ASP.NET中Button控件的CommandName和CommandArgument属性用法

在Repeater中的使用：

            <asp:Repeater ID="rptActionList" runat="server" OnItemCommand="rptActionList_ItemCommand" OnItemDataBound="rptActionList_DataBinding">
                <ItemTemplate>
                    <tr class="info">
                        <td>
                            <%#Eval("ActionName") %>
                        </td>
                        <td>
                             <asp:LinkButton ID="btn_Down_Exchanged" runat="server" Text="下载" CommandName="downloadExchanged"
                                CommandArgument='<%#Eval("ActionId")+"$"+Eval("ActionName")%>' />
                        </td>
                        <td>
                            <asp:LinkButton ID="btn_Del" runat="server" Text="删除" OnClientClick="return confirm('确认删除活动吗?')"
                                CommandName="del" CommandArgument='<%#Eval("ActionId")%>' />&nbsp;&nbsp;
                            <a href="/Actives/ActiveCodeMgr.aspx?ActionId=<%#Eval("ActionId")%>&isedit=1">修改</a> &nbsp;&nbsp;
                            <a href="/Actives/ActiveCodeMgr.aspx?ActionId=<%#Eval("ActionId")%>&isshowprize=1">查看</a>&nbsp;&nbsp;
                            <asp:LinkButton runat="server" ID="lbAddRecycled" CommandName="add" CommandArgument='<%#Eval("ActionId") %>'>放进回收站</asp:LinkButton>
                            <asp:LinkButton runat="server" ID="lbRemoveRecycled" CommandName="remove" CommandArgument='<%#Eval("ActionId") %>'>移出回收站</asp:LinkButton>
                        </td>
                        <td>
                            <asp:LinkButton ID="btn_Down" runat="server" Text="导出激活码" CommandName="download" CommandArgument='<%#Eval("ActionId")+"$"+Eval("ActionName")%>' />
                        </td>
                    </tr>
                </ItemTemplate>
            </asp:Repeater>

        protected void rptActionList_ItemCommand(object source, RepeaterCommandEventArgs e)
        {
            if (e.CommandName.ToString() == "del") //通过判断CommandName来区分执行什么操作
            {
                int ActionId = int.Parse(e.CommandArgument.ToString());
                if (ActionId > 0)
                {
                    int ret = activeCodeNewMgr.DelAction(ActionId);
                    if (ret != Const.SUCCESS)
                    {
                        LogHelper.Error("活动删除失败:ActionId:" + ActionId);
                    }
                    else
                    {
                        BindData();
                    }
                }
            }
            else if (e.CommandName.ToString() == "download")
            {
                string[] args = e.CommandArgument.ToString().Split('$');
                int _ActionId = int.Parse(args[0]);
                if (_ActionId > 0)
                {
                    List<ActivationInfo> list = activeCodeNewMgr.GetActivationByActionId(_ActionId, 0, 1, 500000);
                    string _actionName = string.Empty;
                    if (args.Length > 1) _actionName = args[1];
                    this.DownLoadActvation(list, _actionName);
                }
                else
                {
                    JSAlert("活动不存在!!");
                }
            }
            else if (e.CommandName == "add")
            {
                int actionId = Convert.ToInt32(e.CommandArgument);
                activeCodeNewMgr.ChangedActivety(1, actionId);
                this.BindData();
            }
            else if (e.CommandName == "remove")
            {
                int actionId = Convert.ToInt32(e.CommandArgument);
                activeCodeNewMgr.ChangedActivety(0, actionId);
                this.BindData();
            }
            else if (e.CommandName == "downloadExchanged")
            {
                string[] args = e.CommandArgument.ToString().Split('$');
                int _ActionId = int.Parse(args[0]);
                int count = 0;
                if (_ActionId > 0)
                {
                    List<ActivationInfo> list = activeCodeNewMgr.GetActioncodeExchanged(_ActionId, out count);
                    if (list != null && list.Count > 0)
                    {
                        foreach (ActivationInfo ai in list)
                        {
                            UserProfile userInfo = new UserProfile();
                            userInfo.getUserInfo(ai.UserId);
                            ai.NickName = userInfo.UserNickName;
                        }
                    }

                    string _actionName = string.Empty;
                    if (args.Length > 1) _actionName = args[1];
                    this.DownLoadActionCodeExchanged(list, _actionName);
                }
                else
                {
                    JSAlert("活动不存在!!");
                }
            }
        }

另外的用法：让点击不同按钮的事件共用一个，通过判断CommandName和CommandArgument来区分

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ButtonTest.aspx.cs" Inherits="WebFormTest.TestCollect.ButtonTest" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>无标题页</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Button ID="btn1" runat="server" Text="按钮1" CommandName="1" 
            onclick="btn1_Click" CommandArgument="11" oncommand="btn1_Command" />
        <br />
        <asp:Button ID="btn2" runat="server" Text="按钮2" CommandName="2" 
            onclick="btn1_Click" CommandArgument="22" />
        <br />
        <asp:Button ID="Button3" runat="server" Text="按钮3" oncommand="btn1_Command" />
    </div>
    </form>
</body>
</html>

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

namespace WebFormTest.TestCollect
{
    public partial class ButtonTest : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
        }

        protected void btn1_Click(object sender, EventArgs e)
        {
            
            string commandName = ((Button)sender).CommandName;

            if (commandName == "1")
            {
                Response.Write("1");
            }
            else if (commandName == "2")
            {
                Response.Write("2");
            }

            string commandArgument = ((Button)sender).CommandArgument;
            if (commandArgument == "11")
            {
                Response.Write("11");
            }
            else if (commandArgument == "22")
            {
                Response.Write("22");
            }

        }

        //OnClick与OnCommand都是点击执行某事件，OnCommand中的CommandEventArgs e，参数e，附带属性CommandName和CommandArgument
        protected void btn1_Command(object sender, CommandEventArgs e) 
        {
            e.CommandArgument.ToString();
        }

    }
}