视图的加载过程有点慢，我想加入一个进度条，请问该如何操作？

DataGridView1.DataSource = myDataview
这个加载过程有点慢，我想加入一个进度条，请问该如何操作？ --------------------编程问答-------------------- 怎么没人回答呢？难道我的问题问得不好？ --------------------编程问答-------------------- DataGridView1.DataSource = myDataview
加入一个进度条，可能需要记录总量，而且每获取一个记录需要刷新一次，不建议这样做；
建议加入一个loadingGIF；
具体多线程，MSDN里面好多。 --------------------编程问答-------------------- 请问这个多线程该如何使用啊？ --------------------编程问答-------------------- Option Explicit On
Option Strict On

Imports System.Threading

' Our custom delegate.
Public Delegate Function BinaryOp(ByVal x As Integer, _
ByVal y As Integer) As Integer

Module Program
  Sub Main()
    Console.WriteLine("***** Async Delegate Invocation *****")
    Console.WriteLine()

    ' Print out the ID of the executing thread.
    Console.WriteLine("Main() invoked on thread {0}.", _
      Thread.CurrentThread.ManagedThreadId)

    ' Invoke Add() on a secondary thread.
    Dim b As BinaryOp = New BinaryOp(AddressOf Add)
    Dim itfAR As IAsyncResult = b.BeginInvoke(10, 10, Nothing, Nothing)

    While Not itfAR.AsyncWaitHandle.WaitOne(2000, True)
      ' Do other work on primary thread...
      Console.WriteLine("Doing more work in Main()!")
      Thread.Sleep(1000)
    End While

    ' Obtain the result of the Add()
    ' method when ready.
    Dim answer As Integer = b.EndInvoke(itfAR)
    Console.WriteLine("10 + 10 is {0} .", answer)
    Console.ReadLine()
  End Sub

  Function Add(ByVal x As Integer, ByVal y As Integer) As Integer
    ' Print out the ID of the executing thread.
    Console.WriteLine("Add() invoked on thread {0}.", _
      Thread.CurrentThread.ManagedThreadId)

    '  Pause to simulate a lengthy operation.
    Thread.Sleep(5000)
    Return x + y
  End Function
End Module --------------------编程问答-------------------- 不太清楚  拜帖學習一下 --------------------编程问答-------------------- 请问wl58796351前辈，您写的程序应该新建什么项目实现，好像不是用windows窗体控件实现的？ --------------------编程问答--------------------     Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
        Dim a As Integer
        Thread.Sleep(1000)
        BackgroundWorker1.ReportProgress(a)
        DataGridView1.DataSource = myDataview
    End Sub
用backgroundworker来解决，在dowork过程中仍然提示：
Cross-thread operation not valid: Control 'DataGridView1' accessed from a thread other than the thread it was created on.
如果datagridview1被看成控件，对于dowork过程不能操作控件的要求，那岂不是用backgroundworker无法来解决些问题？？？？？？

补充：.NET技术 ,  VB.NET