Telerik UI for ASP.NET Core R3 2020 (v2020.3.915) Retail
Telerik UI for ASP.NET Core R3 2020 (v2020.3.915) Retail
Cut development time, while delivering rich, powerful, modern websites and apps. Telerik® UI for ASP.NET Core offers 60+ jQuery-based components ranging from must-have HTML helpers for every app like Grids, Dropdowns and Menus to advanced line-of-business controls such as Charts, Gantt, Diagram, Scheduler, PivotGrid and Maps.
Despite the variety of built-in functionality the product offers, we continue to release new functionality based on customer feedback three times a year. Feel free to suggest product ideas for the community to vote on in Telerik feedback portal—the more votes your suggestion receives, the higher priority it becomes to introduce into our roadmap.
Telerik ASP.NET Core components are comprised of Telerik award-winning Kendo UI HTML5/JS widgets and their server-side wrappers for ASP.NET Core. The wrappers generate the jаvascript and HTML required by the Kendo UI widgets enabling you to use C# to configure them. Telerik UI for ASP.NET Core ships the same built-in functionality as Kendo UI, but offers Core-specific features on top, including:
Server-side data binding and in some cases server-side rendering
Support for unobtrusive validation based on Data Annotation attributes
Visual Studio Intellisense for the server-side configuration syntax
Visual Studio Extensions for automatic creation of new applications
Built-in editor templates and more
Mobile Support and Responsiveness
Telerik® UI for ASP.NET Core saves you time and effort when implementing responsive design practices, because the controls take care of them out-of-the-box or with the change of a single property:
All components render larger clickable areas on small screens and scale proportionately to the container in which they are placed
All components integrate well with grid-layout frameworks, such as Bootstrap and Zurb Foundation
The complex and popular components, such as Grid and Scheduler, serve different rendering on small screens to provide optimal user experience.
Simple Server-Side Data Binding and CRUD
If you are familiar with server-side programming, it can be hard to work with data in HTML5. Telerik UI for ASP.NET Core makes data binding simple. Use your existing server-side data access technologies to quickly bind data to the UI widgets via our DataSource component. With it, you can define endpoints for read and data editing operations, as well as mappings for requests between .NET and jаvascript.
Built-In, Yet Customizable Themes
With UI for ASP.NET Core, you build sleek, modern apps without a designer on-hand. Registering the CSS styles of the theme on the page is all it takes to theme your project with one of the 11 out-of-the-box skins. To apply the professional themes on normal HTML elements, like buttons and inputs, simply use the basic CSS classes included in UI for ASP.NET Core.
Transforming the ready-made themes to perfectly match your site is also easy when using the ThemeBuilder tool. With the point-and-click configuration wizard, your new themes are ready in a matter of seconds.
Use Bower and Nuget
Popular package management and task automation solutions such as NuGet, Bower and Gulp are made first class citizens in ASP.NET Core. That means every web developer can use Bower for client packages, NuGet for server packages and Grunt/Gulp for compilation, minification, etc., when building web apps.
UI for ASP.NET Core takes advantage of these tools by providing a Bower feed for its client scripts, and a NuGet feed, hosted on our NuGet server, for its server wrappers implementation (see this help topic for details). Furthermore, you can build a custom script from the source using Grunt by following these steps.
Cross-Platform Development
Probably the most significant feature of ASP.NET Core is the introduction of the new light and modular .NET Core runtime, which is OS-neutral. For the first time in .NET history, you can build applications and deploy them on Windows, Linux and Mac OSX devices. And on top of all that, it’s an open source solution so it’s free!
UI for ASP.NET Core fully supports the .NET Core runtime, and helps you build beautiful responsive web experiences crossing the boundaries of the Windows world.
Tag Helpers Overview
Tag Helpers are the HTML-friendly way to create views and define UI in ASP.NET Core applications. As of R2 2018 we now offer Tag Helpers for all of the components in the suite, including but not limited to the following:
AutoComplete
The AutoComplete has a Tag Helper which allows devs to lay out all available options in a HTML-like fashion or bind to various data sources in a declarative way.
Barcode
Thanks to the introduction of Tag Helpers, the Barcode component can be completely declaratively configured with a HTML-like syntax.
Button
The Button component can now be added to a page through its Tag Helper, enabling the advanced functionality of the component to be used in a similar syntax to the rest of the HTML on your page.
ButtonGroup
With the support for Tag Helpers, the ButtonGroup component can be completely declaratively configured with a HTML-like syntax.
Chart
Adding advanced data visualization with a simple HTML-like syntax has never been easier thanks to the Chart’s support for Tag Helpers in ASP.NET Core.
