自定义标签的TabPage像工艺流程箭头在Microsoft Dynamics CRM 2015年(

我希望我的TabControl的Windows窗体应用程序看起来是这样的： https://technet.microsoft.com/en-us/library/dn531164.aspx

我有一个具有工艺流程的应用程序，并且每个TabPage的是，我希望这些漂亮的箭头来表示进程阶段。我知道的OnPaint和System.Drawing中，但我不能让这些标签看起来体面。

我试图处理TabControl.DrawItem事件，并画一个箭头，但我不满意的样子。

private void tabControl1_DrawItem(object sender, DrawItemEventArgs e)
{
    Rectangle rect = e.Bounds;

    int offset = 10;
    Point p1 = e.Bounds.Location;
    Point p2 = new Point(e.Bounds.X + e.Bounds.Width - offset, e.Bounds.Y);
    Point p3 = new Point(e.Bounds.X + e.Bounds.Width, e.Bounds.Y + (e.Bounds.Height / 2));
    Point p4 = new Point(p2.X, e.Bounds.Bottom);
    Point p5 = new Point(e.Bounds.X, e.Bounds.Y+e.Bounds.Height);
    Point p6 = new Point(e.Bounds.X + offset, p3.Y);

    GraphicsPath path = new GraphicsPath();

    path.AddLine(p1, p2);
    path.AddLine(p2, p3);
    path.AddLine(p3, p4);
    path.AddLine(p4, p5);
    path.AddLine(p5, p6);
    path.AddLine(p6, p1);
    e.Graphics.FillPath(Brushes.Black, path);
};

是否有任何其他的办法，使这项工作描述？

有时我发疯和乐趣只需拿起一个挑战:-)

下面是结果：

我叠加TabControl tabControl1用Panel tp 。（不要挑好名字！）请注意，这必须较晚发生，否则TabControl将弹出到顶部。

我打电话给他们的命令Shown事件：

private void Form1_Shown(object sender, EventArgs e)
{
    tp.BringToFront();
    tabControl1.SendToBack();
}

你也许可以创建Panel在设计，以避免这些运动..

除了Panel我需要一个List<GraphicsPath>其既用于绘制和精确命中测试使用..：

Panel tp = null;
List<GraphicsPath> tabAreas = new List<GraphicsPath>();

你可以调用这个函数来准备这两个Panel和List ：

void makeTabPanel(TabControl tab)
{
    tp = new Panel();
    tp.Size = new Size(tab.Width, tab.ItemSize.Height);
    tp.Paint += tp_Paint;
    tp.MouseClick += tp_MouseClick;
    tp.Location =  tab.Location;
    tab.Parent.Controls.Add(tp);

    int tabs = tabControl1.TabPages.Count;
    float w = tabControl1.Width / tabs;
    float h = tp.Size.Height;
    float y0 = 0;    float y1 = h / 2f;    float y2 = h;
    float d = 5;          //  <--- this is the gap
    float e = 8;          //  <- this is the extrusion
    float w1 = w - d;
    tabAreas = new List<GraphicsPath>();
    for (int t = 0; t < tabs; t++)
    {
        int t1 = t + 1;
        float e1 = t == 0 ? 0 : e;    // corrections for start and end..
        float e2 = t == tabs - 1 ? 0 : e;
        float e3 = t == tabs - 1 ? d : 0;
        List<PointF> points = new List<PointF>();
        points.Add(new PointF(t * w, y0));
        points.Add(new PointF(t1 * w - d + e3, y0));
        points.Add(new PointF(t1 * w -d + e2 + e3, y1));
        points.Add(new PointF(t1 * w- d + e3, y2));
        points.Add(new PointF(t * w, y2));
        points.Add(new PointF(t * w + e1, y1));
        GraphicsPath gp = new GraphicsPath(FillMode.Alternate);
        gp.AddPolygon(points.ToArray());
        tabAreas.Add(gp);
    }
}

在此之后，实际情况是相当简单：

void tp_MouseClick(object sender, MouseEventArgs e)
{
    for (int t = 0; t < tabAreas.Count; t++)
    {
        if (tabAreas[t].IsVisible(e.Location) )
           { tabControl1.SelectedIndex = t; break;}
    }
    tp.Invalidate();
}

void tp_Paint(object sender, PaintEventArgs e)
{
    StringFormat fmt = new StringFormat() 
      { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center };

    e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
    e.Graphics.Clear(Color.White);   // **
    float w = tp.Width / tabAreas.Count;
    Size sz = new System.Drawing.Size( (int)w, e.ClipRectangle.Height);
    for (int t = 0; t < tabAreas.Count; t++)
    {
        Rectangle rect = new Rectangle((int)(t * w ), 0, sz.Width, sz.Height);            
        bool selected = tabControl1.SelectedIndex == t ;
        Brush brush = selected ?  Brushes.DarkGoldenrod : Brushes.DarkGray;   // **
        e.Graphics.FillPath(brush, tabAreas[t]);

        e.Graphics.DrawString(tabControl1.TabPages[t].Text,
                tabControl1.Font, Brushes.White, rect, fmt);
    }
}

挑选颜色在这里（**）

更新：使用TextRenderer作为拉斯建议的作品一样好。（至少 ;-）

TextFormatFlags flags = TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter ;
TextRenderer.DrawText(e.Graphics, tabControl1.TabPages[t].Text,
    tabControl1.Font, rect, Color.White, flags);