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8.8

How to correctly use a progress bar while a long task is running visual studio 2008

Asked by tentavarious in .NET Framework 3.x versions, Microsoft Visual Basic.Net, Visual Studio

Tags: microsoft visual studio 2008, vb.net, .net 3.5

Hello experts I have a task that runs when my programs main form loads.  The task queries our database and dynamically creates panels and adds them to a number of flowlayoutpanel controls.  This process can take some time so I want a progress bar to show up while the records are being loaded.  I can't quite get the progress bar to function, its like nothing will work until the main task is complete.  I am new to visual studio 2008, so am I doing something wrong.  In 2003, I could use a timer or a system.thread.timer.  Any ideas?
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Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
          tloading.Start() 'Timer that controls the progress bar
        record_loading_status = True
        Application.DoEvents()
        build_query() 'This is the main task didnt think i would need to show this procedure
        tloading.Stop()
        record_loading_status = False
        Me.ss_status_text.Text = "Ready!"
        ss_progress_bar.Visible = False
    End Sub
 
 Private Sub tloading_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tloading.Tick
        If record_loading_status Then
            If Me.ss_progress_bar.Value < ss_progress_bar.Maximum Then
                  ss_progress_bar.Increment(10)
            Else
                ss_progress_bar.Value = 0
            End If
        End If
    End Sub
 
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About this solution

Zones: .NET Framework 3.x versions, Microsoft Visual Basic.Net, Visual Studio
Tags: microsoft visual studio 2008, vb.net, .net 3.5
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Solution Provided By: CraigWagner
Participating Experts: 3
Solution Grade: A
 
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