Hi,

I haven't been able to find this as a request or as a topic of discussion (If it iss feel free to point me to it and close this request) but I feel the Grouping feature is limiting. If I use the group field in say the DropDownList the grouping works fine but it orders it alphabetically.

I propose adding a number of features to enhance this. The first being a GroupAscending or GroupDescending tag. Takes a boolean value and allows you to change the order to ascending (default/True) or descending (False).

The second, and more complicated feature upgrade could be a GroupOrder tag. This would take a List of the group field names ordered in the way you require and apply that order to the grouping in the DropDownList. for instance if you had the list ordered as Category 1, Category 3, Category 2 it would display the items in each grouping in that order top to bottom.

Regards,

Luke

We find this in our infrastructure but it can be reproduced even in Telerik docs.

Docs page: https://docs.telerik.com/blazor-ui/components/grid/grouping/overview try to drop all three columns using drag and drop in sequence: Team, Name, On Vacation.

Expected sequence: Team, Name, On Vacation

Expected sequence: Team, On Vacation, Name

All Elements are always added as 1 item. It is an important feature for us, as our customers use it frequently.

===

TELERIK EDIT:

A possible workaround is to intercept the grouping and reorder the groups:

@using Telerik.DataSource

<p>Group by a third column, so that it should come last in the Group Panel:</p>

<TelerikGrid @ref="@GridRef"
             Data="@GridData"
             Pageable="true"
             Sortable="true"
             Groupable="true"
             FilterMode="GridFilterMode.FilterRow"
             OnStateInit="@( (GridStateEventArgs<Employee> args) => OnGridStateInit(args) )"
             OnStateChanged="@( (GridStateEventArgs<Employee> args) => OnGridStateChanged(args) )">
    <GridColumns>
        <GridColumn Field="@nameof(Employee.Name)" />
        <GridColumn Field="@nameof(Employee.Team)" />
        <GridColumn Field="@nameof(Employee.Salary)" />
        <GridColumn Field="@nameof(Employee.OnVacation)" />
    </GridColumns>
</TelerikGrid>

@code {
    private TelerikGrid<Employee>? GridRef { get; set; }

    private List<Employee> GridData { get; set; } = new();

    private void OnGridStateInit(GridStateEventArgs<Employee> args)
    {
        args.GridState.GroupDescriptors = new List<GroupDescriptor>();

        args.GridState.GroupDescriptors.Add(new GroupDescriptor()
        {
            Member = nameof(Employee.Team),
            MemberType = typeof(string)
        });

        args.GridState.GroupDescriptors.Add(new GroupDescriptor()
        {
            Member = nameof(Employee.OnVacation),
            MemberType = typeof(bool)
        });
    }

    private async Task OnGridStateChanged(GridStateEventArgs<Employee> args)
    {
        if (args.PropertyName == "GroupDescriptors" && args.GridState.GroupDescriptors.Count > 2 && GridRef != null)
        {
            var secondGroupDescriptor = args.GridState.GroupDescriptors.ElementAt(1);

            args.GridState.GroupDescriptors.Remove(secondGroupDescriptor);
            args.GridState.GroupDescriptors.Add(secondGroupDescriptor);

            await GridRef.SetStateAsync(args.GridState);
        }
    }

    protected override void OnInitialized()
    {
        var rnd = new Random();

        for (int i = 1; i <= 20; i++)
        {
            GridData.Add(new Employee()
            {
                Id = i,
                Name = "Name " + i,
                Team = "Team " + (i % 4 + 1),
                Salary = (decimal)rnd.Next(1000, 3000),
                OnVacation = i % 3 == 0
            });
        }
    }

    public class Employee
    {
        public int Id { get; set; }
        public string Name { get; set; } = string.Empty;
        public string Team { get; set; } = string.Empty;
        public decimal Salary { get; set; }
        public bool OnVacation { get; set; }
    }
}

https://docs.telerik.com/blazor-ui/common-features/icons#icon-nuget-packages

When you click "Preview" under Using TelerikFontIcon, the preview is blank, even if I scroll to the top, still nothing.