ColorPicker
Add the ability for users to select color to any form in a natural HTML-like way thanks to the Color Picker’s Tag Helper.
ComboBox
With Tag Helpers the ComboBox can be configured with a declarative HTML-like syntax and easily be bound to local and remote data.
DataSource
As the core of many data-bound components in UI for ASP.NET Core, the DataSource Tag Helper can be created declaratively and shared between multiple other components through their Tag Helpers and bind to local and remote data with ease.
DateInput
The DateInput Tag Helper allows developers to use a HTML-like syntax to add this advanced input element to any new or existing form.
DatePicker
Thanks to the DatePicker Tag Helper developers can now add date selection through a pop-up calendar with an easy-to-use HTML-like syntax.
DateTimePicker
Thanks to the introduction of Tag Helpers, the DateTimePicker component can be completely declaratively configured with a HTML-like syntax.
Dialog
Integrating a dialog component in to existing ASP.NET Core applications has never been easier with the Dialog Tag Helper.
Drag & Drop
Provide drag-and-drop capabilities to any existing HTML elements, or advanced components like the other UI components in UI for ASP.NET Core, with a declarative HTML-like syntax with the Drag and Drop component’s Tag Helper.
DropDownList
With Tag Helpers the DropDownList can be configured with a declarative HTML-like syntax and easily be bound to local and remote data in order to display a list of data to select from.
Grid
The Grid component is offered as a Tag Helper enabling developers to lay out the Grid and its configuration in a simple and easy-to-ready HTML-like declarative way. This included binding to local and remote data and can be done with even the most advanced Grid set ups.
LinearGauge
Adding gauges and data visualization with a simple HTML-like syntax has never been easier thanks to the LinearGauge’s support for Tag Helpers in ASP.NET Core.
MaskedTextBox
The MaskedTextBox Tag Helper allows developers to use a HTML-like syntax to add a masked input element to any new or existing form.
MultiSelect
The MultiSelect adds a Tag Helper which allows devs to lay out all available options in a HTML-like fashion or bind to various data sources in a declarative way.
Notification
Quickly add notifications anywhere in your application through a HTML-like syntax thanks to the Notification Tag Helper.
NumericTextbox
The NumericTextbox Tag Helper allows developers to use a HTML-like syntax to add this advanced input element to any new or existing form.
Popup
Use the Popup Tag Helper to let any set of HTML elements appear in a popup anywhere in your application.
ProgressBar
Indicate the current status of any process through a HTML-like syntax with the ProgressBar Tag Helper.
QR Code
Thanks to the introduction of Tag Helpers, the Barcode component can be completely declaratively configured with a HTML-like syntax.
RadialGauge
Adding gauges and data visualization with a simple HTML-like syntax has never been easier thanks to the RadialGauge’s support for Tag Helpers in ASP.NET Core.
ResponsivePanel
Provide any application with the ability to display a hamburger menu for smaller menus all through a HTML-like syntax with the ResponsivePanel’s Tag Helper.
Slider
Use a HTML-like syntax to provide the ability for users to select a value on a sliding scale thanks to the Slider Tag Helper.
Sortable
With the Sortable Tag Helper developers can use a HTML-like declarative approach to empower users to re-arrange HTML elements and advanced widgets on a page.
Splitter
Create expandable and collapsible panels with a HTML-like syntax through the Splitter Tag Helper.
TimePicker
Thanks to the TimePicker Tag Helper developers can now add time selection through a pop-up with an easy-to-use HTML-like syntax.
ToolBar
Add tool bars through a HTML-like syntax to any web page in a ASP.NET Core application with the ToolBar Tag Helper.
Tooltip
The ToolTip Tag Helper gives the power to add tooltips to any element or advanced UI component through a declarative HTML-like way.
Upload
The Upload Tag Helper gives a rich HTML-like syntax to create an upload area to any ASP.NET Core application.
Validator
Take client-side validation to the next level and integrate with existing model validation in ASP.NET Core with the Validator Tag Helper.
Window
Add a window that can be used as a modal, be interacted with through maximizing or minimizing, anywhere in your application through a HTML-like syntax thanks to the Window Tag Helper.
