I think it would be more helpful if the Kendo UI Documentation is structured similarly to other Telerik Product Documentations where each control (widget) provides a complete overview, visual structure, getting started, and a how-to section (which I'm guessing is a compiled list of frequently asked scenarios).  I'm struggling/spending too much time having to research how to do (what should be) the simplest things with these widgets.  It seems that' I'm having to revert to the Demo's and online threads more than the documentation.. that' can't be good!

That will make web pages load faster
http://developer.yahoo.com/performance/rules.html#js_bottom

Not sure if this problem is specific to the MVC wrappers or not, but right now, you can not access a kendo control from document.ready unless your code is output after the control is rendered.  That is counter intuitive to the way document.ready is generally used - it should not matter where the code lives on the page.  The solution I would like to suggest is to add init events to the controls, so code can be run when the widget loads on the page, without the order of code mattering on the page.  Here is a related support ticket for reference:

http://www.kendoui.com/account/support-tickets/reply-thread.aspx?threadid=611076

The datasource for ComboBox object does not support lambda expressions like ListView (and many other objects). These 'hardcoded' strings are error prone and is causing headaches when altering modelschema's.

DataSource(ds =>
    {
        ds.Custom()
        .Sort(sort => sort.Add("PropertyName").Descending())
        .Transport(tr => 
            tr.Read(read => read.Action("Action", "Controller"}))
        );
    })

This is in reference to the following forum post:

https://www.telerik.com/forums/helper-for-textbox#lpm4Co4Zy0-PHGzJD_E2mA

For consistency in the MVC product, it would be a good idea to expose built-in events such as the "change" event for the generic Html.Kendo().TextBox helper. This is provided for other controls like the DateTimePicker and even NumericTextBox (https://demos.telerik.com/aspnet-mvc/numerictextbox/events) but not for TextBox.

As mentioned in my post, this is not an insurmountable problem. I can do what I need by diving "down" into jQuery, but it would be nice to be consistent.

UI Component name doesn't validate if there are spaces being used, (an expression is used for name). When spaces are used it doesn't work and throws no errors at all in web console or visual studio output window.

For example if we use an Telerik expression (like we did) as part of the name it will break if said expression returns a value with a space. Which in hindsight makes 100% sense. I think it would be beneficial to any developers in the future if there was a layer of validation that would check to see if a UI component name has a space in it which will break the component functionality. 

In the Telerik-example.png I showed what the fields Im searching by are and you can see grid 1 is loading (which is correct and will work when I continue through the process) However grid 2 simply shows/outputs nothing in the grid at all, and the name of the grid is the black underlined field. Which is breaking due to the space being there.

Please consider implementing to have an option in the MultiSelect control to allow duplicate values.

The AutoComplete control can work with duplicates but only with text values and work with string value with a separator(s) defined. 

Please suggest me any control available of kendo UI to display multi level relational database with add,edit and delete exclude Treeview

https://www.pioneeroutsourcing.com : The wind shifted, as long as the company does not try to reduce the cost of growth and efficiency, outsourcing in the current form, will grow to include all the other a variety of business tasks.

In order to use a kendo combobox in an editable kendo grid, you have to bind it to an object with two properties (1 for the value and 1 for the text) - unless you happen to be in the fairly unusual scenario where the value and text are the same.

However, in a standard form, you can only bind a kendo combobox to a primitive type for the value.  There is no way to bind to an object, which is required in the context of a kendo grid. 

So what is required in the grid, is not supported in a standard form.  I don't understand the complexities of why that is, but this inconsistency does not make for a good developer experience.  It results in either creating different EditorTemplates for the two cases, or binding to the generic "object" - which introduces other challenges / issues.  Also - it means there is no good way to post the text back to the server when the kendo combobox is used in a standard form.

See here for more details:
https://www.telerik.com/account/support-tickets/view-ticket?threadid=609934

It would be nice to have an option to supply the Grid control with a default filter operator as shown below.
The current workaround is long and error prone, because you have to redefine the complete list, the default filter has to be on top. So the ordering matters, that is always a bad idea.

Filterable(filterable => filterable
    .DefaultStringOperator(StringOperatorEnum.Contains) 
   )

Many widgets offer functionality to define a template (header, row, toolbar or whatever) by an id, such a way that the id refers to a html section that actually contains the template like:
<script id="idOfSomeTemplate" type="text/x-kendo-template"> 
<!-- template contents --> 
</script> 

I use this a lot because it's easy to use and whenever the widget is part of another widget (common example: a grid part of a tabstrip) Razor /C# won't allow you to do nested inline markup blocks (@<text> </text>). With the above template it's possible to define the tempalte outside the nested inline block.
Now it seems the MVC wrappers don't have the possiblity to do this for the grid toolbar template. 
TLDR:
I would have expected this templateid method:
@(Html..Kendo().Grid<T>() 
.Name("Grid") 
.ToolBar(toolbar => 
{ 
toolbar.TemplateId("idOfSomeTemplate") 
}) 
) 

In Kendo MVC Grid, the column of type Select() will be good if has an option to show/hide the checkbox in specific rows based on an expression. For example:
.Columns(columns =>
            {
                columns.Select().Visible(m => m.ShowSelect);
            })

Where "ShowSelect" is a property of my Model which is bound to the Grid.

support odata v4

Add some demos/samples for using MVC with VB particularly where Lambdas are involved in the C# example which stops them being converted to VB using the online conversion tools.

Please support VB in your MVC Scaffolding

A feature like devexpress MVC "Insert DevExpress MVC Extension" would be a great help preparing an MVC cshtml mark-up with Telerik MVC extensions.

Make the TreeList wrappers support the same functionality as the Kendo UI TreeList.  Make the method Height support also string values

Currently for the Window and Tooltip controls (possibly others, but those are the ones that I'm working with), the Height and Width properties are both integer properties which set the height and width in pixels.  I would like the ability to be able to enter Height and Width in 'em' units, much like can be done with the grid column widths. 

Hi Telerik Team:

I have some suggestions

1.- Add Scafolding for TreeList UI for ASP.NET MVC 
2.- Add Cell Edit with template for TreeList UI for ASP.NET MVC

Thanks