SetFocus in VB.NET

How do you SetFocus in VB.NET?  I have a VB.NET application that has a button on the main form called Merge.  When Merge is clicked, there is a loop that reads image files from a directory and (hopefully) displays each image in a new form and allows the user to fill in fields based on data in the image.  I am using the following code to deal with these images one at a time.

 Private Sub btnMerge_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnMerge.Click
        For Each oneFile As String In My.Computer.FileSystem.GetFiles(ImagePath, _
            FileIO.SearchOption.SearchTopLevelOnly, "*.TIF")
            frmMergeIC.ImageFile = oneFile

            frmMergeIC = New frmMergeIC
            frmMergeIC.Enabled = True
            frmMergeIC.Show()
            frmMergeIC.Focus()
        Next
    End Sub

In the frmMergeIC form there is a button called Exit.  My intent is for the user to work on the form until they are done and then they click Exit.
 Private Sub btnExit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExit.Click
        Me.Hide()
        Me.Dispose()
        frmMain.Show()
        frmMain.Focus()
    End Sub

What is happening is several copies of the frmMergeIC form are displayed in a cascade.  How do you set focus to a secondary form and leave it there?
Start Free Trial