Conversational UI - Modern UI for Chatbots
The Conversational UI control (aka RadChat) is a new control intended to be used with various chat bot services. Highlights of the features include:
Built-in hero cards
Built-in suggested actions
Built-in simple message and typing indicator
Custom card/attachment templates
Easy connectivity to chat bot services (Azure/Microsoft Bot Framework, Wit.ai, Amazon Lex)
UI for ASP.NET Core R3 2020
Common
NEW
New Loader component
New AppBar component
New TextArea component
New ImageEditor component
Increase page speed score for demo sites
Convert project Wizard for ASP.NET Core MVC projects
FIXED
For nested field binding, the for= Tag helpers generate an element with an ID containing a dot
Chart
NEW
Chart legend title
Allow labels to be applied to plotbands
Missing median and mean settings for box plot series
FIXED
ExportImage is not saving the chart image in the desired dimensions in HiDPI
RadarLine with missingValues.interpolate does not connect end and start points
Chat
FIXED
JS error "Cannot use 'in' operator to search for 'buttons' in false" when .setOptions({toolbar:false}) is called
DateRangePicker
FIXED
On Android the DateRangePicker change event close Calendar after selecting a Start Date
DateTimePicker
FIXED
componentType does not apply "modern" in mvvm
Diagram
FIXED
Missing e.meta in click handler of a Diagram shape
Editor
FIXED
Focus gets stuck when navigating through color pickers tools using the keyboard in editor toolbar
Editor - empty em tags remain after clearing the content
Editor placed in a Window forces a request to undefined endpoint
Improve initial content deserialization
Form
NEW
Form label encoded option
FIXED
Form setOptions does not detach event handlers correctly
Gantt
NEW
Replace Gantt custom treelist implementation with the actual TreeList component
Gantt column options
Planned vs. Actual
Column Templates
fix(gantt): use toolbar styles for gantt
FIXED
Wrong Gantt Milestone timeline position in LESS themes
No styles for focused items in Scheduler and Gantt headers in Material, Material Black, Fiori
Not properly sized resizable columns in Gantt's TreeList view on less than 480px screen width
Grid
NEW
Expanding all detail templates via expandRow() on a Grid with many records and no paging enabled is slow
Sticky Columns
FIXED
Page is not reset after grouping
Persist selection does not work with group paging
Incorrect Grid "items" count when groupPaging is set to true
Grid autoFitColumn method does not work correctly with column filter and column menu
ColumnMenu in grid hides wrong columns and JS error appears when column without title is placed first
Group paging does not work correctly with local data
Setting pageable.position to "top" moves Grid's footer at the top of the component
Detail rows are partially exported in PDF
AutoFitColumn in multi-columns headers grid with locked column is not working
Wrong cell editors when Column Virtualization is used with Locked columns
ListView
NEW
Change ListView role when selection is not enabled
FIXED
Listview broken when initialized from table due to new rendering
MaskedTextBox
FIXED
Validation labels are not colored properly when reset method is called
Menu
FIXED
Menu sub-menus do not open on hover, if their parent root item with openonclick is expanded through the expand icon
NumericTextBox
NEW
NumericTextBox select on focus
FIXED
Validation labels are not colored properly when reset method is called
PDF Export
FIXED
Detail rows are partially exported in PDF
Pager
FIXED
Responsive pager is rendered when the width is more than the boundary
PivotGrid
NEW
PivotGrid row and column header sorting
Rating
FIXED
Rating label shows incorrect value with half precision
Scheduler
FIXED
No styles for focused items in Scheduler and Gantt headers in Material, Material Black, Fiori
Spreadsheet
FIXED
jаvascript exception on loading a file in the Spreadsheet
Unable to add a new row to a sheet exported to Excel and imported back in Spreadsheet
Spreadsheet: Incorrect server-side import of Excel file with frozen panes
Wrong values copied from Spreadsheet, if cells are selected via keyboard and the data range exceeds the non-scrolling size of the Spreadsheet
Spreadsheet cannot be scrolled in iOS 13
Telerik.web.Spreadsheet.Workbook.Load() throws an error on loading a document with gradient cells' background
TextBox
FIXED
Validation labels are not colored properly when reset method is called
TileLayout
FIXED
Calling setOptions on resize event breaks subsequent resize
TreeList
NEW
Include drag and drop to reorder items in TreeList
Selection checkbox column for TreeList widget
FIXED
ColumnMenuOpen event not triggered in Kendo UI TreeList
Window
FIXED
Editor placed in a Window forces a request to undefined endpoint
Wrappers (ASP.NET Core): DropDownList
FIXED
Consistent script encoding when BindTo method is used compared to the MVC suite
Wrappers (ASP.NET Core): Excel Export
FIXED
Cannot set Excel AllPages to True in MVC and Core
Wrappers (ASP.NET Core): Form
FIXED
Form does not handle boolean values in MVC and Core wrapper
Wrappers (ASP.NET Core): Globalization
NEW
Add nb-NO localization messages
Wrappers (ASP.NET Core): Grid
NEW
The ToDataSourceResult() method should support aggregates with DataTables for ASP.NET Core
FIXED
Foreign Key Remote binding causes error "Value cannot be null"
Wrong editor names when Grid is in partial view
Wrappers (ASP.NET Core): PDFViewer
NEW
Extend PDFViewer PDF.js options to include cMap configuration for the file
Wrappers (ASP.NET Core): TreeList
FIXED
Cannot set Excel AllPages to True in MVC and Core
What's New
NEW
Introduced XLS Format Provider that handles import and export of XLS documents in SpreadProcessing library.
