New to Telerik UI for ASP.NET Core? Download free 30-day trial

2020 Releases

Telerik UI for ASP.NET Core R3 2020 SP1


Changed appearance in Less-based themes of the Upload action buttons that are rendered when the Async.AutoUpload option is set to false.

Reverting to the previous appearance is possible by utilizing the following styles:

.k-upload .k-action-buttons {
    padding: 0;
    align-items: stretch;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
    border-width: 1px 0 0;
    border-top-width: 1px;
    border-style: solid;
    display: flex;
    flex-direction: row;
    flex-shrink: 0;
    flex-basis: auto;
    overflow: hidden;
    border-color: transparent;

.k-upload .k-action-buttons .k-button {
    background-clip: border-box;
    border-radius: 0;
    margin: 0;
    padding: 12px 16px;
    border-width: 0;
    text-overflow: ellipsis;
    flex: 1 0 0%;
    flex-grow: 1;
    flex-grow: 1;
    display: inline-block;
    overflow: hidden;
    width: auto;
    max-width: 100%;

    .Async(a => a
        .Save("Async_Save", "Upload")
        .Remove("Async_Remove", "Upload")

Telerik UI for ASP.NET Core R3 2020


Deprecated configuration options and methods:

Old configuration/method New configuration/method
Appearance(string value) Shape(Kendo.Mvc.UI.BadgeShape)
BadgeStyle(Kendo.Mvc.UI.BadgeFill) Fill(Kendo.Mvc.UI.BadgeFill)
Color(Kendo.Mvc.UI.BadgeColor) ThemeColor(Kendo.Mvc.UI.BadgeColor)
Look(string value) Fill(Kendo.Mvc.UI.BadgeFill)
Overlay(bool value) use Position(BadgePosition.Edge) and Align(BadgeAlign.TopEnd)
Placement(Kendo.Mvc.UI.BadgePlacement) Position(Kendo.Mvc.UI.BadgePosition)
Position(Kendo.Mvc.UI.BadgePosition) Align(Kendo.Mvc.UI.BadgeAlign)
Value(string value) Text(string value)Text(double value)
client-side API methodvalue() client-side API methodtext()


As of the Kendo UI 2020 R3 release, the Telerik UI for ASP.NET Core Scheduler RecurrenceEditor will be rendered as a ButtonGroup and not a DropDownList. Apart from that, in the Weekly recurrence view the days selection is also displayed as a ButtonGroup instead of checkboxes.

Telerik UI for ASP.NET Core R2 2020


As of the Kendo UI R2 2020 release, the Telerik UI for ASP.NET Core TextBox is a component, not a plain styled input. As a result, the following changes were made:

  • A wrapping <span> element is added to facilitate the new floating labels functionality.

  • The Format configuration is removed. This configuration was setting the initial format of the TextBox. After the R2 2020 release, if you need to change the initial format, use code similar to:

    .HtmlAttributes(new { @Value = String.Format("{0:C}", 2500) })
In this article
Not finding the help you need? Improve this article