private void tabControl1_DrawItem(object sender, DrawItemEventArgs e)

最新推荐文章于 2023-02-15 08:51:35 发布

转载最新推荐文章于 2023-02-15 08:51:35 发布 · 1.7k 阅读

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本文将介绍如何在Windows应用程序中使用自定义图像作为TabControl控件的标签背景，并实现居中显示文本和背景图的技巧。

private void tabControl1_DrawItem(object sender, DrawItemEventArgs e)
        {
            int with = 0;
            int x = 0;
            for (int i = 0; i < tabControl1.TabPages.Count; i++)
            {
                with = tabControl1.TabPages[i].Bounds.Right;

            }
            StringFormat sf = new StringFormat();
            sf.LineAlignment = StringAlignment.Center;
            sf.Alignment = StringAlignment.Center;
            Bitmap b = new Bitmap("G:\\1.jpg");

            e.Graphics.DrawImage(b, e.Bounds); //给tabpage标题背景画图
            Pen p = new Pen(Color.Black);

            e.Graphics.DrawString(((TabControl)sender).TabPages[e.Index].Text, System.Windows.Forms.SystemInformation.MenuFont, new SolidBrush(Color.Black), e.Bounds, sf);
            Rectangle endRec = tabControl1.GetTabRect(tabControl1.TabPages.Count - 1); //最后一个tabpage边框

            Rectangle HeaderBackRect = new Rectangle(new Point(endRec.X + endRec.Width, endRec.Y),
                  new Size(tabControl1.Width - (endRec.X+endRec.Width), tabControl1.Height-tabControl1.TabPages[0].Bounds.Height)); //tabcontrol需要填充的矩形
            e.Graphics.DrawImage(b, HeaderBackRect);
        }