tabcontrol重绘的问题
using System.Drawing;
using System.Windows.Forms;

public class Form1 : Form
{
  private Rectangle tabArea;
  private RectangleF tabTextArea;

  public Form1()
  {
  TabControl tabControl1 = new TabControl();
  TabPage tabPage1 = new TabPage();

  // Allows access to the DrawItem event. 
  tabControl1.DrawMode = TabDrawMode.OwnerDrawFixed;

  tabControl1.SizeMode = TabSizeMode.Fixed;
  tabControl1.Controls.Add(tabPage1);
  tabControl1.ItemSize = new Size(80, 30);
  tabControl1.Location = new Point(25, 25);
  tabControl1.Size = new Size(250, 250);
  tabPage1.TabIndex = 0;
  ClientSize = new Size(300, 300);
  Controls.Add(tabControl1);
  TabPage tabPage2 = new TabPage();
  tabControl1.Controls.Add(tabPage2);
  tabPage2.TabIndex = 1;

  tabArea = tabControl1.GetTabRect(0);
  tabTextArea = (RectangleF)tabControl1.GetTabRect(0);


  tabControl1.DrawItem += new DrawItemEventHandler(DrawOnTab);
  }

  private void DrawOnTab(object sender, DrawItemEventArgs e)
  {
  MessageBox.Show(e.Index.ToString());
  Graphics g = e.Graphics;
  Pen p = new Pen(Color.Red);
  Font font = new Font("Arial", 10.0f);
  SolidBrush brush = new SolidBrush(Color.Red);

  g.DrawRectangle(p, tabArea);
  g.DrawString("tabPage1", font, brush, tabTextArea);
  }

  static void Main()
  {
  Application.Run(new Form1());
  }

  private void InitializeComponent()
  {
  this.SuspendLayout();
   
  this.ClientSize = new System.Drawing.Size(292, 273);
  this.Name = "Form1";
  this.Load += new System.EventHandler(this.Form1_Load);
  this.ResumeLayout(false);

  }

  private void Form1_Load(object sender, System.EventArgs e)
  {

  }
}
我想重绘tabcontrol，但是只有第一个tab得到了重绘，

------解决方案--------------------
因为你的重绘范围始终是第一个tabpage，所以。。。
tabArea = tabControl1.GetTabRect(0);
tabTextArea = (RectangleF)tabControl1.GetTabRect(0);

//DrawOnTab改成这样就可以了
private void DrawOnTab(object sender, DrawItemEventArgs e)
{
Graphics g = e.Graphics;
Pen p = new Pen(Color.Red);
Font font = new Font("Arial", 10.0f);
SolidBrush brush = new SolidBrush(Color.Red);

for (int i = 0; i < tabControl1.TabPages.Count; i++)
{
tabArea = tabControl1.GetTabRect(i);
tabTextArea = (RectangleF)tabControl1.GetTabRect(i);
g.DrawRectangle(p, tabArea);
g.DrawString("tabPage"+(i+1).ToString(),font,brush,tabTextArea);

}

}