ASP.NET 弹出对话框基类

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

public partial class MyTest : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    /**//// <summary>
    /// 一般输出
    /// </summary>
    /// <param name="str"></param>
    public static void Write(string str)
    {
        System.Web.HttpContext.Current.Response.Write(str);
    }
    /**//// <summary>
    /// 显示一段自定义的输出代码
    /// </summary>
    /// <param name="MyPage"></param>
    /// <param name="strCode"></param>
    public static void ShowJS(System.Web.UI.Page MyPage, string strCode)
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("<script language=\"javascript\"> \n");
        sb.Append(strCode.Trim());
        sb.Append("</script>");
        MyPage.Response.Write(sb.ToString());
    }
    /**//// <summary>
    /// 页面重载
    /// </summary>
    public static void Location()
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("<script language=\"javascript\"> \n");
        sb.Append("window.location.href=window.location.href;");
        sb.Append("</script>");
        System.Web.HttpContext.Current.Response.Write(sb.ToString());

    }
    /**//// <summary>
    /// 显示一个弹出窗口
    /// </summary>
    /// <param name="str"></param>
    public static void Show(string str)
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("<script language=\"javascript\"> \n");
        sb.Append("alert(\"" + str.Trim() + "\"); \n");
        sb.Append("</script>");

        System.Web.HttpContext.Current.Response.Write(sb.ToString());
    }
    /**//// <summary>
    /// 显示一个弹出窗口，并关闭当前页
    /// </summary>
    /// <param name="str"></param>
    public static void ShowClose(string str)
    {
        System.Text.StringBuilder sb = new System.Text.StringBuilder();
        sb.Append("<script language=\"javascript\">\n");
        sb.Append("alert(\"" + str.Trim() + "\"); \n");
        sb.Append("window.close();\n");
        sb.Append("</script>\n");
        System.Web.HttpContext.Current.Response.Write(sb.ToString());
    }
    /**//// <summary>
    /// 显示一个弹出窗口，并转向当前页(刷新)
    /// </summary>
    /// <param name="str"></param>
    public static void ShowLocation(string str)
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("<script language=\"javascript\"> \n");
        sb.Append("alert(\"" + str.Trim() + "\"); \n");
        sb.Append("window.location.href=window.location.href;\n");
        sb.Append("</script>");

        System.Web.HttpContext.Current.Response.Write(sb.ToString());
    }
    /**//// <summary>
    /// 显示一个弹出窗口，并转向目标页(导航)
    /// </summary>
    /// <param name="str"></param>
    /// <param name="url"></param>
    public static void ShowRedirect(string str, string url)
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("<script language=\"javascript\"> \n");
        sb.Append("alert(\"" + str.Trim() + "\"); \n");
        sb.Append("window.location.href=\"" + url.Trim() + "\";\n");
        sb.Append("</script>");

        System.Web.HttpContext.Current.Response.Write(sb.ToString());
    }
    /**//// <summary>
    /// 显示一个弹出窗口，并转向上一页
    /// </summary>
    /// <param name="str"></param>
    public static void ShowPre(string str)
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("<script language=\"javascript\"> \n");
        sb.Append("alert(\"" + str.Trim() + "\"); \n");
        sb.Append("var p=document.referrer; \n");
        sb.Append("window.location.href=p;\n");
        sb.Append("</script>");

        System.Web.HttpContext.Current.Response.Write(sb.ToString());
    }
    /**//// <summary>
    /// 重定向
    /// </summary>
    /// <param name="url"></param>
    public static void RedirectPage(string url)
    {
        string path = "http://" + System.Web.HttpContext.Current.Request.Url.Host + url;
        StringBuilder sb = new StringBuilder();
        sb.Append("<script language=\"javascript\"> \n");
        sb.Append(string.Format("window.location.href='{0}';", @path));
        sb.Append("</script>");

        System.Web.HttpContext.Current.Response.Write(sb.ToString());
    }
    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        string teststring = txtTest.Text;
        if (teststring == "hello")
        {
            Show(teststring);
            //Response.Redirect("MyTest.aspx");
        }
        else
            Response.Redirect("MyTest.aspx");
    }
}