I'd like to use the adaptive rendering but I also need to keep AllowCustom feature.

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ADMIN EDIT

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This request applies to all components that support AllowCustom feature and adaptive rendering: for example, ComboBox, MultiColumnComboBox.

I've noticed this warning is now shown since version 9.0.0. I checked the release notes and don't see any notes reflecting this change. I also checked the documentation and don't see any information about the OnUpdate event. Can we please update the documentation to document the changes? I would like to understand the behavior of OnUpdate so I can move away from ValueChanged.

"warning CS0618: 'TelerikFilter.ValueChanged' is obsolete: 'Use OnUpdate instead.'"

Blazor Filter Events - Telerik UI for Blazor

Hello:

I am using column menu in a gantt component. In version 8.1.1 the selection of columns to display was working correctly, but when upgrading to version 9.0.0 I get an error using the same implementation. The error received is:

blazor.web.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
      Unhandled exception rendering component: Object reference not set to an instance of an object.
System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Blazor.Components.Common.ColumnMenu.ColumnMenu`1.<OnColumnChooserColumnVisibilityChange>d__188[[BlazorRepl.UserComponents.__Main.FlatModel, BlazorRepl.UserComponents, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()
   at Telerik.Blazor.Components.Common.ColumnMenu.ColumnMenuChooser.OnApplyClick()
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)

You can replicate the error from online examples just by adding or removing visible columns.
https://www.telerik.com/blazor-ui/documentation/components/gantt/gantt-tree/columns/menu

I need to use this functionality with Telerik® UI for Blazor version 9.0.0.

When is it planned to solve this error? Is there a workaround I can apply?

Regards.

I would like to have possibility to put sorting and filtering icons in second row or at least second line in TelerikGrid header. To follow our project design I need to have 1 header row with header titles, and second row with sorting and filtering. Or at least one table header row with sorting and filtering icons in 2 line. Is this somehow possible to achieve?

Creating a new WebApp project template through the extension fails to build. This is caused by incorrect icon type in the MainLayout.razor file.

To make sure the app is correctly built, the Icon type should be FontIcon.

<TelerikButton Icon="@FontIcon.Menu"
               FillMode="@ThemeConstants.Button.FillMode.Clear"
               OnClick="@( () => DrawerExpanded = !DrawerExpanded )" />

It appears there are some issues with encoding special characters in the DataSourceExtensions.ToODataString extension method.

See snippet below. 

var ds = new DataSourceRequest()
{
	Filters = [new FilterDescriptor("FieldName", FilterOperator.IsEqualTo, "Route #")],
	Sorts = []
};
{

Console.WriteLine(ds.ToODataString());

I have a scenario in which we have user definable columns for a grid, including hundreds if not thousands that need to be ported from the old version of our product. This means these column keys would be strings that may contain spaces or even special characters - and as such cannot be a valid C# property name (which means using an ExpandoObject approach will not work)

It would be really beneficial if the TelerikGrid component could be given Data of an IEnumerable<Dictionary<string, object>> where the Field property of GridColumn (or a new property) would line up with a key in that dictionary rather than a field name for the component to then use reflection with.

A customer with multiple modules of our product installed may very well have columns with similar names, i.e "Some Key", "SomeKey", "Some_Key", "Some & Key" - so simply replacing spaces or special characters may not always still give unique keys.

Hi, 

Are you planning to add a loader to the grid in the feature?

E.g as an isLoading attribute or exepnd the build-in one?

With method OnRead to fetch data, when grid is not yet loaded with data, it displays no records available.

Also when chenging data, loading is not starting, but there is an unsmooth transition after some time. 

Thanks in advance for your time, Kacper

We are using Telerik UI for Blazor (V6.2.0) grid. The first 3 columns (Delivery No, Spot Check, Spotcheck Status) of the grid are frozen/locked. While horizontal scrolling the header text gets overlapped. We have used custom CSS to change the header color.

