在www.codeproject.com 看到一个关于重绘tabControl的例了，觉得挺有意思的。照着修改一下,有一些东西自己并没有去改，使得代码很短，同时也有一些功能并没实现的。具休可到http://www.codeproject.com/KB/tabs/flattabcontrol.aspx。

我实现的效果如图：

代码实现

主要是对TabControl实现的重绘,可以通过继承TabControl来重绘。

基本上没什么难度，有兴趣可以试着写一下。

vb.net IC交易网代码如下：

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Imports System.Drawing  
 
Imports System.Drawing.Drawing2D  
 
Imports System.Collections  
 
Imports System.ComponentModel  
 
Imports System.Collections.Generic  
 
Public Class FlatControl  
 
 
 
    Sub New()  
 
 
 
        ' 此调用是 Windows 窗体设计器所必需的。  
 
        InitializeComponent()  
 
 
 
        ' 在 InitializeComponent()  pdf调用之后添加任何初始化。  
 
        SetStyle(ControlStyles.AllPaintingInWmPaint, True)  
 
        SetStyle(ControlStyles.OptimizedDoubleBuffer, True)  
 
        SetStyle(ControlStyles.StandardDoubleClick, True)  
 
        SetStyle(ControlStyles.ResizeRedraw, True)  
 
        SetStyle(ControlStyles.UserPaint, True)  
 
    End Sub 
 
 
 
    Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)  
 
        MyBase.OnPaint(e)  
 
        DrawTagControl(e.Graphics)  
 
    End Sub 
 
    Dim _backColor As Color = SystemColors.Control  
 
    Public Property backColors() As Color  
 
        Get 
 
            Return _backColor  
 
        End Get 
 
        Set(ByVal value As Color)  
 
            _backColor = value  
 
        End Set 
 
    End Property 
 
 
 
    Dim _borderWidth As Integer = SystemInformation.Border3DSize.Width  
 
    Public Property borderWidth() As Integer 
 
        Get 
 
            Return _borderWidth  
 
        End Get 
 
        Set(ByVal value As Integer)  
 
            _borderWidth = value  
 
        End Set 
 
    End Property 
 
 
 
    Dim _borderColor As Color = SystemColors.ControlDark  
 
 
 
 
 
    Public Property borderColor() As Color  
 
        Get 
 
            Return _borderColor  
 
        End Get 
 
        Set(ByVal value As Color)  
 
            _borderColor = value  
 
        End Set 
 
    End Property 
 
    Sub DrawTagControl(ByVal g As Graphics)  
 
        If Me.Visible = False Then 
 
            Exit Sub 
 
        End If 
 
 
 
        Dim BackTabArea As Rectangle = Me.ClientRectangle  
 
        Dim UserArea As Rectangle = Me.DisplayRectangle  
 
 
 
 
 
        'draw AllArea  
 
        Dim BackBrush As New SolidBrush(backColors)  
 
        g.FillRectangle(BackBrush, BackTabArea)  
 
        BackBrush.Dispose()  
 
 
 
 
 
        'draw border   
 
        Dim BrPen As New Pen(borderColor, borderWidth)  
 
        UserArea.Inflate(borderWidth, borderWidth)  
 
        g.DrawRectangle(BrPen, UserArea)  
 
        BrPen.Dispose()  
 
 
 
        If Me.TabCount > 0 Then 
 
 
 
            For i As Integer = 0 To Me.TabCount - 1  
 
                DrawTabs(g, TabPages(i), i)  
 
            Next 
 
 
 
        End If 
 
        If Me.SelectedTab IsNot Nothing Then 
 
            Dim tabPage As TabPage = Me.SelectedTab  
 
            Dim color As Color = tabPage.BackColor  
 
            Dim bpen As New Pen(color)  
 
            UserArea.Offset(1, 1)  
 
            UserArea.Width -= 2  
 
            UserArea.Height -= 2  
 
            g.DrawRectangle(bpen, UserArea)  
 
