本文實例講述了ASP.NET中常用輸出JS腳本的類，針對過去輸出js腳本的類進行了一定的改進。在項目開發中非常具有實用價值。分享給大家供大家參考。具體如下：
很多時候在ASP.NET中我們經常需要輸出一些JS腳本，比如彈出一個警告窗口，返回到歷史頁面等JS功能，我看到網上流傳得比較廣的是馬先光寫的一個JScript類，這個類基本將經常用到的JS腳本包含了，非常方便，唯一的不足是作者采用的Response.Write(string msg)的辦法，這樣造成輸出的js腳本在<html></html>標簽之外，破壞了原有XHTML的結構，所以本人在滿足原功能的情況下，對JScript類做了進一步的改善，這個改善采用了重載的辦法，增加了一個System.Web.UI.Page類的實例作為參數，不會影響原來的程序代碼。
整個程序的代碼如下：
代碼如下:using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Web.UI;
/// <summary>
/// 一些常用的Js調用
/// 添加新版說明：由于舊版普遍采用Response.Write(string msg)的方式輸出js腳本，這種
/// 方式輸出的js腳本會在html元素的<html></html>標簽之外，破壞了整個xhtml的結構,
/// 而新版本則采用ClientScript.RegisterStartupScript(string msg)的方式輸出，不會改變xhtml的結構,
/// 不會影響執行效果。
/// 為了向下兼容，所以新版本采用了重載的方式，新版本中要求一個System.Web.UI.Page類的實例。
/// 創建者：馬先光
/// 新版作者：周公
/// 修改版發布網址：http://blog.csdn.net/zhoufoxcn
/// </summary>
public class JScript
{
#region 舊版本
/// <summary>
/// 彈出JavaScript小窗口
/// </summary>
/// <param name="js">窗口信息</param>
public static void Alert(string message)
{
#region
string js = @"<Script language='JavaScript'>
alert('" + message + "');</Script>";
HttpContext.Current.Response.Write(js);
#endregion
}
/// <summary>
/// 彈出消息框并且轉向到新的URL
/// </summary>
/// <param name="message">消息內容</param>
/// <param name="toURL">連接地址</param>
public static void AlertAndRedirect(string message, string toURL)
{
#region
string js = "<script language=javascript>alert('{0}');window.location.replace('{1}')</script>";
HttpContext.Current.Response.Write(string.Format(js, message, toURL));
#endregion
}
/// <summary>
/// 回到歷史頁面
/// </summary>
/// <param name="value">-1/1</param>
public static void GoHistory(int value)
{
#region
string js = @"<Script language='JavaScript'>
history.go({0});
</Script>";
HttpContext.Current.Response.Write(string.Format(js, value));
#endregion
}
/// <summary>
/// 關閉當前窗口
/// </summary>
public static void CloseWindow()
{
#region
string js = @"<Script language='JavaScript'>
parent.opener=null;window.close();
</Script>";
HttpContext.Current.Response.Write(js);
HttpContext.Current.Response.End();
#endregion
}
/// <summary>
/// 刷新父窗口
/// </summary>
public static void RefreshParent(string url)
{
#region
string js = @"<Script language='JavaScript'>
window.opener.location.href='" + url + "';window.close();</Script>";
HttpContext.Current.Response.Write(js);
#endregion
}
/// <summary>
/// 刷新打開窗口
/// </summary>
public static void RefreshOpener()
{
#region
string js = @"<Script language='JavaScript'>
opener.location.reload();
</Script>";
HttpContext.Current.Response.Write(js);
#endregion
}
/// <summary>
/// 打開指定大小的新窗體
/// </summary>
/// <param name="url">地址</param>
/// <param name="width">寬</param>
/// <param name="heigth">高</param>
/// <param name="top">頭位置</param>
/// <param name="left">左位置</param>
public static void OpenWebFormSize(string url, int width, int heigth, int top, int left)
{
#region
string js = @"<Script language='JavaScript'>window.open('" + url + @"','','height=" + heigth + ",width=" + width + ",top=" + top + ",left=" + left + ",location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');</Script>";
HttpContext.Current.Response.Write(js);
#endregion
}
/// <summary>
/// 轉向Url制定的頁面
/// </summary>
/// <param name="url">連接地址</param>
public static void JavaScriptLocationHref(string url)
{
#region
string js = @"<Script language='JavaScript'>
window.location.replace('{0}');
</Script>";
js = string.Format(js, url);
HttpContext.Current.Response.Write(js);
#endregion
}
/// <summary>
/// 打開指定大小位置的模式對話框
/// </summary>
/// <param name="webFormUrl">連接地址</param>
/// <param name="width">寬</param>
/// <param name="height">高</param>
/// <param name="top">距離上位置</param>
/// <param name="left">距離左位置</param>
public static void ShowModalDialogWindow(string webFormUrl, int width, int height, int top, int left)
{
#region
string features = "dialogWidth:" + width.ToString() + "px"
+ ";dialogHeight:" + height.ToString() + "px"
+ ";dialogLeft:" + left.ToString() + "px"
+ ";dialogTop:" + top.ToString() + "px"
+ ";center:yes;help=no;resizable:no;status:no;scroll=yes";
ShowModalDialogWindow(webFormUrl, features);
#endregion
}
/// <summary>
/// 彈出模態窗口
/// </summary>
/// <param name="webFormUrl"></param>
/// <param name="features"></param>
public static void ShowModalDialogWindow(string webFormUrl, string features)
{
string js = ShowModalDialogJavascript(webFormUrl, features);
HttpContext.Current.Response.Write(js);
}
/// <summary>
/// 彈出模態窗口
/// </summary>
/// <param name="webFormUrl"></param>
/// <param name="features"></param>
/// <returns></returns>
public static string ShowModalDialogJavascript(string webFormUrl, string features)
{
#region
string js = @"<script language=javascript>
showModalDialog('" + webFormUrl + "','','" + features + "');</script>";