<TelerikGrid @ref="@GridRef" Data="@dashboardData"
             Reorderable="true"
             SortMode="@SortMode.Single"
             Pageable="true"
             FilterMode="GridFilterMode.FilterRow"
             PageSize="10"
             EnableLoaderContainer="true"
             Sortable="true" Context="inboundContext" OnRowRender="@OnRowRenderHandler" Width="1800px" Height="500px">

I would like to use the new structs that are part of .NET6 - the DateOnly and TimeOnly. 

Their support should extend to all respective date and time pickers and more complex components like the Grid, Gantt, Scheduler, and other applicable components. 

Describe the bug

The class 'k-tabstrip' item is missing in the rendering of the TabStrip component.

To Reproduce

1. Go to the following demo and open the DevTools:

https://demos.telerik.com/blazor-ui/tabstrip/overview

2. Check the source of truth:

https://github.com/telerik/kendo-themes/blob/develop/tests/tabstrip/tabstrip.html 

Actual results

The class 'k-tabstrip-item' is missing.

Expected behavior

The class 'k-tabstrip-item' to be present.

Additional context

ThemeBuilder generates styles for the items of the TabStrip component with selectors like these:

.k-tabstrip .k-tabstrip-items-wrapper .k-tabstrip-items.k-reset.k-tabstrip-items-start .k-item.k-tabstrip-item.k-active .k-link

This works in other technologies, such as Kendo React, but it doesn't take effect in Blazor applications because of the issue.

Reported through t.1672526.

Docking Control like WPF Docking Control: https://www.telerik.com/products/wpf/docking.aspx

=== EDITED BY TELERIK ===

When using nullable enums, their DisplayNameAttrute doesn't show in the Grid.

https://blazorrepl.telerik.com/QTOlwiaM456Yh9Xp33

The bug is related to Enum DisplayName attributes are ignored in view mode of the Grid

=== ORIGINAL POST CONTENT ===

Sample Code to reproduce the error: 

https://blazorrepl.telerik.com/QzYPGLFj11s0rZwp47

If you change line 44 to a non-nullable field type, it crashes the grid with an error message in the CSS file.  I have included the error message I get in my blazor app with the same code above, console then sources:

I saw the FloatingActionButton Web control available in KendoUI and ASP.NET Core and I would like it in UI for Blazor: https://demos.telerik.com/kendo-ui/floatingactionbutton/index

After reading your documentation, it appears that the Pager Position enum only allows for the grid pager to be at the top OR the bottom of the grid.

It would be most excellent to allow it to be BOTH. For very large grids, it would be convenient for the user to see the grid at the very top, but if they do happen to need to scroll to the very bottom of the grid, seeing the pager component there would also be convenient for the user.

This is in regard to this page:
https://www.telerik.com/blazor-ui/documentation/components/grid/paging

Please add a .Both option to the PagerPosition enum that allows both Top and Bottom at the same time.

Thanks! :)

Within the grids, be able to filter and group using And & Or statements.  The following is our design.

Good Morning,

I have recently started getting random and repeated Javascript errors when debugging my project using your controls for Blazor.  It is completely random (sometimes happens immediately at project start, sometimes when navigating to a new page, sometimes when interacting with a control).  It is ALWAYS the same error....

TypeError: Cannot read properties of undefined (reading 'visible') 

Message=
  Source=
  StackTrace:
  at __webpack_modules__.8219.constructor.onMouseEnter (https://localhost:44307/_content/Telerik.UI.for.Blazor/js/telerik-blazor.js?v=ITaQSsBTBmdJoUpPr2KiZ7JwhfKjwa7SGa6zvlv9kkU:50:1442661)

I am using the most current version of your product.  I have gone through your "Javascript Errors" page and have worked through all the suggestions.  Nothing resolves it.

This is becoming a giant time sink while trying to work on a project.  What can we do to get appropriate error handling on your end to prevent these issues?

Thanks