PdfProcessing
NEW
The import can now handle startxref keyword and its offset defined on the same line.
Introduced support for Identity-V CMap.
Introduced support for UniCNS-UCS2-H encoding type of Type0Fonts.
FIXED
Data of inline image cannot be parsed when the stream contains "ei".
KeyNotFoundException is thrown while importing document because of the inability to find glyph "middot" data in Type1Font.
NotSupportedColorSpaceException is thrown when importing color space defined as an external resource.
NotSupportedException is thrown when importing document containing Annotation with not supported Action.
NullReferenceException is thrown when importing a PDF document containing InlineImage with missing parameters.
System.ArgumentException is thrown when setting a password to a document with form fields.
UriFormatException is thrown when importing UriAction with invalid URI.
InvalidCastException is thrown when importing predefined ToUnicode CMap.
NotSupportedException is thrown when trying to convert not supported Encoding Name.
The checkbox state is not correctly imported when the value is not specified.
SpreadProcessing
NEW
Implemented text orientation for cell content.
Introduced XLS Format Provider that handles import and export of XLS documents.
FIXED
Exception is thrown when the sheet name contains a single letter.
Image size is exported wrong when the size of the image is different than the original image size.
PrintArea is not taken into consideration when calculating the actual ScaleFactor.
A specific formula returns wrong result (=A1=FALSE).
WordsProcessing
FIXED
ArgumentException when importing RTF document which has a font size set to zero.
NullReferenceException is thrown while importing DOCX containing shape without an id attribute.
PdfFormatProvider: Font properties set from CharacterFormatting are not taken into account when inserting PAGE field.
Table and table cell borders are not evaluated according to inheritance and conflict resolution rules.
XmlException is thrown when importing document with docx AltChunk element.
Common
NEW
New Loader component
New AppBar component
New TextArea component
New ImageEditor component
Increase page speed score for demo sites
Convert project Wizard for ASP.NET Core MVC projects
FIXED
For nested field binding, the for= Tag helpers generate an element with an ID containing a dot
Chart
NEW
Chart legend title
Allow labels to be applied to plotbands
Missing median and mean settings for box plot series
FIXED
ExportImage is not saving the chart image in the desired dimensions in HiDPI
RadarLine with missingValues.interpolate does not connect end and start points
Chat
FIXED
JS error "Cannot use 'in' operator to search for 'buttons' in false" when .setOptions({toolbar:false}) is called
DateRangePicker
FIXED
On Android the DateRangePicker change event close Calendar after selecting a Start Date
DateTimePicker
FIXED
componentType does not apply "modern" in mvvm
Diagram
FIXED
Missing e.meta in click handler of a Diagram shape
Editor
FIXED
Focus gets stuck when navigating through color pickers tools using the keyboard in editor toolbar
Editor - empty em tags remain after clearing the content
Editor placed in a Window forces a request to undefined endpoint
Improve initial content deserialization
Form
NEW
Form label encoded option
FIXED
Form setOptions does not detach event handlers correctly
Gantt
NEW
Replace Gantt custom treelist implementation with the actual TreeList component
Gantt column options
Planned vs. Actual
Column Templates
fix(gantt): use toolbar styles for gantt
FIXED
Wrong Gantt Milestone timeline position in LESS themes
No styles for focused items in Scheduler and Gantt headers in Material, Material Black, Fiori
Not properly sized resizable columns in Gantt's TreeList view on less than 480px screen width
Grid
NEW
Expanding all detail templates via expandRow() on a Grid with many records and no paging enabled is slow
Sticky Columns
FIXED
Page is not reset after grouping
Persist selection does not work with group paging
Incorrect Grid "items" count when groupPaging is set to true
Grid autoFitColumn method does not work correctly with column filter and column menu
ColumnMenu in grid hides wrong columns and JS error appears when column without title is placed first
Group paging does not work correctly with local data
Setting pageable.position to "top" moves Grid's footer at the top of the component
Detail rows are partially exported in PDF
AutoFitColumn in multi-columns headers grid with locked column is not working
Wrong cell editors when Column Virtualization is used with Locked columns
ListView
NEW
Change ListView role when selection is not enabled
FIXED
Listview broken when initialized from table due to new rendering
