Hey everyone,

I am having Entity Framework Serialization Circular reference problems when attempting to bind to my Kendo UI grid. I found the documentation about how to deal with it here:

http://docs.telerik.com/kendo-ui/getting-started/using-kendo-with/aspnet-mvc/helpers/grid/troubleshooting

Which led me to here:

http://docs.telerik.com/kendo-ui/getting-started/using-kendo-with/aspnet-mvc/helpers/grid/faq#how-do-i-avoid-circular-reference-exceptions?

I have now implemented that change on my controller and am passing an anonymous type collection to my view. However now at runtime, when I try to look at my page, it immediately throws an Exception stating

"CS1660: Cannot convert lambda expression to type 'string' because it is not a delegate type"

Below is a snippet from my grid and controller. Property3 is the one it is complaining about, which is the one I am using to bypass the object in my anonymous type collection.


The JSON is built up like the following:               

  var collection = result.ToDataSourceResult(request, c => new
                {
                       Property1 = c.Property1
                       Property2 = c.Property2
                       Property3 = c.EntityFrameworkObject.Property3
                       Property4 = c.Property4
                });               

return Json(collection, JsonRequestBehavior.AllowGet);



@(Html.Kendo().Grid<My.Namespace.To.My.EntityObject>()
.Name("grid")
.Columns(columns =>
{
columns.Bound(p => p.Property1);
columns.Bound(p => p.Property2).Width(100);
columns.Bound(p => p.Property3).Width(100);
columns.Bound(p => p.Property4.Width(100);
columns.Command(command => { command.Edit(); }).Width(160);
})

As far as I can tell, this follows the example given. Why am I getting this "CS1660: Cannot convert lambda expression to type 'string' because it is not a delegate type" error and what do I need to do to get rid of it?

The only other thing I can think of is to remove the "My.Namespace.To.My.EntityObject, because there is no "Property3" on that object, however the compiler complains if I don't specify a type in the <> . 

I am at a loss of how to move forward here.  

Hey everyone

I have a Kendo grid set up with ".Editable(editable => editable.Mode(GridEditMode.PopUp) ) "

When I click the edit button in the grid , the screen pops up as normal. Properties are set correctly, however when I alter a property and save, I get the error below.

0x800a138f - Microsoft JScript runtime error: Unable to get value of the property 'data': object is null or undefined

This error is happening in the "Kendo.all.js" file. Here is the relevent javascript:

setup: function(options, type) {
options = options || {};

var that = this,
parameters,
----------------------------------------------------------------------------------------------------------------------------------------------------------
operation = that.options[type], //**** the operation gets set to 'Undefined' by this line and fails on the line below. *****/
-----------------------------------------------------------------------------------------------------------------------------------------------------------
data = isFunction(operation.data) ? operation.data(options.data) : operation.data;

options = extend(true, {}, operation, options);
parameters = extend(true, {}, data, options.data);

options.data = that.parameterMap(parameters, type);

if (isFunction(options.url)) {
options.url = options.url(parameters);
}

return options;
}

What is happening to cause this and how do I resolve it?

Thanks,

Dave

I'm using the new Masked Textbox from Kendo UI for MVC and it actually works fine and binds into model without problems. One feature I didn't get automatically is the ability to press "Enter" key and submit my form.

Other textbox I use (Kendo().AutoComplete()) works fine with the "Enter" key.

@(Html.Kendo().MaskedTextBox()
.Name("PhoneNumber")
.Mask("(999) 000-0000"))

I really don't know How to reset datasouce  with Grid. I searched some materials, and some info said use setDataSource() method. It didn't work. I have no idea. please help me.

    In WebAPI: 
        [HttpDelete]
        [Route("AccountDel")]
        public void DeleteAccount([FromBody]Account account)
        {
...

So I can't call that from a (Or could a put a jquery ajax call in there): 
                    destroy: {
                        type: "DELETE",
                        url: function (options) {
                            return '/api/FlossAccount/AccountDel';
                        },
                        dataType: "json",
                       data:  function (options) {
                            return { '': options.models[0]};
                         },
                        cache: false
                    },  

Whats the minimum browser requirements specifically for IE in order to run Kendo UI smoothly ?

Hi
  http://trykendoui.telerik.com/orod

  As you can see the editor doesn't appear to work on mobile, you can't enter any text and it looks odd.

(1) How can I fix this?
(2) I get the impression that the editor should work on mobile, does it?
(3) Are there any Web controls which don't work on mobile?

Is there any documentation about getting these Web controls to work on mobile or should it in general just work?

thanks

I'm trying to use source binding to an observable array to enable the user to dynamically add new elements as required. My item template has a few hidden fields and a kendo ui editor. The editor is initialized with jQuery in the template. The problem, however, is that the editor is not being initialized properly after the view model has been bound.

I have created a jsBin showing the problem: jsBin

Notice that that editors for the initially-bound items are correctly initialized, but any added elements are not. If I unbind and re-bind the entire view model after each item is added then everything will work, but that seems like serious overkill. Any feedback would be appreciated.

Hello,

the problem is validator is really slow(beacuse i have about 400 radio inputs - 130 radio button groups). Here is the code of the custom rule of the validator:


The best solution would be that validation code breaks when the first validation error is found. But i don't know how to achieve this.
Maybe any other suggestions?

Thanks

Hi,

I have a few windows here: http://jsbin.com/manazohu/1/edit and they are draggable, the problem is that when I dragged the inner windows the outer one moved too. How can I make only the one I dragged move, and others stay still? Thanks.