I would like to be able to override the No Data message in DropDownList component when there are no elements in the Data.

--

ADMIN EDIT

Until this feature is implemented, here is a workaround.

If you already have localization in your project, just set "DropDownList_NoData" key to an empty string in your resources.

If you don't have localization, here are the steps you should do (shortened version of the documentation):

1. Create a class for your localizer: 

public class SampleResxLocalizer : ITelerikStringLocalizer
{
    public string this[string name]
    {
        get
        {
            return GetStringFromResource(name);
        }
    }

    public string GetStringFromResource(string key)
    {
        // this will override only DropDownList_NoData message and it will return other messages as they are
        if (key == nameof(Messages.DropDownList_NoData))
        {
            return string.Empty;
        }

            return Messages.ResourceManager.GetString(key, Messages.Culture); ;
        }
}

2. Override the existing Localizer. This step should be done when configuring your services after calling "AddTelerikBlazor()":

builder.Services.AddSingleton(typeof(ITelerikStringLocalizer), typeof(SampleResxLocalizer));

--

https://docs.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.components.forms.fieldcssclassprovider.getfieldcssclass?view=aspnetcore-6.0

The feature request is to provide a way for Telerik customers to define custom validation classes. It seems appropriate to have the FieldCssClassProvider override in Telerik components. Thus, if required customers would be able to apply custom styling and remove the default theme classes for valid and invalid state.

Have been pouring through all your release videos, (Great Job Sam, Ed Et Al...) to be better informed as to what project type to select for a new Enterprise Admin App. The FilterView control stood out as a means of potentially saving me more than a week of work, but I just can't see making a new forms app going forward. Blazor and Maui seem like the only logical choices going forward, please add if convenient...

Thanks.

I am experiencing this problem with version 2.29 when the dropdown list is in a "component"

It seems to be intermittent but dependent on how long the async method takes to complete.

 Edit page

@page "/"
@using System.Diagnostics
@using System.Threading
@using BlazorApp1.Components

<h1>Hello, world!</h1>

<EditForm class="form-inline" Model="@Model">
    <MyComponent />
</EditForm>

Welcome to your new app.

@code {
    object Model = new();
    private Guid InstanceId;

    public Index()
    {
        InstanceId = Guid.NewGuid();
        Debug.WriteLine($"Index - {InstanceId}");
    }

    protected override Task OnInitializedAsync()
    {
        Debug.WriteLine("Index - OnInitializedAsync");
        return base.OnInitializedAsync();
    }

    protected override Task OnParametersSetAsync()
    {
        Debug.WriteLine("Index - OnParametersSetAsync");
        return base.OnParametersSetAsync();
    }
}

Component

@using System.Diagnostics
<h3>My Component</h3>
<br />
<TelerikDropDownList @bind-Value=_selectedValue Data="@myComboData" TextField="MyTextField" ValueField="MyValueField" TValue="int" TItem="MyDdlModel"></TelerikDropDownList>
<br />
<TelerikButton OnClick="@SayHelloHandler" Primary="true">Say Hello</TelerikButton><br />
@helloString
<br />

@code {
    private Guid InstanceId;
    MarkupString helloString;

    int _selectedValue { get; set; } = 2; // Preselected value
    IEnumerable<MyDdlModel> myComboData { get; set; } = Enumerable.Empty<MyDdlModel>();

    void SayHelloHandler()
    {
        string msg = string.Format("Hello from <strong>Telerik Blazor</strong> at {0}.<br /> Now you can use C# to write front-end!", DateTime.Now);
        helloString = new MarkupString(msg);
    }

    public MyComponent()
    {
        InstanceId = Guid.NewGuid();
        Debug.WriteLine($"MyComponent - {InstanceId}");
    }

    protected override async Task OnInitializedAsync()
    {
        Debug.WriteLine("MyComponent - OnInitializedAsync");
        myComboData = await LoadData();
        await base.OnInitializedAsync();
    }

    protected override Task OnParametersSetAsync()
    {
        Debug.WriteLine("MyComponent - OnParametersSetAsync");
        return base.OnParametersSetAsync();
    }

    private async Task<IEnumerable<MyDdlModel>> LoadData()
    {
        await Task.Delay(100);
        return Enumerable.Range(1, 20).Select(x => new MyDdlModel { MyTextField = "item " + x, MyValueField = x });
    }

    public class MyDdlModel
    {
        public int MyValueField { get; set; }
        public string MyTextField { get; set; }
    }
}
 

Further to issue reported in https://feedback.telerik.com/blazor/1545177-selected-items-are-not-preserved-when-loading-the-state-when-the-component-is-bound-to-expandoobjects wrt Expando Object, the column menu reset also does not work when grid is bound to Expando Object

Regards

Naved

Please add organizational chart control similar with

https://demos.telerik.com/aspnet-ajax/orgchart/examples/overview/defaultcs.aspx

Hi team,

I know we have Diagram like Kendo UI for Blazor, But it's confusing and gets very messy with more customizations. I would be very helpful if we have native Blazor component for diagram rather than integrating JQuery with Kendo. Hence making a feature request. 

let me know if there is any plan in pipeline for this feature.

