在TableLayoutPanel中添加1000个控件

Question

我在运行时在TableLayoutPanel中添加了1000个组控件。执行后，它会在相应的行中显示大约300个控件。在第300行之后，添加了行，但是相应添加的行中的控件不可见。

我的编程代码/逻辑是这样的：

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load

    Dim tableLayoutPanel As New TableLayoutPanel
    tableLayoutPanel.Dock = DockStyle.Fill
    tableLayoutPanel.AutoScroll = True
    tableLayoutPanel.RowCount = 1000

    For i = 0 To 999

        Dim groupCtrl As New DevExpress.XtraEditors.GroupControl
        groupCtrl.Text = String.Format("Group Control {0}", i)
        groupCtrl.Dock = DockStyle.Fill
        groupCtrl.Visible = True
        groupCtrl.Enabled = True

        tableLayoutPanel.Controls.Add(groupCtrl, 0, i)

    Next

    Dim c = tableLayoutPanel.Controls.Count

    Me.Controls.Add(tableLayoutPanel)

End Sub

如何查看TableLayoutPanel中的所有控件？