Hi

I don't understand the text in this yellow info box: "You can define a key for zooming only selection zooming is configured." Is there a word missing?

https://docs.telerik.com/blazor-ui/components/chart/pan-and-zoom/zoom#specifying-a-key-for-zooming

https://docs.telerik.com/blazor-ui/knowledge-base/inputs-validation-child-component

Number of typos where "Fied" should be "Field".  

1 minute fix, just looks bad.  4x in MyCustomComponent and in MainComponent. 

Peter

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

https://docs.telerik.com/blazor-ui/components/grid/paging

Under the section "Bind Page Size to a variable", if you click preview it generates an error.

Peter

My grid bind to ExpandoObjects, and I would like to implement a Group Header.

So I referenced these two documents
https://docs.telerik.com/blazor-ui/knowledge-base/grid-binding-to-expando-object

https://docs.telerik.com/blazor-ui/components/grid/columns/multi-column-headers

From the first document, it make sense to me that we need to set FieldType for each column that binds to ExpandoObject, but it seems this restriction also applies to the group header column, which does not make sense.

Foe example:

<TelerikGrid Data="@GridData"
             Pageable="true"
             Sortable="true"
             FilterMode="@GridFilterMode.FilterRow">
    <GridColumns>
        <GridColumn Title="Test Group Header">
            <Columns>
                <GridColumn Field="PropertyInt" Title="Int Column" FieldType="@typeof(int)" />
                <GridColumn Field="PropertyString" Title="String Column" FieldType="@typeof(string)" />
                <GridColumn Field="PropertyDate" Title="DateTime Column" FieldType="@typeof(DateTime)" />
            </Columns>
        </GridColumn>
    </GridColumns>
</TelerikGrid>

I get error:

I need to set FieldType on the "Test Group Header" column to an arbitrary value to get rid of this error.

https://demos.telerik.com/blazor-ui/form/templates

When you edit in Telerik Repl, you get a warning message:

What was weird though, is when I ran it from directly from the link in the documentation, I didn't get an error.  I made one small change to the code (swapped line 54 and 55 (just seeing if I could change the rendering order, which I can) and then I saw this warning.  But any change to the code generates the warning.

Peter

Currently, the Splitbar of the TelerikSplitter is rather small.

It can be adjusted with CSS as shown here (https://blazorrepl.telerik.com/wnEfmyYp50ldIHsF13) but if the overall height of the page is large, the small arrow-icon that needs to be clicked in order to expand a collapsed SplitPane must be scrolled into view first.

It would be great to add alternative ways to expand a SplitPane, e.g. on a Double-Click on the Splitbar or maybe an additional Button.

Can you update the templates that come with Telerik Blazor?

For example, you are using an EditForm control instead of the telerik Blazor Form control.

There is an expression, eat your own dog food.  I often spin up template projects to play with new features or tweak existing ones.  Be nice take full advantage of current state of blazor components and provide samples that people can use as a learning tool or launching point. 

Peter

Hello there,

I encountered an issue with the TelerikGrid component. This started to be an issue from version 4.1.0 and can be reproduced from here:

https://docs.telerik.com/blazor-ui/components/grid/columns/visible#toggle-the-visibility-of-a-column-on-button

If this line from the example:

<GridColumn Field=@nameof(SampleData.Name) Title="Name" />

<GridColumn Field=@nameof(SampleData.Name) Title="Name" Visible="@!isVisible">
    <Template>
       @((context as SampleData).Name)
     </Template>
</GridColumn>

https://blazorrepl.telerik.com/cdkTuxEg30UJXWug36

When trying to expand the drop downs, some of them do not expand.
It is impossible to give a scenario that always behaves the same, but if
you keep expending the drop downs sooner or later some will stop working.

<TelerikCheckBox @bind-Value="@ExportAllPages" />

Hi

Trying to update to the latest version but in output in GitHub Actions it shows:

The type 'DataSourceRequest' is defined in an assembly that is not referenced. You must add a reference to assembly 'Telerik.DataSource, Version=2.1.3.0

However in my csproj I am referencing <PackageReference Include="Telerik.DataSource" Version="2.1.3" />

Any ideas?

OnRowRender in version 4 style is applied through one line.

For Example, I have DTO like below, how on Form I will Display Lable for FormItem from value get from Display Name