Questions on UI for Blazor Forum

1 answer

20 views

Hi I was wondering if it's possible to find more details on exactly what is changed in each release? In general the list in Release History is very generic and does not necessarily mention what method or API, etc. changed. Competing products will display links to issues or work items included, or at least more details about what code changes were made. And the lists are comprehensive.

For instance, in v9 demos, there is a NEW badge on the Grid -> Export, though exporting has been there for awhile. Reading Release History alludes to:

Add configuration for CSV export API
Add configuration for Excel export API

but that doesn't really tell me what is changed or available now. Looking at the docs nothing seems radically new.

Details like that are critical in an enterprise environment when evaluating new features or breaking changes, or to just keep up with what's changing. And if I'm just missing this info somewhere, let me know.

General Discussions

answered on 21 May 2025

1 answer

35 views

Window Breaking Change to Remove Centered Option

Why did you remove the centered option in the window in place of Top and Left positions in 9.0.0?! The programmer will now have to manually figure out the top/left corner location based on the browser size and the size of the window. I have 20+ of your window controls and all of them are skewed out of the browser window when I set them to 50%, 50%. This makes centering of a window a completely manual process and VERY difficult.

Window

answered on 21 May 2025

1 answer

33 views

Nuget feed timeout

Hello,

I'm getting several time out messages while trying to restore nuget packages from a Azure Pipeline.

Is there any running issue with the Nuget servers?

BR,

Vitor Linares

General Discussions

answered on 21 May 2025

2 answers

18 views

Changing Notification size isn't working?

In my _Host.cshtml

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <base href="~/" />
    <component type="typeof(ApplicationInsightsInit)" render-mode="ServerPrerendered" />
    <link href="_content/Telerik.UI.for.Blazor/css/kendo-theme-default/all.css?@telerikUiForBlazorVersion" rel="stylesheet" />
    <link href="_content/Telerik.UI.for.Blazor/css/kendo-font-icons/font-icons.css" rel="stylesheet" />
    <link href="lib/fontawesome/css/all.css" rel="stylesheet" />
    <link href="css/styles.css" rel="stylesheet">
    <link href="css/site.css" rel="stylesheet" />

In my Site.css

.TelerikNotification .k-notification-container .k-notification {
    width: 300px;
    height: 50px;
    font-size: 1.5em;
    text-align: center;
}

.wide-notification-center .k-notification {
    width: 750px;
    height: 70px;
    font-size: 1.5em;
    text-align: center;
}

Blazor Page

<TelerikNotification @ref="@NotificationRefWide" Class="wide-notification-center" HorizontalPosition="@NotificationHorizontalPosition.Center" AnimationDuration="3000"></TelerikNotification>

C# page code (server side)

public TelerikNotification NotificationRefWide { get; set; }



                    NotificationRefWide.Show(new NotificationModel()
                    {
                        Text = "Warning: " + message,
                        ThemeColor = ThemeConstants.Notification.ThemeColor.Warning,
                        Closable = true,
                        CloseAfter = duration,
                        Icon = FontIcon.WarningTriangle,
                        ShowIcon = true
                    });

Any changes I make in the Site.css have ZERO impact on the display of the notification (see attached image). In fact, I can remove the class definitions from CSS and still get the same results. It's as if Telerik Notification is completely ignoring the class reference?

Any suggestions?

Rob.

Notification

answered on 21 May 2025

1 answer

16 views

TelerikChart X-Axis Misinterprets Double Values as Categories in Blazor

Hello,

I'm having trouble configuring a TelerikChart in Blazor to properly display a column series and a line series side-by-side on the same chart.

My goal is to have the X-axis (CategoryAxis) reflect double values (e.g. 0, 5, 10, 15...) so that both series are aligned and spaced proportionally based on their actual numeric X values.

However, what I'm observing is that the X-axis seems to treat these values as categories or strings, not real numbers. This results in incorrect spacing and ordering.

What's going wrong:

The columns are not placed in the correct positions on the X-axis — for instance, a column with X = 6 appears at the far end if 6 doesn't also exist in the line series.