            UserArea.Width -= 1  
 
            UserArea.Height -= 1  
 
            g.DrawRectangle(bpen, UserArea)  
 
            bpen.Dispose()  
 
        End If 
 
 
 
 
 
 
 
    End Sub 
 
 
 
 
 
    Sub DrawTabs(ByVal g As Graphics, ByVal tabpage As TabPage, ByVal Tindex As Integer)  
 
 
 
        Dim TabArea As Rectangle = Me.GetTabRect(Tindex)  
 
        Dim TabTextArea As RectangleF = Me.GetTabRect(Tindex)  
 
 
 
        Dim point0 As Point  
 
        Dim point1 As Point  
 
        Dim point2 As Point  
 
        Dim point3 As Point  
 
        Dim point4 As Point  
 
        Dim point5 As Point  
 
        Dim point6 As Point  
 
 
 
 
 
        '只写top与下两个方向的  
 
        If Me.Alignment = TabAlignment.Top Then 
 
            point0 = New Point(TabArea.Left + borderWidth, TabArea.Bottom + 2)  
 
            point1 = New Point(TabArea.Left + borderWidth, TabArea.Top + 3)  
 
            point2 = New Point(TabArea.Left + borderWidth + 3, TabArea.Top)  
 
            point3 = New Point(TabArea.Right - 3, TabArea.Top)  
 
            point4 = New Point(TabArea.Right, TabArea.Top + 3)  
 
            point5 = New Point(TabArea.Right, TabArea.Bottom + 2)  
 
            point6 = point0  
 
        ElseIf Me.Alignment = TabAlignment.Bottom Then 
 
            point0 = New Point(TabArea.Left, TabArea.Top + 2)  
 
            point1 = New Point(TabArea.Left, TabArea.Bottom - 3)  
 
            point2 = New Point(TabArea.Left + 3, TabArea.Bottom)  
 
            point3 = New Point(TabArea.Right - 3, TabArea.Bottom)  
 
            point4 = New Point(TabArea.Right, TabArea.Bottom - 3)  
 
            point5 = New Point(TabArea.Right, TabArea.Top + 2)  
 
            point6 = point0  
 
 
 
        End If 
 
 
 
        Dim pt() As Point = New Point() {point0, point1, point2, point3, point4, point5, point6}  
 
        '添充  
 
        Dim bBrush As New SolidBrush(tabpage.BackColor)  
 
        g.FillPolygon(bBrush, pt)  
 
        bBrush.Dispose()  
 
 
 
        Dim pt1() As Point = New Point() {point0, point1, point2, point3, point4, point5}  
 
        '画边  
 
        Dim bpen As New Pen(borderColor, borderWidth)  
 
        g.DrawPolygon(bpen, pt1)  
 
        bpen.Dispose()  
 
 
 
 
 
        'draw Image   
 
        If tabpage.ImageIndex >= 0 Then 
 
            Dim LeftSpace As Integer = 8  
 
            Dim Topspace As Single 
 
            Dim img As Image = ImageList.Images(tabpage.ImageIndex)  
 
            Topspace = (TabTextArea.Height - img.Height) / 2 + 1  
 
            g.DrawImage(img, New PointF(LeftSpace + TabTextArea.X, Topspace))  
 
            TabTextArea.Width = TabTextArea.Width - LeftSpace + img.Width  
 
        End If 
 
 
 
        'drawText   
 
        Dim stringFormat As New StringFormat  
 
        stringFormat.Alignment = StringAlignment.Center  
 
        stringFormat.LineAlignment = StringAlignment.Center  
 
        g.DrawString(TabPages(Tindex).Text, Me.Font, Brushes.Black, TabTextArea, stringFormat)  
 
 
 
    End Sub 
 
 
 
    Private Sub FlatControl_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.SelectedIndexChanged  
 
        Me.Invalidate()  
 
    End Sub 
 
 
 
End Class