任何人都可以告诉我如何将项目/控件添加到metroTabControl(windows窗体)?每当我试图与Visual Studio 2013的设计师这样做,它抛出这个错误: Cannot add 'MetroLabel' to TabControl. Only TabPages can be directly added to TabControls
我得到这个类在Visual Basic中: class Dumbo
Inherits System.Windows.Forms.UserControl
Me.DataSet = New DataSet
Me.BS = new System.Windows.Forms.BindingSource
Sub New()
Me.BS.DataMember =