TabControl TabPage添加关闭按钮

自定义控件代码如下:

using System.Drawing;
using System.Windows.Forms; namespace Demo.UC
{
public class KKTab : TabControl
{
private int IconWOrH = 16;
private Image icon = null; public KKTab()
: base()
{
this.DrawMode = TabDrawMode.OwnerDrawFixed; icon = Demo.Properties.Resources.close;
IconWOrH = icon.Width;
IconWOrH = icon.Height;
} protected override void OnDrawItem(DrawItemEventArgs e)
{
Graphics g = e.Graphics;
Rectangle r = GetTabRect(e.Index);
if (e.Index == this.SelectedIndex) //当前选中的Tab页,设置不同的样式以示选中
{
Brush selected_color = Brushes.SteelBlue; //选中的项的背景色
g.FillRectangle(selected_color, r); //改变选项卡标签的背景色
string title = this.TabPages[e.Index].Text;
g.DrawString(title, this.Font, new SolidBrush(Color.Black), new PointF(r.X , r.Y + 5));//PointF选项卡标题的位置
r.Offset(r.Width - IconWOrH, 2);
g.DrawImage(icon, new Point(r.X, r.Y));//选项卡上的图标的位置 fntTab = new System.Drawing.Font(e.Font, FontStyle.Bold);
}
else//非选中的
{
Brush selected_color = Brushes.AliceBlue; //选中的项的背景色
g.FillRectangle(selected_color, r); //改变选项卡标签的背景色
string title = this.TabPages[e.Index].Text+" ";
g.DrawString(title, this.Font, new SolidBrush(Color.Black), new PointF(r.X , r.Y + 5));//PointF选项卡标题的位置
r.Offset(r.Width - IconWOrH, 2);
g.DrawImage(icon, new Point(r.X, r.Y));//选项卡上的图标的位置
}
} protected override void OnMouseClick(MouseEventArgs e)
{
Point point = e.Location;
Rectangle r = GetTabRect(this.SelectedIndex);
r.Offset(r.Width - IconWOrH - 3, 2);
r.Width = IconWOrH;
r.Height = IconWOrH;
if (r.Contains(point)) this.TabPages.RemoveAt(this.SelectedIndex);
}
}
}

注意:使用方式:界面加载需处理TabPage Text属性

 foreach (TabPage item in this.kkTab1.TabPages)
{
item.Text = item.Text + " ";
}

运行效果如下:

TabControl TabPage添加关闭按钮

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