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. 

The existing solution was built in 2009 using .Net 3.5 web forms framework (List View), ASP.Net Ajax (Accordion) and JQuery (validation). 

The web page accomplishes the following key functional requirements –

a.	Ability to group products – The groups are dynamically extracted from the same datasource that is providing the product list.  Using ASP.Net Ajax we were able to provide the expand / collapse visual effect.

b.	Ability to enter order quantities very quickly -  a lot of stores place orders at the last minute  (5-10 minutes before order deadline) for valid reasons.  The web page readily provides a text box for quick entry.  On a desktop, the user can traverse the rows within the group using the tab key.   The web page typically contains 150 –  200 products for entry.  

Having to click on Edit/Update/Cancel dramatically increases the number of clicks / touch / swipe.  Besides, it creates a real estate issue on smaller form factors.  

c.	Real time validation – using JQuery we were able to validate the row as and when the quantity was entered.  Any error would show below the row in question.  The error would continue to show until the quantity was revised.  The error however, will not stop the user from entering quantities on other rows.  This approach lets the user review any errors in the end.

Customer wise live chat support required 

ToDataSourceResult is very very slow on Large datasets - getting the Total Count is the issue, have an option to omit the total count or provide a way to inject the total count with some more efficient code.

I am using kendo chart with dynamic series with dynamic legend name.If i want to click on one legend item its getting hidden.but if i am going to a another page it is not hidden again it is refreshed .
I want to store these legend items throughout all the pages as hidden.Please send me a solution to achieve this kind of scenario

If you change the dataSource to a grid (for example by changing the filter conditions) so that less data is returned, you will not be warned if the current page is no longer valid. No error is reported and no data is returned and you won't have a clue why.

Try this to replicate:

Make a paged grid plus a couple of datepickers to filter the grid data by date range. Add a button to make the new filter dates effective.

Write a new MVC controller method to populate the data, using the ToDataSourceResult extension method e.g. "return Json(obj.ToDataSourceResult(request));" to return data.

Open a sizeable dataset in the grid (many pages) and go to the last page.

Change the filter conditions to be much more restrictive. Click the button to make them effective.

Watch as the grid displays no data, the code reports no error and stepping into your controller confirms that the method is returning data.

Confusing huh? An error or warning would make this much clearer.

Static property requires null instance, non-static property requires non-null instance.
Parameter name: expression

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.ArgumentException: Static property requires null instance, non-static property requires non-null instance.
Parameter name: expression

[ArgumentException: Static property requires null instance, non-static property requires non-null instance.
Parameter name: expression]
   System.Linq.Expressions.Expression.Property(Expression expression, PropertyInfo property) +4376691
   System.Linq.Expressions.Expression.MakeMemberAccess(Expression expression, MemberInfo member) +90
   Kendo.Mvc.Infrastructure.Implementation.Expressions.MemberAccessTokenExtensions.CreateMemberAccessExpression(IMemberAccessToken token, Expression instance) +122
   Kendo.Mvc.Infrastructure.Implementation.Expressions.ExpressionFactory.MakeMemberAccess(Expression instance, String memberName) +107
   Kendo.Mvc.Infrastructure.Implementation.Expressions.PropertyAccessExpressionBuilder.CreateMemberAccessExpression() +70
   Kendo.Mvc.Infrastructure.Implementation.Expressions.MemberAccessExpressionBuilderBase.CreateLambdaExpression() +17
   Kendo.Mvc.Infrastructure.Implementation.SortDescriptorCollectionExpressionBuilder.Sort() +120
   Kendo.Mvc.Extensions.QueryableExtensions.CreateDataSourceResult(IQueryable queryable, DataSourceRequest request, ModelStateDictionary modelState, Func`2 selector) +888
   Kendo.Mvc.Extensions.QueryableExtensions.ToDataSourceResult(IQueryable`1 enumerable, DataSourceRequest request, Func`2 selector) +58

Please support VB in your MVC Scaffolding

I think it would be more useful to scroll to the first scheduled event on the day view rather than show an empty morning if there are only scheduled events in the afternoon. The month view does not show times, so when a day view is selected the user expects to see their meetings rather than having to scroll down to the first event. 

With the current version available from the DLL it will be possible to simplify bundling and include of CSS and JS files. I currently do something along the lines of

    //BundleConfig.cs
        var version = typeof(Kendo.Mvc.UrlGenerator).Assembly.GetName().Version;
        var kendoVersion = string.Format("{0}.{1}.{2}", version.Major, version.Minor, version.Build);
 
 
        bundles.Add(new StyleBundle("~/Content/kendo/"+kendoVersion+"/css").Include(
            "~/Content/kendo/"+kendoVersion+"/kendo.common.min.css",
            "~/Content/kendo/"+kendoVersion+"/kendo.default.min.css"
            ));
 
        bundles.Add(new ScriptBundle("~/Scripts/kendo/" +  kendoVersion +"/scripts").Include(
            "~/Scripts/kendo/" + kendoVersion + "/kendo.all.min.js",
            "~/Scripts/kendo/" + kendoVersion + "/kendo.aspnetmvc.min.js",
            "~/Scripts/kendo/" + kendoVersion + "/cultures/kendo.culture.en-GB.min.js"
            ));

And similarly in the views. Getting the version directly from the DLL without hacking around in Assembly.GetName.Version and string manipulation will make this clearer. I'd also suggest you update the documentation to reflect this pattern.

As its a new method/getter, it is not a breaking change.

Today, when we use IEnumerable<dynamic> type as the model for the kendo grid, the grid is generated fine, but the javascript serialization fails when we pass the datasource to the GridBuilder constructor.
This results in empty grid client side, because the datasource is empty, even if the html initially generated contains the values.

This behavior comes from a problem with the JavaScriptSerializer (also present in the JSon() function of MVC)

Wp10

In a treeview we have different model classes merged into a single model for consumption by the treeview. For example, an organization model and a person model. Based upon an attribute in the treeview model, we would like to present different templates. These templates would be set back on the server-side as the templates are stored in a database. The templates are designed by the end-users.

Thus, when an organization row appears in the treeview, it uses the orgTemplate, and when the persons under the organization appear, they use the personTemplate.

in the option from Grid this feature is missing

Add the ability to display aggregates of non grouped columns in the group header.

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.

If I have a field defined as @Html.Kendo().TextBoxFor(m => m.Customer.CustomerNumber) then my complex property in my model will be correctly used. If however if add a name value i.e. @Html.Kendo().TextBoxFor(m => m.Customer.CustomerNumber).Name("CustNum") so that I can reference this field in javascript then this name takes precendence as the property name and as such the property in my model is not used. If we are using the 'For' version of an input field where we have already identified the property can this take precedence over using the Name field. That way we can simple names for use in the Javascript and yet still use complex properties.

Your HTML Helpers generate fairly simple HTML and javascript ... but its not easy to read because it is somewhat minified (at least it has no indentation). It would be nice to set a flag somewhere to enable a pretty print option. I assume you have something like that internally anyway?

Kendo UI MVC server-side wrappers are much more easier to work with but not possible to do a full SPA application and UI experience is slow.

Can you come with an idea to allow development using server-side wrappers but then deploy application as client-side SPA converting  server-side wrappers to client-side SPA code?

Please add support for your own ORM in the MVC scaffolding.