主题：[求助]提示已添加了具有相同键的项

全局代码

Public Sub _TabPageClosing(sender As Object, e As C1.Win.C1Command.TabPageCancelEventArgs)
'页面关闭按钮点击事件
If e.TabPage.Name = "主页" Then
    MessageBox.Show("主页不能关闭!")
    e.Cancel = True
Else
    Dim frm As WinForm.Form = Forms(Sender.parent.name)
    Dim ls As new List(of String)
    For Each c As object In e.tabpage.controls
        If c.Gettype.name.contains("o__o_00_") Then
            c.visible = False            
            'msgbox(1)
        End If
        ls.add(c.name)
    Next
    For Each s As String In ls       
        frm.removeControl(s)
    Next
End If
End Sub