本文实例讲述了C#实现客户端弹出消息框封装类。分享给大家供大家参考。具体如下：

asp.net在服务器端运行，是不能在服务器端弹出对话框的，但是C#可以通过在页面输出JS代码实现弹出消息框的效果，这个C#类封装了常用的消息框弹出JS代码，可以在服务器端调用，在客户端显示对话框。不但可以显示JS的警告框，还可以显示模式窗口，非常方便。

using System;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;namespace DotNet.Utilities{ /// <summary> /// 页面常用方法包装 /// </summary> public class ShowMessageBox { #region 信息显示 /// <summary> /// 显示提示信息 /// </summary> /// <param name="message"></param> public static void ShowMG(string message) { WriteScript("alert('" + message + "');"); } /// <summary> /// 显示提示信息 /// </summary> /// <param name="message">提示信息</param> public static void ShowMessage(string message) { ShowMessage("系统提示", 180, 120, message); } /// <summary> /// 显示提示信息 /// </summary> /// <param name="message">提示信息</param> public static void ShowMessage_link(string message, string linkurl) { ShowMessage_link("系统提示", 180, 120, message, linkurl, 8000, -1); } /// <summary> /// 显示提示信息 /// </summary> /// <param name="title"></param> /// <param name="width"></param> /// <param name="height"></param> /// <param name="message">提示信息</param> private static void ShowMessage(string title, int width, int height, string message) { ShowMessage(title, width, height, message, 3000, -1); } /// <summary> /// 显示提示信息 /// </summary> /// <param name="title"></param> /// <param name="width"></param> /// <param name="height"></param> /// <param name="message"></param> /// <param name="delayms"></param> /// <param name="leftSpace"></param> private static void ShowMessage(string title, int width, int height, string message, int delayms, int leftSpace) { WriteScript(string.Format("popMessage({0},{1},'{2}','{3}',{4},{5});", width, height, title, message, delayms, leftSpace == -1 ? "null" : leftSpace.ToString())); } /// <summary> /// 显示提示信息 /// </summary> /// <param name="title"></param> /// <param name="width"></param> /// <param name="height"></param> /// <param name="message"></param> /// <param name="delayms"></param> /// <param name="leftSpace"></param> private static void ShowMessage_link(string title, int width, int height, string message, string linkurl, int delayms, int leftSpace) { WriteScript(string.Format("popMessage2({0},{1},'{2}','{3}','{4}',{5},{6});", width, height, title, message, linkurl, delayms, leftSpace == -1 ? "null" : leftSpace.ToString())); } #endregion #region 显示异常信息 /// <summary> /// 显示异常信息 /// </summary> /// <param name="ex"></param> public static void ShowExceptionMessage(Exception ex) { ShowExceptionMessage(ex.Message); } /// <summary> /// 显示异常信息 /// </summary> /// <param name="message"></param> public static void ShowExceptionMessage(string message) { WriteScript("alert('" + message + "');"); //PageHelper.ShowExceptionMessage("错误提示", 210, 125, message); } /// <summary> /// 显示异常信息 /// </summary> /// <param name="title"></param> /// <param name="width"></param> /// <param name="height"></param> /// <param name="message"></param> private static void ShowExceptionMessage(string title, int width, int height, string message) { WriteScript(string.Format("setTimeout(\"showAlert('{0}',{1},{2},'{3}')\",100);", title, width, height, message)); } #endregion #region 显示模态窗口 /// <summary> /// 返回把指定链接地址显示模态窗口的脚本 /// </summary> /// <param name="wid"></param> /// <param name="title"></param> /// <param name="width"></param> /// <param name="height"></param> /// <param name="url"></param> public static string GetShowModalWindowScript(string wid, string title, int width, int height, string url) { return string.Format("setTimeout(\"showModalWindow('{0}','{1}',{2},{3},'{4}')\",100);", wid, title, width, height, url); } /// <summary> /// 把指定链接地址显示模态窗口 /// </summary> /// <param name="wid">窗口ID</param> /// <param name="title">标题</param> /// <param name="width">宽度</param> /// <param name="height">高度</param> /// <param name="url">链接地址</param> public static void ShowModalWindow(string wid, string title, int width, int height, string url) { WriteScript(GetShowModalWindowScript(wid, title, width, height, url)); } /// <summary> /// 为指定控件绑定前台脚本：显示模态窗口 /// </summary> /// <param name="control"></param> /// <param name="eventName"></param> /// <param name="wid"></param> /// <param name="title"></param> /// <param name="width"></param> /// <param name="height"></param> /// <param name="url"></param> /// <param name="isScriptEnd"></param> public static void ShowCilentModalWindow(string wid, WebControl control, string eventName, string title, int width, int height, string url, bool isScriptEnd) { string script = isScriptEnd ? "return false;" : ""; control.Attributes[eventName] = string.Format("showModalWindow('{0}','{1}',{2},{3},'{4}');" + script, wid, title, width, height, url); } /// <summary> /// 为指定控件绑定前台脚本：显示模态窗口 /// </summary> /// <param name="cell"></param> /// <param name="eventName"></param> /// <param name="wid"></param> /// <param name="title"></param> /// <param name="width"></param> /// <param name="height"></param> /// <param name="url"></param> /// <param name="isScriptEnd"></param> public static void ShowCilentModalWindow(string wid, TableCell cell, string eventName, string title, int width, int height, string url, bool isScriptEnd) { string script = isScriptEnd ? "return false;" : ""; cell.Attributes[eventName] = string.Format("showModalWindow('{0}','{1}',{2},{3},'{4}');" + script, wid, title, width, height, url); } #endregion #region 显示客户端确认窗口 /// <summary> /// 显示客户端确认窗口 /// </summary> /// <param name="control"></param> /// <param name="eventName"></param> /// <param name="message"></param> public static void ShowCilentConfirm(WebControl control, string eventName, string message) { ShowCilentConfirm(control, eventName, "系统提示", 210, 125, message); } /// <summary> /// 显示客户端确认窗口 /// </summary> /// <param name="control"></param> /// <param name="eventName"></param> /// <param name="title"></param> /// <param name="width"></param> /// <param name="height"></param> /// <param name="message"></param> public static void ShowCilentConfirm(WebControl control, string eventName, string title, int width, int height, string message) { control.Attributes[eventName] = string.Format("return showConfirm('{0}',{1},{2},'{3}','{4}');", title, width, height, message, control.ClientID); } #endregion /// <summary> /// 写javascript脚本 /// </summary> /// <param name="script">脚本内容</param> public static void WriteScript(string script) { Page page = GetCurrentPage(); // NDGridViewScriptFirst(page.Form.Controls, page); page.ClientScript.RegisterStartupScript(page.GetType(), System.Guid.NewGuid().ToString(), script, true); } /// <summary> /// 得到当前页对象实例 /// </summary> /// <returns></returns> public static Page GetCurrentPage() { return (Page)HttpContext.Current.Handler; } }}

希望本文所述对大家的C#程序设计有所帮助。