Showing Progress Ring Control while navigating from one page to another

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Windows-Store

Hello Guyz,

I need to show the Progress Ring Control while navigating from one page to another page.

Below is the code that I have tried..

Protected Overrides Sub LoadState(navigationParameter As Object, pageState As Dictionary(Of String, Object))
        Me.ShowProgressGrid.Begin()
        Try
            pageTitle.Text = "Survey Rooms"
            txtSurveyor.Text = If(String.IsNullOrEmpty(GSurveyorName), g_emailid, GSurveyorName)
            AssignClientData()
            CreatetblXMLSurvey()
            PopulateCombo()
            AssignValues()
            ApplySearch(String.Empty)
            itemGridView.SelectedIndex = -1
        Catch ex As Exception
        Finally
            Me.HideProgressGrid.Begin()
            
        End Try
    End Sub

Need help Please..