c# tabcontrol 隐藏索引标签,代码是现成的组件

using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace Dotnetrix.Samples.CSharp
{
[ToolboxBitmap(typeof(System.Windows.Forms.TabControl))]
public class TabControl : System.Windows.Forms.TabControl
{
private bool m_HideTabs = false;

[DefaultValue(false)]
[RefreshProperties(RefreshProperties.All)]
public bool HideTabs
{
get{return m_HideTabs;}
set
{
if (m_HideTabs == value) return;
m_HideTabs = value;
if (value == true) this.Multiline = true;
this.UpdateStyles();
}
}

[RefreshProperties(RefreshProperties.All)]
public new bool Multiline
{
get
{
if (this.HideTabs) return true;
return base.Multiline;
}
set
{
if (this.HideTabs)
base.Multiline = true;
else
base.Multiline = value;
}
}

public override System.Drawing.Rectangle DisplayRectangle
{
get
{
if (this.HideTabs)
return new Rectangle(0, 0, Width, Height);
else
{
int tabStripHeight, itemHeight;

if (this.Alignment <= TabAlignment.Bottom)
itemHeight = this.ItemSize.Height;
else
itemHeight = this.ItemSize.Width;

if (this.Appearance == TabAppearance.Normal)
tabStripHeight = 5 + (itemHeight * this.RowCount);
else
tabStripHeight = (3 + itemHeight) * this.RowCount;

switch (this.Alignment)
{
case TabAlignment.Bottom:
return new Rectangle(4, 4, Width - 8, Height - tabStripHeight - 4);
case TabAlignment.Left:
return new Rectangle(tabStripHeight, 4, Width - tabStripHeight - 4, Height - 8);
case TabAlignment.Right:
return new Rectangle(4, 4, Width - tabStripHeight - 4, Height - 8);
default:
return new Rectangle(4, tabStripHeight, Width - 8, Height - tabStripHeight - 4);
}

}

}

}

}
}