ASP.NET弹出一个对话框

我们[/b]在ASP.NET程序的开发过程中，常常需要向用户给出提示信息[/b]，比如是否“操作成功[/b]”，“确定”还是“取消”操作。

(1) 点击页面上的按钮[/b]，弹出一个对话框提示是“确定”还是“取消”操作，我们采用在按钮中添加属性来完成：
举例如下：
public System.Web.UI.WebControls.Button btnDelRow;
btnDelRow.Attributes.Add("onclick", "return confirm('确定要删吗?');");

(2) 对于页面完成一个操作后，弹出一个对话框提示是否“操作成功”。
举例如下：
Response.Write("<script[/b]>alert('删除成功!')</script>");

(3)允许 ASP.NET 服务器[/b]控件在 Page 中发出客户端脚本[/b]块：
public virtual void RegisterStartupScript(string key,string script);

举例如下：
if(!this.IsStartupScriptRegistered("hello"))
this.RegisterStartupScript("hello","<script>alert('你好!')</script>");

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http://www.opent.cn 作者:浪淘沙
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using System;
using System.Data;
using System.Configuration;
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;

namespace EC
{
/// <summary>
/// 信息输出通用方法
/// </summary>
public class MessageObject
{

/// <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());
}

}
}