WPF VB.Net ProgressBar updating in an Async Method - wpf

Question

I've seen a few other posts about this but I seem to be confused since I've seen it done several ways and haven't gotten it correct any of the ways, so I thought I would ask specifically for my case so I can learn what I am doing wrong. After learning and switching to C# for most of my programming, VB.net seems so clunky in its syntax with a lot of things, especially lambda and "on-the-fly" functions.
I have a long running task for a football game I am working on where it generates players. Its an async method utilizing the Task.Factory.StartNew method.
Here is the pertinent code:
Private Sub CreateDraft_Click(sender As Object, e As RoutedEventArgs) Handles CreateDraft.Click
TimeIt(Sub() ReallyGenNewPlayers())
End Sub
'Uses a stopwatch to time how long it takes and sends to console.
Private Sub TimeIt(MyAction As Action)
Dim SW As New Stopwatch
SW.Start()
MyAction()
Console.WriteLine($"Total Time Generating Players: {SW.Elapsed} seconds")
SW.Stop()
End Sub
Private Async Sub GenNewPlayersASync()
Dim myvalue = 0
'Generate the Players on an Async Thread
Dim x As Integer
For i As Integer = 1 To NumPlayers
x = i 'avoids issue with using the iteration variable inside the delegate
CollegePlayers.GenDraftPlayers(i, MyDraft, DraftDT, DraftClass, PosCount)
'Prog_ValueChanged(DBNull.Value, New RoutedPropertyChangedEventArgs(Of Double))
'Calls a delegate to update the progress bar to avoid having the variable locked by the background thread
Dispatcher.Invoke(Sub()
worker.ReportProgress((x / NumPlayers) * 100)
End Sub)
Next i
End Sub
'Creates a task to run the player generation code and wait til its finished
Private Sub ReallyGenNewPlayers()
Dim mytask = Task.Factory.StartNew(Sub() GenNewPlayersASync())
Task.WaitAll(mytask)
End Sub
So here is what I would like to do:
I have a progressbar I created in XAML that has a Progress_Changed Event. This is what I have for it so far based on another post, but the issue is when I have to call the function inside GenNewPlayersAsync() where it wants a RoutedPropertyChangeEventArgs as a double which I'm not exactly sure what to do...I tried creating one using .New(old value, new value) but that didn't work either and threw an error.
Public Async Sub Prog_ValueChanged(sender As Object, e As RoutedPropertyChangedEventArgs(Of Double))
Dim progress = New Progress(Of Integer)(Function(percent)
Prog.Value = e.NewValue
Return Prog.Value
End Function)
Await Task.Run(Sub() DoProcessing(progress))
End Sub
Public Sub DoProcessing(progress As IProgress(Of Integer))
Dim i As Integer = 0
While i <> 100
Thread.Sleep(100)
' CPU-bound work
If progress IsNot Nothing Then
progress.Report(i)
End If
End While
End Sub
I would like for the progressbar to be bound to an INotifyChanged Property and update itself automatically when the value gets changed. None of it seems to be working. The UI is still unresponsive and when I set different parts to ASync, I start getting Exceptions where it appears certain parts of the generation algorithm aren't working as they are returning null...very confused with all of this, and I am sure the answer is probably pretty simple...
If you guys could give several examples of different ways to get this to work so I can learn different methods and maybe state the pros and cons of the method I would greatly appreciate it...