I have a relatively long running task and would like to show a Dialog box informing the user stuff is happening with a ProgressBar to show completion progress. However when the ProgressBar is in DialogContent it is not updating the UI when I update the Value of the progressbar.

If I put the progressbar in the body of the page it works as expected.

Razor Code is something like:

<TelerikDialog @bind-Visible="@DialogVisible"
               Width="500px"   
               ShowCloseButton="false"
               CloseOnOverlayClick="false">
    <DialogTitle>Updating</DialogTitle>
    <DialogContent>
        <p>Assigning stuff...</p>
         <TelerikProgressBar Value="@ProgressValue" Max="100"></TelerikProgressBar>
    </DialogContent>
</TelerikDialog>

Then code is:

@code {
	private bool DialogVisible { get; set; } = false;
	private double ProgressValue = 0;

	private async void ButtonClick()
	{
		DialogVisible = true;

		for (var i = 0; i < 20; i++)
		{
			ProgressValue = Math.Round((double)i / 20 * 100);
			StateHasChanged();
			await Task.Delay(1000);
		}
	}
}

I recall being told I would have access to source code once I buy a licence.

Now that I have a licence, how do I get access to the source so I can do a local build?

Hello,

I have a scenario where I have a Telerik Notification with a Telerik progress bar embedded.  I am looking to update the progress bar of multiple instances of the notification independently based in separate threads.

Would this be possible?

Thanks,

Tony

Hello,

I am trying to implement a progress bar while importing an excel file. The progress bar does not work, I implement the sample within my code and its not working anyway.

Here is the code :

@page "/administration/excel"

@inject HttpClient httpClient
@inject IJSRuntime jSRuntime

@implements IDisposable

@using System.Timers

@using XxxPathie.Libraries.Shared.Models.Tools;
@using XxxPathie.Libraries.Ui.Tools.Network;

<h3>Tools</h3>

<label for="specialites">Spécialités</label>
<InputFile id="specialites" OnChange="OnSpecialitesChange">Specialités</InputFile>
<br />
<label for="motscles">Mots clés</label>
<InputFile id="motscles" OnChange="OnMotsClesChange">Mots clés</InputFile>

<br />
<label for="principesactifs">Principes actifs</label>
<InputFile id="principesactifs" OnChange="OnPrincipesActifsChange">Principes actifs</InputFile>

<br />
<label for="preparations">Préparations</label>
<InputFile id="preparations" OnChange="OnPreparationsChange">Préparations</InputFile>

<br />
<br />

<TelerikProgressBar @ref="progressBar" Value="@progressValue" Max="progressMax"></TelerikProgressBar>

<TelerikProgressBar Value="@ProgressValue" Max="100"></TelerikProgressBar>

@code {
    TelerikProgressBar progressBar;
    Timer timer = new();
    ExcelFile progress = new();
    double progressValue = 0;
    double progressMax = 1000;
    bool refresh = false;

    public void Dispose()
    {
        StopProgress();
        Timer?.Close();
    }

    protected override void OnAfterRender(bool firstRender)
    {
        if (Timer.Enabled == false)
        {

            Timer.Start();
        }
    }

    public void OnTimerElapsed(Object source, ElapsedEventArgs e)
    {
        if (ProgressValue < 100)
        {
            UpdateProgress();
        }
        else
        {
            StopProgress();
        }
    }

    public void UpdateProgress()
    {
        ProgressValue += ProgressStep;

        InvokeAsync(StateHasChanged);
    }

    public void StopProgress()
    {
        Timer?.Stop();
    }

    public const int TimerInterval = 1000;
    public const int TotalTime = 10 * TimerInterval;
    public double ProgressValue = 0;
    public int ProgressStep = 100 / (TotalTime / TimerInterval);
    public Timer Timer { get; set; } = new Timer();

    private async void OnSpecialitesChange(InputFileChangeEventArgs args)
    {
        await ManageDownload(args.File, "excel/specialites", "Spécialités.xlsx");
    }

    private async void OnMotsClesChange(InputFileChangeEventArgs args)
    {
        await ManageDownload(args.File, "excel/motscles", "Mots clés.xlsx");
    }

    private async void OnPrincipesActifsChange(InputFileChangeEventArgs args)
    {
        await ManageDownload(args.File, "excel/principesactifs", "Principes actifs.xlsx");
    }

    private async void OnPreparationsChange(InputFileChangeEventArgs args)
    {
        await ManageDownload(args.File, "excel/preparations", "Préparations.xlsx");
    }

    private async Task ManageDownload(IBrowserFile file, string url, string fileName)
    {
        byte[] bytes = new byte[file.Size];

        using (var stream = file.OpenReadStream(250 * 1024 * 1024))
        {
            await stream.ReadAsync(bytes, 0, bytes.Length);
        }

        progress = await RestClient.Instance.PostAsync<ExcelFile>(httpClient, url, bytes);

        progressValue = 0;
        progressMax = progress.MaxCount;

        refresh = !refresh;

        timer.Stop();
        timer.Interval = 200;
        timer.AutoReset = true;
        timer.Elapsed -= ProgressPlease;
        timer.Elapsed += ProgressPlease;
        timer.Start();
    }

    private void ProgressPlease(Object source, ElapsedEventArgs e)
    {
        progressValue++;
        progressMax = 1000;
    }

