web
谢谢大家，无以回报，贴点儿东西吧。
刚才看到下边不少人问给datatable或table添加一个选择框，实际上如果你可以自己做一个webcontrol来实现这个功能，下边是我做的一个带checkbox的webcontrol，由于注释比较全，所以我就不加说明了。
using System;
using System.Collections ;
using System.Web.UI.WebControls ;
using System.Web.UI ;
namespace Bigeagle.Web.WebControls
{
/// <summary>
/// <br>自定义控件，带选择框的Table</br>
/// <br>Author: Bigeagle@163.net</br>
/// <br>Date: 2001/10/10</br>
/// <br>History: 2001/10/10 finished</br>
/// </summary>
/// <remarks>
/// 继承System.Web.UI.WebControls.Table，增加CheckedValue属性，
/// 用于多项选择的场合，返回被选择的CheckTableRow的值的数组
/// </remarks>
public class CheckTable : System.Web.UI.WebControls.Table
{
/// <summary>
/// 是否使用checkbox
/// </summary>
/// <remarks>如果为false则不显示checkbox</remarks>
private bool m_bUseCheck ;
/// <summary>
/// ֵ选择数组
/// </summary>
/// <remarks>返回选定的CheckTableRow的值</remarks>
private ArrayList m_arrCheckedValue ;
/// <summary>
/// 取得选择数组的属性
/// </summary>
/// <remarks>只读属性</remarks>
public ArrayList CheckedValue
{
get
{
return this.m_arrCheckedValue ;
}
}
/// <summary>
/// 存取是否使用checkbox的属性
/// </summary>
public bool UseCheck
{
get
{
return this.m_bUseCheck ;
}
set
{
this.m_bUseCheck = value ;
}
}
/// <summary>
/// 构造函数
/// </summary>
public CheckTable()
{
this.m_arrCheckedValue = new ArrayList() ;
this.m_bUseCheck = true ;
}
/// <summary>
/// 重载父类方法
/// </summary>
/// <param name="e"></param>
protected override void OnLoad(System.EventArgs e)
{
if(this.m_bUseCheck)
{
try
{
for(int i = 0 ; i < this.Rows.Count ; i++)
{
CheckTableRow ctr = (CheckTableRow)this.Rows[i] ;
CheckBox cb = (CheckBox)ctr.FindControl(ctr.Value) ;
if(cb.Checked)
{
this.m_arrCheckedValue.Add(ctr.Value) ;
}
}
}
catch(Exception) //一般出现异常是因为有重复的控件id
{
throw(new Exception("出现重复的控件id")) ;
}
}
}//end method
}//end class
}//end method
using System;
using System.Web.UI.WebControls ;
using System.Web.UI ;
namespace Bigeagle.Web.WebControls
{
/// <summary>
/// <br>自定义控件，带选择框的TableRow</br>
/// <br>Author: Bigeagle@163.net</br>
/// <br>Date: 2001/10/10</br>
/// <br>History: 2001/10/10 finished</br>
/// </summary>
/// <remarks>
/// 继承System.Web.UI.WebControls.TableRow , 作为自定义控件CheckTable的TableRow，
/// 与TableRow相比，增加一个值属性和一个CheckBox
/// </remarks>
public class CheckTableRow : System.Web.UI.WebControls.TableRow
{
/// <summary>
/// 值
/// </summary>
private string m_strValue ;
/// <summary>
/// 是否使用checkbox
/// </summary>
/// <remarks>如果为false则不显示checkbox</remarks>
private bool m_bUseCheck ;
/// <summary>
/// 存取value的属性
/// </summary>
public string Value
{
get
{
return this.m_strValue ;
}
set
{
this.m_strValue = value ;
}
}
/// <summary>
/// 存取是否使用checkbox的属性
/// </summary>
public bool UseCheck
{
get
{
return this.m_bUseCheck ;
}
set
{
this.m_bUseCheck = value ;
}
}
/// <summary>
/// 构造函数
/// </summary>
public CheckTableRow()
{
this.m_strValue = "" ;
this.m_bUseCheck = true ;
}
/// <summary>
/// 重载父类方法
/// </summary>
/// <returns>控件结合</returns>
/// <remarks>增加一个带有CheckBox的td</remarks>
protected override System.Web.UI.ControlCollection CreateControlCollection()
{
ControlCollection cc = base.CreateControlCollection() ;
if(this.m_bUseCheck)
{
TableCell td = new TableCell() ;
td.BackColor = this.BackColor ;
td.VerticalAlign = VerticalAlign.Top ;
CheckBox cb = new CheckBox() ;
cb.ID = this.m_strValue ;
td.Controls.Add(cb) ;
cc.Add(td) ;
}
return cc ;
}//end method
}//end class
}//end namespace