Hi !

I tried using the combobox but, since my datasource is too big and I need grouping, therefore virtualization is not possible, I need to do the filtering on the server side, using the OnRead method to fetch my data based on what the user has entered in the input field. The problem is that the client side filtering is always active and I can't reproduce the same type of filtering I do server side on the client side and I lose some results. I think it would be really nice if we could specify to not filter client side or something like that, to give us more control.

Thank you very much !

Description

Affected components: those inheriting from TelerikInputBase (e.g., TelerikDatePicker). When an exception is thrown inside an async Task event handler for the OnChange, OnBlur, OnOpen, and ValueChanged events, the exception is completely and silently swallowed. The exception is not caught by ErrorBoundary.

Related: #6333, #12364

Steps To Reproduce

1. Use a standard ErrorBoundary in MainLayout.razor.

<ErrorBoundary>
    <ChildContent>
        @Body
    </ChildContent>
    <ErrorContent>
        <p class="error">An unhandled error has occurred.</p>
    </ErrorContent>
</ErrorBoundary>

2. Declare a TelerikDatePicker and bind an async Task method to the ValueChanged or OnChange event.

<TelerikDatePicker Value="@DatePickerValue"
                   ValueChanged="@((DateTime inputDate) => OnDatePickerValueChanged(inputDate))">
</TelerikDatePicker>


<TelerikButton OnClick="@(() => throw new Exception("Exception from button"))">Click to test ErrorBoundary</TelerikButton>

@code {
    private DateTime DatePickerValue { get; set; } = DateTime.Today;

    private async Task OnDatePickerValueChanged(DateTime newValue)
    {
        throw new InvalidOperationException("This exception should be caught by the ErrorBoundary!");
    }
}

3. Run the page and select a date in the DatePicker.

Actual Behavior

The exception thrown in the OnDatePickerValueChanged event handler is not caught by ErrorBoundary.

Expected Behavior

The exception thrown in the OnDatePickerValueChanged event handler is caught by ErrorBoundary.

Browser

All

Last working version of Telerik UI for Blazor (if regression)

No response

Description

Affected components: those inheriting from TelerikSelectBase (e.g., TelerikDropDownList, TelerikComboBox, TelerikMultiSelect, TelerikAutoComplete). When an exception is thrown inside an async Task event handler for the OnChange, OnBlur, OnOpen, and ValueChanged events, the exception is completely and silently swallowed. The exception is not caught by ErrorBoundary.

Related: #6333

Steps To Reproduce

Steps to Reproduce

1. Use a standard ErrorBoundary in MainLayout.razor.

<ErrorBoundary>
    <ChildContent>
        @Body
    </ChildContent>
    <ErrorContent>
        <p class="error">An unhandled error has occurred.</p>
    </ErrorContent>
</ErrorBoundary>

2. Declare a TelerikDropDownList and bind an async Task method to the ValueChanged or OnChange event.

<TelerikDropDownList 
    Data="@DropDownData"                  
    ValueChanged="@( (int newValue) => OnDropDownValueChanged(newValue))"       
    TextField="@nameof(TestItem.Name)"
    ValueField="@nameof(TestItem.Id)" />

<TelerikButton OnClick="@(() => throw new Exception("Exception from button"))">Click to test ErrorBoundary</TelerikButton>

@code {
    private int? SelectedDropDownValue;

    private List<TestItem> DropDownData = new()
    {
        new() { Id = 1, Name = "Select me to throw exception" },
    };

    private async Task OnDropDownValueChanged(int newValue)
    {
        throw new InvalidOperationException("This exception should be caught by the ErrorBoundary!");
    }

    public class TestItem
    {
        public int Id { get; set; }
        public string Name { get; set; } = string.Empty;
    }
}

3. Run the page and select the item in the DropDownList's list.

Actual Behavior

The exception thrown in the OnDropDownValueChanged event handler is not caught by ErrorBoundary.

Expected Behavior

The exception thrown in the OnDropDownValueChanged event handler is caught by ErrorBoundary.

Browser

All

Last working version of Telerik UI for Blazor (if regression)

No response

Telerik UI for Blazor requires unsafe-inline styles in order to render style attributes from the .NET runtime.

Please add support for strict CSS CSP without the need for unsafe inline styles.

===

TELERIK EDIT:

Due to the complexity and required effort to add strict CSS CSP support:

• The feature request must gather enough votes.
• We may implement it gradually. That's why, everyone who is interested, please specify the exact components and features that you need to be compliant sooner.

Do you have a planned date for Telerik UI for Blazor to fully support Visual Studio 2022 Professional?

Telerik UI for Blazor cannot be used with Visual Studio 2022 Professional in Debug mode and Hot Reload. There are couple issues, see below, that seems to be related, and that Telerik are not willing to fix. Those issues render Telerik UI for Blazor unusable when working with Visual Studio 2022 Professional with Hot Reload.