    private async Task ProgressReport(ExcelFile progress, string fileName)
    {
        try
        {
            for (; ; )
            {
                progress = await PoolProgress(progress, "fileName");
                progressMax = progress.MaxCount;
                progressValue = progress.DoneCount;
            }
        }
        catch (Exception exception)
        {
            var breakime = 1;
        }
    }

    private async Task<ExcelFile> PoolProgress(ExcelFile progress, string fileName)
    {
        progress = await RestClient.Instance.GetAsync<ExcelFile>(httpClient, "excel/progress/" + progress.Identifier);

        if (progress.DoneCount == progress.MaxCount && progress.bytes != null)
        {
            var href = httpClient.BaseAddress + progress.Identifier.ToString();
            await jSRuntime.InvokeAsync<object>("triggerFileDownload", fileName, href);

            throw new Exception("OK");
        }
        else if (progress.Identifier == Guid.Empty)
        {
            return progress;
        }
        else if (progress.DoneCount == progress.MaxCount)
        {
            throw new Exception("OK");
        }

        return progress;
    }
}

Is there a way to format the color of TelerikProgressBar based off data?  

I see you can set the Class on that item, however it does not apply background-color to the fill of the bar.

I've found that I can modify all bars by setting the following css:

.k-progressbar .k-state-selected {

       background-color:green;
    }

Thanks!

I have the following scenario:

- file download from a site;

- process records on file to store in a database.

The first take about 4 seconds and the second around a minute or a little more.

Followed the sample of ProgressBar to signal that records are being processed, however, the UI is not being updated. 

The environment is Blazor with .NET 5.04 and the latest version of UI for Blazor

Below is the Razor component where the data is handled.

Any suggestions on how to update the UI and reflect the current status?

Thanks

@page "/importPeers"
@using DataLoader.Models
@using DataLoader.Services
@using System.Timers
@implements IDisposable
@inject LoadDataFIService service

<h1>CVM FI Download</h1>

<p>componente para realizar o download de informações da CVM e carga no banco de dados</p>
<hr />
<br />

<div class="row">
    <div class="col-sm-8 col-md-8">
        <div class="row">
            <div class="col-sm-6 col-md-6">
                <span>
                    Mês Referência:
                    <TelerikDatePicker @bind-Value="@selectedDate"
                                       BottomView="@CalendarView.Year"
                                       Format="MMM yyyy">
                    </TelerikDatePicker>
                </span>
            </div>
            <div class="col-sm-3 col-md-3">
                <TelerikButton OnClick="@OnProcessDataClick">Processar</TelerikButton>
            </div>
        </div>
    </div>
</div>
<br />
<div class="row">
    <div class="col-sm-8 col-md-8">
        @processingAction
        <br />
        <TelerikProgressBar Indeterminate="@isIndeterminate" Value="@CurrentValue" Max="@MaxValue" />
    </div>
</div>
@currentCount importados...
<hr />




@code {
    public string processingAction { get; set; }
    public bool isIndeterminate { get; set; } = false;
    public int progressValue { get; set; } = 0;
    DateTime selectedDate { get; set; } = DateTime.Now;
    int currentCount = 0;
    public double MaxValue { get; set; } = 100;
    public double CurrentValue { get; set; } = 0;
    public double StepValue { get; set; } = 5;
    public Timer Clock { get; set; } = new Timer();

    void OnProcessDataClick()
    {
        currentCount++;
        ProcessData();

    }

    void ProcessData()
    {
        //signal progress bar for download
        processingAction = "Downloading...";
        MaxValue = 5 * 1000;                    // download should take no more than 4 seconds
        StartProgress();

        var result = service.DownloadFile(selectedDate);

        // signal end of downloading
        processingAction = "Downloaded!";
        StopProgress();

        System.Diagnostics.Stopwatch watch = new System.Diagnostics.Stopwatch();

        if (result)
        {
            processingAction = "Processing records...";
            MaxValue = 65 * 1000;       // data processing should last about a minute or more
            StartProgress();
            //watch.Start();

            currentCount = service.ReadCsvFile(selectedDate);

            //watch.Stop();
            processingAction = "Records processed!";
            StopProgress();
        }

        // Console.WriteLine(watch.Elapsed);
    }

    public void Dispose()
    {
        StopProgress();
        Clock?.Close();
    }

    public void StartProgress(int interval = 200)
    {
        if (Clock?.Enabled == false)
        {
            Clock.Interval = interval;
            Clock.Elapsed -= OnClockElapsedEvent;
            Clock.Elapsed += OnClockElapsedEvent;
            Clock.AutoReset = true;
            Clock.Start();
        }
    }

    public void OnClockElapsedEvent(Object source, ElapsedEventArgs e)
    {
        if (CurrentValue < MaxValue)
        {
            UpdateProgress();
        }
        else
        {
            StopProgress();
        }
    }

    public void UpdateProgress()
    {
        CurrentValue += StepValue;
        InvokeAsync(StateHasChanged);
    }

    public void StopProgress()
    {
        Clock?.Stop();
        InvokeAsync(StateHasChanged);
    }

}

Hi Telerik Blazor team and users,

some question regarding the width of the progress bar component:

1. Is it planned to set the width by a property, e.g. Width="100%"?

2. Currently the control width is still the same after the target device is changed by Google developer tools (attached files). Is it a bug?

Regards, Stefan