Hello

Just seeing if it would be easy to separate the "StockChartNavigator" component that currently sits within the "TelerikStockChart" component.

So in other words, have a generic "ChartNavigator" component; the navigator is very good as a standalone and could be applied to many things such as grids, non-telerik charts (not only stock data) etc.

Alternatively, if there were a way to override the chart template of the TelerikStockChart, that would achieve the same result?

Cheers
Phil

Provide ability to define icons for input prefix and suffix. Thus, provide mechanism for built-in validation icon as well.

Example image with suffix icons to give you better perspective of the feature.

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

Like the grouping in the Kendo combo box https://demos.telerik.com/kendo-ui/combobox/grouping

<AdminEdit>

This Feature Request would be an umbrella for implementing items grouping for select components (ComboBox, DropDownList, MultiSelect, and others).

</AdminEdit>

Currently working on moving from winform to Blazor and found a feature not supported in Telerik atm.

Getting current error when trying to enable Virtualiztion inside a grid

Groupable is not supported with the Virtualization feature of Telerik Grid

Where im already setting grouping on one of the columns

We use QueryableExtensions.ToDataSourceResultmethod to load some data in our component. And at some moment we need to cancel data loading. But ToDataSourceResult method doesn’t support CancellationToken. So we are forced to use a workaround and just ignore the task's result. But task is still executing and causing the performance hit…

It would be great if you implemented support for this feature!

This is kind of hard to explain, so please see the attached Before and After videos.  In these videos, I'm using a brand new .NET 6 console app.

In the Before video, the Telerik UI for Blazor extension is disabled.  After I type `Console` and hit the period, I see intellisense like I expect to.

In the After video, the extension is enabled.  I'm typing the same thing and hitting period, but something interrupts the period keystroke, and it never appears.  Instead, it just closes the intellisense window.

I used a new console app as an example, but it's happening in all projects.  It's also happening with other keys like semicolons, spaces, and tabs.  It's causing a huge amount of typos and making so I often have to hit keystrokes twice in order for them to register.

I tried doing a full reinstall of Visual Studio.  Everything's fine until I install the Telerik extension, then it starts.  If I disable the extension, the issue goes away.

See more details in the following KB article: https://docs.telerik.com/blazor-ui/knowledge-base/textbox-validate-on-change and if the behavior and solution there do not fit your needs, leave your comments and ideas on how you want this exposed for configuration and what the desired behavior is. Also, make sure to Vote for this enhancement so we can gauge the public interest in it.

Hi,

In most of my projects I use the ObjectGraphDataAnnotationsValidator component for validating complex types; and I also use a lot of your components. I've noticed what I *think* might be a clash between this validator and some of your input components. I've built a simple (and crude) example but I think it demonstrates the problem.


In the example code we have a table with 2 cells - in both cells we have an EditForm and 10 TelerikTextArea components. The first cell's EditForm contains a ObjectGraphDataAnnotationsValidator instance and the 2nd cell doesn't. Hopefully when you try to reproduce you will notice a distinct difference in performance with the performance of the 2nd EditForm being great, while the 1st EditForm is quite laggy and gets worse the more items you add.


I'm wondering if there is a clash here between the ObjectGraphDataAnnotationsValidator and the input components or I'm using them incorrectly?


Thanks
Michael.

@page "/"

<table width="100%">
    <tr>
        <td width="50%">
            <h3>EditForm with ObjectGraphDataAnnotationsValidator</h3>
            <EditForm Model="Items">
                <ObjectGraphDataAnnotationsValidator />
                @foreach (var item in Items)
                {
                    <div style="display: flex">
                        <TelerikTextArea @bind-Value="item.TextValue" />

                        @if (Items.IndexOf(item) == (Items.Count - 1))
                        {
                            <TelerikButton OnClick="@(() => Items.Add(new DataItem()))">
                                Add
                            </TelerikButton>
                        }
                    </div>
                }
            </EditForm>
        </td>
        <td width="50%">
            <h3>EditForm without ObjectGraphDataAnnotationsValidator</h3>
            <EditForm Model="Items">
                @foreach (var item in Items)
                {
                    <div style="display: flex">
                        <TelerikTextArea @bind-Value="item.TextValue" />

                        @if (Items.IndexOf(item) == (Items.Count - 1))
                        {
                            <TelerikButton OnClick="@(() => Items.Add(new DataItem()))">
                                Add
                            </TelerikButton>
                        }
                    </div>
                }
            </EditForm>
        </td>
    </tr>
</table>

@code {
    protected List<DataItem> Items { get; set; }

    protected override void OnInitialized()
    {
        Items = new List<DataItem>();
        for (var i = 1; i <= 10; i++)
        {
            Items.Add(new DataItem { TextValue = $"This is item number {i}." });
        }
    }

    public class DataItem
    {
        public string TextValue { get; set; }
    }
}

When filtering or editing a Grid with enum data, the Name property of their Display parameter is respected.