The values on the X-axis are not sorted numerically — so the spacing between, say, 5 and 10 is the same as between 10 and 1024, which breaks the scale.

Ideally, I want the chart to understand that X = 1024 is far from X = 50, and space it accordingly on a continuous numeric scale.

You can see the visual chart below:

The code for the chart:

@page "/test"
@using ChartLegendPosition=Telerik.Blazor.ChartLegendPosition
@using ChartSeriesType=Telerik.Blazor.ChartSeriesType
<TelerikChart>
    <ChartSeriesItems>
        <ChartSeries Type="ChartSeriesType.Line" Name="Normal Distribution" Data="@series2Data" Field="Y" CategoryField="X" CategoryAxis="Category" Axis="Value" Style="@ChartSeriesStyle.Smooth" Color="blue">
            <ChartSeriesMarkers Visible="false"/>
        </ChartSeries>
        <ChartSeries Type="ChartSeriesType.Column" Name="Histogram" Field="Y" CategoryField="X" CategoryAxis="Category" Axis="Value2" Data="@series1Data">
        </ChartSeries>
    </ChartSeriesItems>
    
    <ChartValueAxes>
        <ChartValueAxis Name="Value"></ChartValueAxis>
        <ChartValueAxis Name="Value2"></ChartValueAxis>
    </ChartValueAxes>
    
    <ChartCategoryAxes>
        <ChartCategoryAxis Name="Category">
        </ChartCategoryAxis>
    </ChartCategoryAxes>

    <ChartTitle Text="Quarterly revenue per product"></ChartTitle>

    <ChartLegend Position="ChartLegendPosition.Right">
    </ChartLegend>
</TelerikChart>

@code {
    public List<Point> series1Data = new List<Point>()
    {
        new Point { X = 0, Y = 1 },
        new Point { X = 6, Y = 2 },
        new Point { X = 12, Y = 3 },
        new Point { X = 18, Y = 4 },
        new Point { X = 24, Y = 5 },
        new Point { X = 30, Y = 6 },
        new Point { X = 36, Y = 7 },
        new Point { X = 42, Y = 8 },
        new Point { X = 48, Y = 9 },
        new Point { X = 1024, Y = 10 },
    };

    public List<Point> series2Data = new List<Point>()
    {
        new Point { X = 0, Y = 0.01 },
        new Point { X = 5, Y = 0.02 },
        new Point { X = 10, Y = 0.05 },
        new Point { X = 15, Y = 0.1 },
        new Point { X = 20, Y = 0.2 },
        new Point { X = 25, Y = 0.35 },
        new Point { X = 30, Y = 0.5 },
        new Point { X = 35, Y = 0.7 },
        new Point { X = 40, Y = 0.85 },
        new Point { X = 45, Y = 0.95 },
        new Point { X = 50, Y = 1.0 },
        new Point { X = 55, Y = 0.95 },
        new Point { X = 60, Y = 0.85 },
        new Point { X = 65, Y = 0.7 },
        new Point { X = 70, Y = 0.5 },
        new Point { X = 75, Y = 0.35 },
        new Point { X = 80, Y = 0.2 },
        new Point { X = 85, Y = 0.1 },
        new Point { X = 90, Y = 0.05 },
        new Point { X = 95, Y = 0.02 },
        new Point { X = 100, Y = 0.01 }
    };

    
    public class Point
    {
        public double X { get; set; }
        public double Y { get; set; }
    }
    
    // protected override void OnInitialized()
    // {
    //     var samples = new double[] {0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93};
    //     var std = StatisticsHelper.StandardDeviation(samples);
    //     var average = samples.Average();
    //     var yValues = StatisticsHelper.CalculateProbabilityDensityValues(samples.ToList(), std, average);
    //     
    //     series2Data = samples
    //         .Zip(yValues, (x, y) => new DistributionPoint { X = x, Y = y })
    //         .ToList();
    //     
    //     base.OnInitialized();
    // }
}

Does TelerikChart support a numeric X-axis instead of a CategoryAxis?
If so, should I be using a ChartValueAxis for the X-axis instead of a ChartCategoryAxis?

