Asp.net2.0 下写的MsgBox函数

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Text;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

/**//// <summary>
/// Class1 的摘要说明
/// </summary>
public class Common
{
    public Common()
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //
    }
    /**//// <summary>
    /// 提示窗口
    /// </summary>
    /// <param name="msg">提示信息</param>
    public static void MsgBox(string msg) 
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("<script>");
        sb.Append("alert('"+msg+"');");
        sb.Append("</script>");
        ((Page)HttpContext.Current.Handler).ClientScript.RegisterStartupScript(typeof(string), "Error", sb.ToString());
    }
}