vb.net 动态开启指定form及 指定windowStatus-异常

Question

Private Sub ShowForm(ChildFormName As String, FormText As String, FormName As String)
Dim ChilForm As Form = New Form()
ChilForm = CType(Activator.CreateInstance(Type.GetType("WinFormVB01." & ChildFormName)), Form)
ChilForm.MdiParent = Me
ChilForm.Text = FormText
ChilForm.Name = FormName
ChilForm.WindowState = FormWindowState.Maximized
ChilForm.Show()
End Sub

    现在使用此代码，有一个问题，会再跑出第二个新的窗体，但不是我要效果
    我希望效果是已经打开的视窗，如果再点的话
            如果下层，会跑到最上层

Answer 1

已经打开的窗口会保存在Application.OpenForms里
For Each f In Application.OpenForms
if f.Text = FormText Then
f.Show()
End if
next