Predefined dialogs are not shown after hot reload updates are applied and Predefined dialogs throw when hot reload updates are applied

Blazor WASM breaks in VS2022 after Hot Reload in UI for Blazor | Telerik Forums

Hello guys,

I know you probably gonna redirect me to these topics:

https://feedback.telerik.com/blazor/1588185-onshapeclick-does-not-trigger-for-every-bubble-or-shape-when-the-bubble-shape-layers-are-created-dynamically

https://feedback.telerik.com/blazor/1581128-ability-to-change-the-color-of-the-shape-on-click

But that is not a solution. The OnShapeClick-Event of the TelerikMap still triggers only if you click the shape, that was added last. Which means if I have 3 shapes in my TelerikMap, only a click on the third map will lead to the OnShapeClick event being triggered.

This is not a feature request, as you told Michael in his bug report und not at all related to the feature request of chaning a shape's color up on clicking it...but this is clearly a bug.

Please provide some short feedback on how / when this will be solved. Otherwise as a user of Blazor UI I have to manually write JavaScript Code, dismantle the DOM, trigger Interop-Methods etc. to achieve that behavior that should actually just work out of the box as documented.

Thanks and best regards!
Sebastian

I'd like to have an ExpansionPanel component where I can declare my desired panel instances and their content in the markup.

Similar to https://www.telerik.com/kendo-angular-ui/components/layout/expansionpanel/

I would like a comopnent similar to this one https://demos.telerik.com/kendo-ui/dropdowntree/index

The goal is to be able to show and select hierarchical data, because the multiselect is flat https://demos.telerik.com/blazor-ui/multiselect/overview

Existing Example

An example of this would be:

             var orderParams = new DialogParameters();
                orderParams.Add("SelectedOrderHeader", Item);
                orderParams.Add("EditMode", "Add");
                orderParams.Add("SelectedOrderDetail", new OMSOrderDetail());
          
                DialogService.Show<OrdersDetailForm>("Click on orders grid to continue", orderParams);

<OrderDetailsForm> is a custom Blazor component.

Does the Telerik Blazor dev team have any plans for implementing something like this?

Hello,

I would like to have the Polar chart available in Blazor.

Radar Chart are nice but the categorical axis are not usable when having directional data to display

Thank you

Thomas

Hello,

 it seems that something is missing to get it working in "SpeecToTextButton". 

how to reproduce:

• tested in different browser(edge,vivaldi,ff), even in private mode https://www.telerik.com/blazor-ui/documentation/components/speechtotextbutton/integration
• load the page

1. click start recording
2. allow microphone access for the first time
3. nothing recorded(it stays max at 2secs in recording state), goto 1

it flickers for a while(at system taskbar, there is also indication of recording) but nothing is "recorded/transcribed".

Is there any additional setup at clientside?

The latest version has broken one of our projects due to; 

• Throw when using Data and OnRead for the same component

So we deliberately used both events which worked quite well (but is now disallowed);

<TelerikGrid Data="@SheetList"
     @ref="_grid"
     SelectionMode="@GridSelectionMode.Multiple"
     @bind-SelectedItems="@SelectedSheets"
     EditMode="GridEditMode.Inline"
     OnRowContextMenu="@OnContextMenu"
     OnRowClick="@OnRowClick"
     OnAdd="OnAddHandler"
     OnEdit="@OnEditHandler"
     OnUpdate="OnUpdateHandler"
     OnCreate="OnCreateHandler"
     OnDelete="OnDeleteHandler"
     OnRead="@(IsFromHierarchy ? null : OnReadItemsAsync)"

This pattern enabled us to create components that did EITHER server-side pagination, or if it was send a data list as a parameter from a parent component, then it would use that instead (and turn off server pagination).

What would now be the recommended pattern for this scenario? Or do we need to duplicate the whole grid in the component (which isnt ideal).

namespace Telerik.Blazor.Components.Common;
TelerikGrid<T>
{

   public virtual void Rebind()   

      {       
            ProcessDataAsync(); 
      }

}

Rebind() doesnt use async/await, but ProcessDataAsync() does, which leads to race conditions.

Using the TelerikTabSrip, If the first tab is not visible when rendered, the tab content for all tabs doesnt render.

Replicated here https://blazorrepl.telerik.com/cpEWGOPk22VW8be254

If you change the code to make the first tab visible, all is well.

You can make other tabs invisible, and all is well.

I'm looking for what you have in WPF as we migrate ourselves over to Blazor - https://www.telerik.com/products/wpf/conversational-ui.aspx

---

ADMIN EDIT

For the time being, you can consider using the Kendo Chat widget as described in this sample project.

---

I have a grid with inline-edit mode where the items have data annotations validation enabled.
When I click the grid command button "add", and then without typing in anything submit in some way, the validation jumps in as it should.

However, if I - without providing more input and still in the same item's edit mode - just click the "add" button again and then submit the item again, the incomplete item is submitted without any further validation.

This is fatal for my purpose, and I can even reproduce the issue here on the Telerik website's example repl: Blazor Grid Editing Inline Editing - Telerik UI for Blazor (after turning off the option "Confirm Cancel Commands").

I would very much appreciate any guidance on how to circumvent that bug while it ist being worked on, since I couldn't yet find a way how to do it.
(As implied above, the confirmation prompt does prevent the bug, however I don't want to use a prompt if possible.)

Here's a list with some cases concerning this bug:
- tap add, submit => validation
- tap add, tap add, submit => submitted!
- tap add, submit (=> validation), tap add, submit => submitted!

Greetings to the team!