Hello. I'd like to know how to implement virtual scrolling for my ComboBox. I'm using OData for ComboBox's DataSource.

I've tried to use the example (https://demos.telerik.com/kendo-ui/combobox/virtualization) - however i'm stuck. I don't know how to implement a Value Mapper in my WebAPI. In this example it's easy to get the index of some value, which is not loaded yet, because there are no any filters/​ordering ​there. But in my case, i'm using the same OData method for different DataSources, but with different filters/ordering.

So, how can i get the index of some value, if i don't know which filter/ordering was used for the DataSource? 

I am using JSON as local data for 3 cascading dropdownlists – the JSON is hierarchical by group->category->subcategory. The JSON looks like this (neat and hierarchical):

Then I attempt to cascade the dropdowns. I populate the group dropdown correctly, but just don’t see how to filter the category and subcategory dropdowns based on the dropDown that’s being cascaded from. I'm such a newb.

I am working on a C# MVC (5.2.2) App using Kendo.MVC 2015.3.930.545 (VS 2013 .NET 4.5.1) 

Obviously I would like to be able to refresh/update the scheduler when changing the date(s).  I am not using the JSON-based functions as the demos use.  For my other Telerik controls, the same holds true.  That is, I use plain/vanilla server calls to the server instead.  I do capture some events using JS and do make AJAX calls to refresh data where/when applicable.  I would like to use this approach for the Scheduler but I need help w/this control.

In this case, I would like to know how I can capture the change of dates.  I am not able to use the "Navigate" event nor .Data() for the .DataSource's .Read() method in my code (am I missing some lib? dll?):

Here is my Scheduler control in my .cshtml file:

@(Html.Kendo().Scheduler<EPIMS.Models.TaskViewModel>()
    .Name("scheduler")
    .Date(System.DateTime.Today)
    .StartTime(new DateTime(System.DateTime.Now.Year,System.DateTime.Now.Month,System.DateTime.Now.Day, 5, 00, 00))
    .Height(600)
    .Views(views =>
    {
        views.DayView(dayView => dayView.Selected(true));
        views.WorkWeekView();
        views.WeekView();
        views.MonthView();
    })
    .Timezone("Etc/UTC")
    .DataSource(d => d
        .ServerOperation(true)
        .Read("Details", "Inspections").Data()
        //.Read(read => read.Action("Details", "Inspections"))
        .Create("Create", "Inspections")
        .Destroy("Deactivate", "Inspections")
        .Update("Edit", "Inspections")
        .Events(e => 
        {
            e.Change("schedulerChange");
            e.Navigate
        })
    )
    .BindTo(Model)
)

 The "Navigate" event is not available nor is the .Data() item for the .Read() method (for DataSource).

I get this error @ runtime for the .Data() item:

Compiler Error Message: CS1061: 'Kendo.Mvc.UI.Fluent.SchedulerAjaxDataSourceBuilder<EPIMS.Models.TaskViewModel>' does not contain a definition for 'Data' and no extension method 'Data' accepting a first argument of type 'Kendo.Mvc.UI.Fluent.SchedulerAjaxDataSourceBuilder<EPIMS.Models.TaskViewModel>' could be found (are you missing a using directive or an assembly reference?)

and this error @ runtime for the e.Navigate event:

Compiler Error Message: CS1061: 'Kendo.Mvc.UI.Fluent.DataSourceEventBuilder' does not contain a definition for 'Navigate' and no extension method 'Navigate' accepting a first argument of type 'Kendo.Mvc.UI.Fluent.DataSourceEventBuilder' could be found (are you missing a using directive or an assembly reference?)

Am I using old API calls?  How can I capture the change of dates?

Thanks,

 ​

Hi,

This is really urgent thing.

i am drawing a scatterLine chart with multi-axis series.I was following your example at http://dojo.telerik.com/oJUyE. My problem is when i have negative(-) values for x-axis, then y-axis will be overlapped. When it has all the x-values with positive values it shows 2 separate y-axis properly. see all-positive-X-values.png image.

But when i have negative x-values, it doesn't show y-axis properly. see with-negative-X-values.png image.

i know there is a property called axisCrossingValue under xAxis, but i still can't use that, because i have 6 different series( that means 6 different y-axis). 

Please guide me how i solve this problem..

Thank you

Hello,

assume we a simple tree with items of type A, B and C. It is not possible to drop C into A. I know how cancel a drop - in drop event, just set valid to false. Is it possible to visualy show the user that he/she cannot drop an item of type C into an item of type A in the drag event? And is it possible to template the drag&drop icon  while dragging it?

Thanks

Hi,

I'm trying to move the zero line up because the series circles are being drawn behind the category, and only half of a circle is being drawn. I need a space between the category section and the zero line.

So far I tried different combinations of min, max, margins and padding but I haven't found a way to easily separate the category axis from the zero line.

Adding a negative min value had no effect.

Thanks in advance!

[{"id":"50344","name":"Jane Doe"},{"id":"50562","name":"John Doe"}]

It is just a list of user names, and their user ids.

I want to grab the "id" field from this data when one of the users are selected from the dropdown list.

Is that possible?

Hello all,

I wasn't sure where to put this as my grids are working...the problem is when I'm trying to pass the data from those grids into an ajax post...they keep coming up with an empty collection.  When I step through the jquery...the switches grid has 124 records and the goldList grid has over 1000, but when I hit the breakpoint in the controller the collections are empty. 

Here's the JQuery

Here's the Controller Action