MaskedTextBox
FIXED
Validation labels are not colored properly when reset method is called
Menu
FIXED
Menu sub-menus do not open on hover, if their parent root item with openonclick is expanded through the expand icon
NumericTextBox
NEW
NumericTextBox select on focus
FIXED
Validation labels are not colored properly when reset method is called
PDF Export
FIXED
Detail rows are partially exported in PDF
Pager
FIXED
Responsive pager is rendered when the width is more than the boundary
PivotGrid
NEW
PivotGrid row and column header sorting
Rating
FIXED
Rating label shows incorrect value with half precision
Scheduler
FIXED
No styles for focused items in Scheduler and Gantt headers in Material, Material Black, Fiori
Spreadsheet
FIXED
jаvascript exception on loading a file in the Spreadsheet
Unable to add a new row to a sheet exported to Excel and imported back in Spreadsheet
Spreadsheet: Incorrect server-side import of Excel file with frozen panes
Wrong values copied from Spreadsheet, if cells are selected via keyboard and the data range exceeds the non-scrolling size of the Spreadsheet
Spreadsheet cannot be scrolled in iOS 13
Telerik.web.Spreadsheet.Workbook.Load() throws an error on loading a document with gradient cells' background
TextBox
FIXED
Validation labels are not colored properly when reset method is called
TileLayout
FIXED
Calling setOptions on resize event breaks subsequent resize
TreeList
NEW
Include drag and drop to reorder items in TreeList
Selection checkbox column for TreeList widget
FIXED
ColumnMenuOpen event not triggered in Kendo UI TreeList
Window
FIXED
Editor placed in a Window forces a request to undefined endpoint
Wrappers (ASP.NET Core): DropDownList
FIXED
Consistent script encoding when BindTo method is used compared to the MVC suite
Wrappers (ASP.NET Core): Excel Export
FIXED
Cannot set Excel AllPages to True in MVC and Core
Wrappers (ASP.NET Core): Form
FIXED
Form does not handle boolean values in MVC and Core wrapper
Wrappers (ASP.NET Core): Globalization
NEW
Add nb-NO localization messages
Wrappers (ASP.NET Core): Grid
NEW
The ToDataSourceResult() method should support aggregates with DataTables for ASP.NET Core
FIXED
Foreign Key Remote binding causes error "Value cannot be null"
Wrong editor names when Grid is in partial view
Wrappers (ASP.NET Core): PDFViewer
NEW
Extend PDFViewer PDF.js options to include cMap configuration for the file
Wrappers (ASP.NET Core): TreeList
FIXED
Cannot set Excel AllPages to True in MVC and Core
What's New
NEW
Introduced XLS Format Provider that handles import and export of XLS documents in SpreadProcessing library.
PdfProcessing
NEW
The import can now handle startxref keyword and its offset defined on the same line.
Introduced support for Identity-V CMap.
Introduced support for UniCNS-UCS2-H encoding type of Type0Fonts.
FIXED
Data of inline image cannot be parsed when the stream contains "ei".
KeyNotFoundException is thrown while importing document because of the inability to find glyph "middot" data in Type1Font.
NotSupportedColorSpaceException is thrown when importing color space defined as an external resource.
NotSupportedException is thrown when importing document containing Annotation with not supported Action.
NullReferenceException is thrown when importing a PDF document containing InlineImage with missing parameters.
System.ArgumentException is thrown when setting a password to a document with form fields.
UriFormatException is thrown when importing UriAction with invalid URI.
InvalidCastException is thrown when importing predefined ToUnicode CMap.
NotSupportedException is thrown when trying to convert not supported Encoding Name.
The checkbox state is not correctly imported when the value is not specified.
SpreadProcessing
NEW
Implemented text orientation for cell content.
Introduced XLS Format Provider that handles import and export of XLS documents.
FIXED
Exception is thrown when the sheet name contains a single letter.
Image size is exported wrong when the size of the image is different than the original image size.
PrintArea is not taken into consideration when calculating the actual ScaleFactor.
A specific formula returns wrong result (=A1=FALSE).
WordsProcessing
FIXED
ArgumentException when importing RTF document which has a font size set to zero.
NullReferenceException is thrown while importing DOCX containing shape without an id attribute.
PdfFormatProvider: Font properties set from CharacterFormatting are not taken into account when inserting PAGE field.
Table and table cell borders are not evaluated according to inheritance and conflict resolution rules.
XmlException is thrown when importing document with docx AltChunk element.
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