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

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.

When using the OnRead event of the ComboBox there is no way to retrieve the selectedItem because the list of items that is populated is internal.

There are 2 workaround but they are not ideal:

- Saving the list of items returned by the OnRead event into a parallel list and then retrieve the selectedItem from it -> the problem is that there will be 2 identical lists in memory and, if scaled, might cause problems:

CachedSitesList = result.Items;

args.Data = result.Items;
args.Total = (int)result.TotalCount;

- Retrieving the selectedItem by calling the DB using the Id of the item -> the problem is that it's one more request to add to the DB and the performance is going to decrease if scaled, also it seems useless as the item is already present in memory.

We suggest adding a function to return the selectedItem to improve performance and scalability of the component.

--- 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

Currently the MultiColumnComboBoxColumn Width is only in pixels.

I would much rather use em or %.  I can do this with a <style> but the width does not calculate correctly and I cannot specify a width in the MultiColumnComboBoxColumns 

IMHO, since blazor is a web UI, widths should be more than pixels.

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()

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; }
    }
}
 

When SelectOnFocus="true" is enabled on the NumericTextBox control, and a format (e.g., Format="N1") is set, the SelectOnFocus functionality does not select all text if the decimal value has no trailing digits. For instance, with the value 76, the text is not selected on focus, but with the value 76.1, the text is selected correctly.

<TelerikNumericTextBox @bind-Value="@DecimalValue" Format="N1" SelectOnFocus="true"/>

@code {
    private decimal DecimalValue = 76;
}

Steps to Reproduce:

1. Add a NumericTextBox control to a Blazor Server application.
2. Set SelectOnFocus="true".
3. Set a format, e.g., Format="N1".
4. Enter a value such as 76 (with no trailing digits after the decimal point).
5. Focus on the NumericTextBox.

Expected Behavior: The entire text (in this case, 76.0) should be selected when the NumericTextBox gains focus.

Actual Behavior: The text is not selected when the NumericTextBox gains focus if the value has no trailing digits after the decimal point (e.g., 76). However, if the value includes trailing digits (e.g., 76.1), the text is selected as expected.

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

Optimise/Tailor inputs for screen reader users

globally for Telerik Blazor controls/inputs components we would prefer the ability to assign aria attributes. This will enable my organisation's user experience to improve for people relying on screen readers. 

aria-labelledby will enable us to stack labels for inputs in a group.

aria-describedby will enable us to provide additional information in context to an input, without the need for users to jump out of the input and find it.

I would like to have the Label property to all input components, like ComboBox, NumericTextBox, all date inputs and pickers and so on. Right now only TextBox have it.
There a hack using HTML labels and CSS to get that but I think it is necessary to unify and not have to deal with two different concepts within the same form.

Input with Label property:

<TelerikTextBox Label="Container Name" @bind-Value="@ContainerSettings.ContainerName"></TelerikTextBox>

Hack to get same result in other inputs:

<label class="k-label" for="port">
                    Port <br>
    <TelerikNumericTextBox Id="port" Arrows="false" @bind-Value="@ContainerSettings.Port"></TelerikNumericTextBox>

</label>

When I place a tooltip on drawer item, it just flickers randomly

https://blazorrepl.telerik.com/wQbbmbGb05hzznPh45

Hi,

It would be VERY helpful if you integrated "Prevent the Grid from wrapping text in multiple lines and show ellipsis" into grid as an option (so we would not have to write separate code and style).

I think this is one of the most needed features since grids almost always have data that wraps line.

BR, Smiljan