Is there a recommended way to configure a dual-axis chart where both the column and line series share a numeric X-axis?
I'd like the spacing to be consistent and reflect the actual distance between values.

PS: I also tried this with XAxes instead of CategoryAxes. But the same issue occurs.
Also I tried to use ascatterline instead of line. with type numeric on the x-axis. But then I cant add the column on that axis.

If you need more information, or if the issue is unclear, feel free to ask.

Charts

answered on 21 May 2025

1 answer

19 views

Maui Blazor Android 11 support

How could I downgrade the trial version of UI for Blazor to 7.x to test it on Android 11? I plan to use Maui Blazor. Or does the newest version support it?

Licensing

answered on 20 May 2025

0 answers

9 views

TelerikCalendar header is unexpected transparent

I'm using a TelerikCalendar component in a TelerikAnimationContainer and everything works fine, except that the calendar header is transparent and the background text is visible when the calendar pops up. I've tried setting a higher z-index to the calendar, but it doesn't helped.

<style>
    .picker-popup > .k-calendar {
		border-width: 0;
    }    
	.date-time-box-calendar {
        width: 26vw;
        height: 30vw;
        background-color: beige;
    }
</style>

<TelerikAnimationContainer @ref="@calendarContainer" Class="picker-popup k-calander">
	<TelerikCalendar class="date-time-box-calendar" Value="@Source" View="CalendarView.Month" Views="2" ValueChanged="@OnDateChangeHandler"></TelerikCalendar>
</TelerikAnimationContainer>

@{
    async Task OnClickCalendarHanlder()
    {
		await ToggleCalendar();
    }

    async Task ToggleCalendar()
    {
        await calendarContainer.ToggleAsync();
    }
}

Any idea, how can I get the calendar to most front view? What is my mistake?

Calendar

asked on 20 May 2025

1 answer

26 views

DatePicker Overflow Issue

We have a Blazor DatePicker in our web app to store the Date of Birth. The calendar popup seems to be working correctly. However, for the input portion, when typing in the year of the date, the content typed into the year overflows the input area for as long as the user types, instead of horizontally scrolling within the 4-digit year space.

The interesting thing is that this is only happening to one of our client users. We have been unable to duplicate this either locally or in our Dev/Test environments. I'm assuming that, since the horizontal scrolling of the year entry is within the DatePicker widget, could this possibly be due to an environment issue with the Blazor library or maybe some setting within Microsoft Edge?

I don't have as many details as I would like to have to share with you. At this time, I'm just trying to find out if you have ever heard of this issue before?

DatePicker

answered on 20 May 2025

1 answer

12 views

Scroll Viewer for Blazor

I'm using a splitter. But, my contents can go longer than the exposed area defined by the splitter (height). Do you have a scroll viewer for blazor or a similar layout control?

    <TelerikSplitter Orientation="SplitterOrientation.Horizontal" Height="70vh">
        <SplitterPanes>

            <SplitterPane Size="40%" Min="30%" Max="70%" Collapsible="false">

Splitter

answered on 20 May 2025

1 answer

17 views

Upload: File extensions

Is there a way to filter which file extensions are allowed to be selected? I limit to PDF or PNG but it allows me to select XML.

                   <div>
                       <hr />
                       <h4 class="gsi-padding-tb0-lr12">Upload File to Session...</h4>

                       <TelerikUpload AllowedExtensions="@( new List<string>() { ".pdf", ".png" } )"
                                      OnSelect="@OnUploadSelect"
                                      OnCancel="@OnUploadCancel"
                                      OnRemove="@OnUploadRemove">
                       </TelerikUpload>

                       <div class="demo-hint gsi-padding-tb0-lr12">
                           <small>
                               Upload <strong>PDF</strong> or <strong>PNG</strong> files with a maximum size of <strong>6MB</strong>.
                           </small>
                       </div>
                   </div>

Upload

answered on 20 May 2025