C产品在市场上有哪些独特优势？

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原文：本文字实例讲述了C语言。

改写后：本文通过实例展示C语言知识。

本文实例讲述了C#更改tabControl选项卡颜色的方法。分享给大家供大家参考，具体如下：

private void Form1_Load(object sender, EventArgs e) { this.tabControl1.DrawMode = System.Windows.Forms.TabDrawMode.OwnerDrawFixed; this.tabControl1.DrawItem += new DrawItemEventHandler(this.tabControl1_DrawItem); } private void tabControl1_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e) { StringFormat sf = new StringFormat(); sf.LineAlignment = StringAlignment.Center; sf.Alignment = StringAlignment.Center; if (e.Index == tabControl1.SelectedIndex) e.Graphics.FillRectangle(Brushes.Red, e.Bounds.X, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height); else e.Graphics.FillRectangle(Brushes.White, e.Bounds.X, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height); e.Graphics.DrawString(((TabControl)sender).TabPages[e.Index].Text, System.Windows.Forms.SystemInformation.MenuFont, new SolidBrush(Color.Black), e.Bounds, sf); }

1.在Form类的构造函数中添加下列语句:

this.tabControl1.DrawMode = System.Windows.Forms.TabDrawMode.OwnerDrawFixed; this.tabControl1.DrawItem += new DrawItemEventHandler(this.tabControl1_DrawItem);

2.实现下列函数:

private void tabControl1_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e) { Font fntTab; Brush bshBack; Brush bshFore; if ( e.Index == this.tabControl1.SelectedIndex) { fntTab = new Font(e.Font, FontStyle.Bold); bshBack = new System.Drawing.Drawing2D.LinearGradientBrush(e.Bounds, SystemColors.Control, SystemColors.Control, System.Drawing.Drawing2D.LinearGradientMode.BackwardDiagonal); bshFore = Brushes.Black; } else { fntTab = e.Font; bshBack = new SolidBrush(Color.Blue ); bshFore = new SolidBrush(Color.Black); } string tabName = this.tabControl1.TabPages[e.Index].Text; StringFormat sftTab = new StringFormat(); e.Graphics.FillRectangle(bshBack, e.Bounds); Rectangle recTab = e.Bounds; recTab = new Rectangle( recTab.X, recTab.Y + 4, recTab.Width, recTab.Height - 4); e.Graphics.DrawString(tabName, fntTab, bshFore, recTab, sftTab); }

更多关于C#相关内容感兴趣的读者可查看本站专题：《C#数据结构与算法教程》、《C#常见控件用法教程》、《C#面向对象程序设计入门教程》及《C#程序设计之线程使用技巧总结》

希望本文所述对大家C#程序设计有所帮助。