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Radprogress bar not showing on long page executions

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ProgressArea

This is a migrated thread and some comments may be shown as answers.

Robert asked on 24 May 2016, 01:45 AM

I am trying to use the RadProgressArea to show a progress bar for processing 100,000+ records.

It worked fine in my sample application but when deploying it failed to show. I narrowed down the problem to tasks that occur prior to this progress bar loop that take upwards of 12 seconds. Then after some testing I found that if I manually add a .Sleep() to the thread for anything more than 5 seconds (to simulate the delay) it would cause the RadProgressArea to not show at all. Basically if I take the Telerik example and simply add a 6s delay in front of it then it never works.

Am I missing something obvious here? Thank you in advance for my sanity.

System.Threading.Thread.Sleep(5000) ' ANYTHING 5s OR HIGHER MAKES PROGRESS BAR NEVER SHOW

' initialize variables

Dim progress As RadProgressContext = RadProgressContext.Current

' loop through records

For i As Integer = 0 To TotalRecords - 1

' update progress bar

UpdateProgressBar(progress, dtStarted, TotalRecords, i)

' SOME WORK STUFF GOES HERE

Next

4 Answers, 1 is accepted

answered on 24 May 2016, 10:36 PM

Just a bump to see if I can get an answer on this for a time sensitive project.

So ignoring the previous details, if I simply take the sample Telerik example at http://demos.telerik.com/aspnet-ajax/progressarea/ and add a 6 second delay *before* the logic takes place then the progress window never shows up.

Any help is greatly appreciated

Protected Sub buttonSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles buttonSubmit.Click

UpdateProgressContext()

End Sub

Private Sub UpdateProgressContext()

Const Total As Integer = 100

'Stall the current thread for 6 seconds (THIS BREAKS THE PROCESS, NO WINDOW SHOWS UP)

System.Threading.Thread.Sleep(6000)

Dim progress As RadProgressContext = RadProgressContext.Current

progress.Speed = "N/A"

For i As Integer = 0 To Total - 1

progress.PrimaryTotal = 1

progress.PrimaryValue = 1

progress.PrimaryPercent = 100

progress.SecondaryTotal = Total

progress.SecondaryValue = i

progress.SecondaryPercent = i

progress.CurrentOperationText = "Step " & i.ToString()

progress.TimeEstimated = (Total - i) * 100

'Stall the current thread for 0.1 seconds

System.Threading.Thread.Sleep(100)

Next

End Sub