companies.Count()},JsonRequestBehavior.AllowGet);
}


Error description in file kendo.web.min.js or kendo.data.min.js

Microsoft JScript runtime error: Object doesn't support property or method '_observe'



Any idea what may be happening? Thank you for help

1. Selection Tool
2. Zoom In/Out in the selected area from the chart
3. Drag the area (like in Google Map).

1. Don't provide anything, just let Kendo build the message using the input element's 'name' attribute.  This is sub-optimal because the 'name' attribute doesn't allow spaces in it and 'customerNumber1 is required' doesn't look good.
2. Specify a 'title' on the input.  This is a start but kendo uses _only_ the 'title' attribute value for all validation messages.  This is again sub-optimal when the input may become invalid for multiple reasons (required, min/max values, incorrect format, etc).  Try putting '-100' the second field to see what I mean.
3. Put a 'validationMessage' attribute on the input.  As far as I can tell this is identical to doing #2.  So it has the same shortcomings.
4. Add custom data-{rule}-msg attributes for each type of validation you  might have on the attribute.  This solves the problem at the cost of making more verbose HTML.  Now I have to put a custom validation message on each HTML input form for each validation rule I have.