using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Text;
using System.Windows.Forms;
using System.Collections;
namespace sxu
{
[ProvideProperty("AllowKeyTab", typeof(Component))]
public partial class KeyTab : Component, IExtenderProvider
{
public Keys NextK;
public Keys PreviousK;
Hashtable _hashTable = new Hashtable();
Constructor
属性AllowKeyTab
/// <summary>
/// 用于属性检索
/// </summary>
/// <param name="component"></param>
/// <returns></returns>
public bool GetKeyTab(Component component)
{
if (_hashTable.Contains(component))
{
return (bool)_hashTable[component];
}
return false;
}
private void currentC_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == this.NextK)
{
SendKeys.Send("{TAB}");
}
else if (e.KeyCode == this.PreviousK)
{
SendKeys.Send("+{TAB}");//发送shift+tab
}
}
public bool CanExtend(object component)
{
//必须是普通控件(排出Form)才支持扩展
if (component is Control && !(component is Form))
{
return true;
}
return false;
}
}
}
在Form中的加入如下代码:
using System.ComponentModel;
using System.Diagnostics;
using System.Text;
using System.Windows.Forms;
using System.Collections;
namespace sxu
{
[ProvideProperty("AllowKeyTab", typeof(Component))]
public partial class KeyTab : Component, IExtenderProvider
{
public Keys NextK;
public Keys PreviousK;
Hashtable _hashTable = new Hashtable();
Constructor
属性AllowKeyTab
/// <summary>
/// 用于属性检索
/// </summary>
/// <param name="component"></param>
/// <returns></returns>
public bool GetKeyTab(Component component)
{
if (_hashTable.Contains(component))
{
return (bool)_hashTable[component];
}
return false;
}
private void currentC_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == this.NextK)
{
SendKeys.Send("{TAB}");
}
else if (e.KeyCode == this.PreviousK)
{
SendKeys.Send("+{TAB}");//发送shift+tab
}
}
public bool CanExtend(object component)
{
//必须是普通控件(排出Form)才支持扩展
if (component is Control && !(component is Form))
{
return true;
}
return false;
}
}
}
private void Form1_Load(object sender, EventArgs e)
{
this.keyTab1.NextK = Keys.Down;
this.keyTab1.PreviousK = Keys.Up;
}
{
this.keyTab1.NextK = Keys.Down;
this.keyTab1.PreviousK = Keys.Up;
}
程序代码请下载