Regards,

Rikam

I would like to be able to set the aria-required or the required HTML attribute to the input components in the Telerik UI for Blazor suite. This is needed because currently, the screen readers do not notify the users of the application that an input is required. 

This is something I will continue to push for, and have been for two years. We NEED a Month View that is able to hold more than two appointments without showing the ellipse button. See my previous comments at https://feedback.telerik.com/blazor/1527587-allow-displaying-more-than-two-events-per-day-in-the-scheduler-month-view

Currently, the AdaptiveMode.Auto in Blazor Hybrid has to be defined at the component level. 

It would be nice if it could be globally defined at the TelerikRootComponent level.

As an additional possibility...

The current ASP.NET Ajax Telerik Controls, there is a property for Rendering -- Lightweight mode, Classic mode, etc. This can be defined at the control level, the custom control level, the page level and globally in web.config.

It would be great if this property AdaptiveMode could be defined in a similar way -- control level, custom Blazor component level, Razor page level or global level.  If I understand correctly, much of the specific CSS styling can be done at different levels in Blazor.  This would be similar.

Regards,
Dennis

Hi there,

i'm struggling with kendo theming. I'm trying to implement a material ui with telerik ui for blazor. I did follow the steps in the getting started pages but i'm getting a half baked ui which is missing essential parts like the focus animations for textboxes like shown in the textbox demo: https://demos.telerik.com/blazor-ui/textbox/overview.

My recent approach was to compile the files in the kendo theme Git repository but these also don't work.

What am i doing wrong? How exactly did you achieve the full material experience in the demos?

So lonG

Daniel

--- FOR FUTURE REQUEST ---

Could be very useful to scrolling tha grid to a specific item\row (in Normal Grd and also in Virtual Grid mode, both)  programmatically. Whithout javascript.

For example after loading a grid that show 20 items, programmatically is it possible to go (and display in grid) not the first 20 rows but for example at row 100. So the vertical scrolling bar muso go dow sice arriving and show that row.

Best Regards

Paolo Leonesi

So, brand new machine (Win 11 pro 64bit), brand new install of Visual Studio & Telerik, use the Telerik templates to create a new Blazor Server project.

When I run the application (with changes or first run), it takes almost a minute to start the application.

Without changes it starts in 2 seconds.

The fix is to add the following to the application's csproj file.

  <PropertyGroup>
    <UseRazorBuildServer>false</UseRazorBuildServer>
  </PropertyGroup>

After the fix, it takes an just a little longer to run than without changes.  Since I have not heard back on my support ticket, I wanted to report this as a bug so hopefully it can get upvoted and we can get an answer to this issue. 

Original support ticket https://www.telerik.com/account/support-center/view-ticket/1621737 

My Setup:

7950x, 32 gb DDR5 ram, WD Black SSD 850x SSD and slower internet 150mbit/s

Similar problem with my new laptop which is about 50% slower but exactly the same issue.

Peter

This error appears after update 15, in 14.1 it works correctly.

ADMIN EDIT:

This error occurs from the FilterMode set to FilterRow. As a workaround, until the fix is implemented, you could use the FilterMenu instead.

Regards

blazor.server.js:15 [2020-06-30T23:44:51.768Z] Error: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. (Parameter 'index')
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at Telerik.Blazor.Components.Grid.GridCellBase`1.get_Column()
   at Telerik.Blazor.Components.Grid.GridCellBase`1.get_BoundColumn()
   at Telerik.Blazor.Components.Grid.GridFilterCell`1.get_BoundColumnFilterCellTemplate()
   at Telerik.Blazor.Components.Grid.GridFilterCell`1.BuildRenderTree(RenderTreeBuilder __builder)
   at Microsoft.AspNetCore.Components.ComponentBase.<.ctor>b__6_0(RenderTreeBuilder builder)
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderInExistingBatch(RenderQueueEntry renderQueueEntry)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()

Hi. 

Because https://feedback.telerik.com/kendo-jquery-ui/1360369-blazor-ooui is not closed I am now suggesting that you make controls for the Uno UI platform and Ooui.

Ooui and Uno are both known in context with Web Assembly and I think you should make controls for both.

You should also consider making controls for Ooui server side. If I could choose from all the worlds' options to build a web application, I would use Ooui server side, if it wasn't because of the lack of controls. The server side option is so simple to use and it was actually the reason Frank Krueger created it to begin with. He wanted a super simple way to display something on the web and he achieved that.

Flemming 

We are based in the US; but want to display values in a numeric text box based on the culture of the place where the data was entered.

So if the data was entered in the UK, we want the number to be formatted according to UK culture, etc.  That way, it's easy to tell that number is representing pounds vs dollars, etc.

Can we please get the ability to set culture to specific controls?  We don't want to change the current thread culture for everything on the page, just for one control.

thanks!