本节看看如何用代码增、删选项卡等操作。

增加选项卡：

    Private Sub Button2_Click(sender As Object,e As EventArgs) Handles Button2.Click
        Dim tabpagename As String
        tabpagename = InputBox("输入选项卡名称")

        Dim newtabpage As New TabPage()
        newtabpage.Text = tabpagename
        newtabpage.ImageIndex = 1

        TabControl1.TabPages.Add(newtabpage)
    End Sub

    Private Sub Button6_Click(sender As Object,e As EventArgs) Handles Button6.Click
        Dim tabpagename As String
        tabpagename = InputBox("输入选项卡名称")

        Dim newtabpage As New TabPage()
        newtabpage.Text = tabpagename
        newtabpage.ImageIndex = 0

        TabControl1.TabPages.Insert(TabControl1.SelectedIndex,newtabpage)

    End Sub

    Private Sub Button3_Click(sender As Object,e As EventArgs) Handles Button3.Click
        TabControl1.TabPages.RemoveAt(TabControl1.SelectedIndex)
    End Sub

清除所有选项卡：

    Private Sub Button4_Click(sender As Object,e As EventArgs) Handles Button4.Click
        TabControl1.TabPages.Clear()
    End Sub

在当前选项卡上增加控件：

    Private Sub Button5_Click(sender As Object,e As EventArgs) Handles Button5.Click
        Dim currenttabpage As New TabPage
        currenttabpage = TabControl1.SelectedTab
        Dim btnControl As New Button
        btnControl.Left = 100
        btnControl.Top = 50
        btnControl.Text = "按钮" & TabControl1.SelectedIndex
        currenttabpage.Controls.Add(btnControl)

    End Sub

设置选中的选项卡：

    Private Sub Button7_Click(sender As Object,e As EventArgs) Handles Button7.Click
        TabControl1.SelectedIndex = 0  ‘选项卡索引，从0开始
    End Sub

运行效果：

由于.net平台下C#和vb.NET很相似，本文也可以为C#爱好者提供参考。

学习更多vb.net知识，请参看vb.net 教程 目录