However, in the initial view mode of the Grid the Name property is not applied and the enum values are rendered regardless of whether or not their Display parameter has a Name property defined.

==========

ADMIN EDIT

==========

In the meantime, a workaround you might try is to create a custom method to check whether Display attribute is defined and get and display its Name property, otherwise display the Enum's member name.

You can then use a Template for the column that uses enum data, cast its context to the model you are using and invoke the method on the field containing the enum. The sample below demonstrates how you can achieve this.

@using System.ComponentModel.DataAnnotations
@using System.Reflection

<TelerikGrid Data=@MyData EditMode="@GridEditMode.Inline" Pageable="true" Height="500px"
             OnUpdate="@UpdateHandler" FilterMode="@GridFilterMode.FilterRow">
    <GridColumns>
        <GridColumn Field=@nameof(SampleData.ID) Editable="false" Title="ID" />
        <GridColumn Field=@nameof(SampleData.Name) Title="Name" />
        <GridColumn Field=@nameof(SampleData.Role) Title="Position">       
            <Template>
                @{
                    var currentEmployee = context as SampleData;
                    var currentRole = GetDisplayName(currentEmployee.Role);                        
                }

                @currentRole
            </Template>
        </GridColumn>
        <GridCommandColumn>
            <GridCommandButton Command="Save" Icon="save" ShowInEdit="true">Update</GridCommandButton>
            <GridCommandButton Command="Edit" Icon="edit">Edit</GridCommandButton>
        </GridCommandColumn>
    </GridColumns>
</TelerikGrid>

@code {
    //custom method to check whether Display attribute is defined and get and display its Name property, otherwise display the Enum's member name
    public string GetDisplayName(Enum val)
    {
        return val.GetType()
                  .GetMember(val.ToString())
                  .FirstOrDefault()
                  ?.GetCustomAttribute<DisplayAttribute>(false)
                  ?.Name
                  ?? val.ToString();
    }


    public void UpdateHandler(GridCommandEventArgs args)
    {
        SampleData item = (SampleData)args.Item;

        //update the view-model
        var index = MyData.FindIndex(i => i.ID == item.ID);
        if (index != -1)
        {
            MyData[index] = item;
        }

        //perform actual data source operations here
    }

    //model and dummy data generation
    public class SampleData
    {
        public int ID { get; set; }
        public string Name { get; set; }
        public Role Role { get; set; }
    }

    public enum Role
    {
        [Display(Name = "Manager")]
        ManagerRole,
        [Display(Name = "Employee")]
        EmployeeRole,
        [Display(Name = "Contractor")]
        ContractorRole
    }

    public List<SampleData> MyData { get; set; }

    protected override void OnInitialized()
    {
        MyData = new List<SampleData>();

        for (int i = 0; i < 50; i++)
        {
            MyData.Add(new SampleData()
            {
                ID = i,
                Name = "name " + i,
                Role = (Role)(i % 3) // just some sample to populate initial values for the enum
            });
        }
    }
}

If the TextArea component is used within an EditorTemplate of a grid column, edit mode is always closed upon hitting ENTER.  The thing is that I'm using the TextArea to allow the user to input several lines.  Upon Enter the user wants to move to a new line within the TextArea and not to finish the edit mode.

Regards,

René

---

ADMIN EDIT

For the time being I can offer using the popup editing or a custom external edit form (inline or popup).

Another workaround would be to stop the keydown event propagation so the grid/treelist cannot consume it and close the cell:

        <TreeListColumn Field="EmailAddress" Width="220px">
            <EditorTemplate>
                @{
                    CurrentlyEditedEmployee = context as Employee;
                    <div @onkeydown:stopPropagation="true">
                        <TelerikTextArea @bind-Value="@CurrentlyEditedEmployee.EmailAddress"></TelerikTextArea>
                    </div>
                }
            </EditorTemplate>
        </TreeListColumn>

It is possible that the grid might stop handling Enter when editor templates are present so you can use the events from the custom editor as desired to invoke the save operation. This could happen through the following request: https://feedback.telerik.com/blazor/1493770-ability-to-prevent-multiple-calls-of-async-updatehandler-when-pressing-enter-in-incell-edit-mode. With or without it, it is highly likely that the approach of preventing the event propagation is the correct one because the grid cannot know what the editor template contains and handle events differently based on that.

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