return js;
#endregion
}
#endregion
#region 新版本
/// <summary>
/// 彈出JavaScript小窗口
/// </summary>
/// <param name="js">窗口信息</param>
public static void Alert(string message, Page page)
{
#region
string js = @"<Script language='JavaScript'>
alert('" + message + "');</Script>";
//HttpContext.Current.Response.Write(js);
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "alert"))
{
page.ClientScript.RegisterStartupScript(page.GetType(), "alert", js);
}
#endregion
}
/// <summary>
/// 彈出消息框并且轉向到新的URL
/// </summary>
/// <param name="message">消息內容</param>
/// <param name="toURL">連接地址</param>
public static void AlertAndRedirect(string message, string toURL, Page page)
{
#region
string js = "<script language=javascript>alert('{0}');window.location.replace('{1}')</script>";
//HttpContext.Current.Response.Write(string.Format(js, message, toURL));
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "AlertAndRedirect"))
{
page.ClientScript.RegisterStartupScript(page.GetType(), "AlertAndRedirect", string.Format(js, message, toURL));
}
#endregion
}
/// <summary>
/// 回到歷史頁面
/// </summary>
/// <param name="value">-1/1</param>
public static void GoHistory(int value, Page page)
{
#region
string js = @"<Script language='JavaScript'>
history.go({0});
</Script>";
//HttpContext.Current.Response.Write(string.Format(js, value));
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "GoHistory"))
{
page.ClientScript.RegisterStartupScript(page.GetType(), "GoHistory", string.Format(js, value));
}
#endregion
}
// /// <summary>
// /// 關閉當前窗口
// /// </summary>
// public static void CloseWindow()
// {
// #region
// string js = @"<Script language='JavaScript'>
// parent.opener=null;window.close();
// </Script>";
// HttpContext.Current.Response.Write(js);
// HttpContext.Current.Response.End();
// #endregion
// }
/// <summary>
/// 刷新父窗口
/// </summary>
public static void RefreshParent(string url, Page page)
{
#region
string js = @"<Script language='JavaScript'>
window.opener.location.href='" + url + "';window.close();</Script>";
//HttpContext.Current.Response.Write(js);
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "RefreshParent"))
{
page.ClientScript.RegisterStartupScript(page.GetType(), "RefreshParent", js);
}
#endregion
}
/// <summary>
/// 刷新打開窗口
/// </summary>
public static void RefreshOpener(Page page)
{
#region
string js = @"<Script language='JavaScript'>
opener.location.reload();
</Script>";
//HttpContext.Current.Response.Write(js);
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "RefreshOpener"))
{
page.ClientScript.RegisterStartupScript(page.GetType(), "RefreshOpener", js);
}
#endregion
}
/// <summary>
/// 打開指定大小的新窗體
/// </summary>
/// <param name="url">地址</param>
/// <param name="width">寬</param>
/// <param name="heigth">高</param>
/// <param name="top">頭位置</param>
/// <param name="left">左位置</param>
public static void OpenWebFormSize(string url, int width, int heigth, int top, int left, Page page)
{
#region
string js = @"<Script language='JavaScript'>window.open('" + url + @"','','height=" + heigth + ",width=" + width + ",top=" + top + ",left=" + left + ",location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');</Script>";
//HttpContext.Current.Response.Write(js);
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "OpenWebFormSize"))
{
page.ClientScript.RegisterStartupScript(page.GetType(), "OpenWebFormSize", js);
}
#endregion
}
/// <summary>
/// 轉向Url制定的頁面
/// </summary>
/// <param name="url">連接地址</param>
public static void JavaScriptLocationHref(string url, Page page)
{
#region
string js = @"<Script language='JavaScript'>
window.location.replace('{0}');
</Script>";
js = string.Format(js, url);
//HttpContext.Current.Response.Write(js);
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "JavaScriptLocationHref"))
{
page.ClientScript.RegisterStartupScript(page.GetType(), "JavaScriptLocationHref", js);
}
#endregion
}
/// <summary>
/// 打開指定大小位置的模式對話框
/// </summary>
/// <param name="webFormUrl">連接地址</param>
/// <param name="width">寬</param>
/// <param name="height">高</param>
/// <param name="top">距離上位置</param>
/// <param name="left">距離左位置</param>
public static void ShowModalDialogWindow(string webFormUrl, int width, int height, int top, int left, Page page)
{
#region
string features = "dialogWidth:" + width.ToString() + "px"
+ ";dialogHeight:" + height.ToString() + "px"
+ ";dialogLeft:" + left.ToString() + "px"
+ ";dialogTop:" + top.ToString() + "px"
+ ";center:yes;help=no;resizable:no;status:no;scroll=yes";
ShowModalDialogWindow(webFormUrl, features, page);
#endregion
}
/// <summary>
/// 彈出模態窗口
/// </summary>
/// <param name="webFormUrl"></param>
/// <param name="features"></param>
public static void ShowModalDialogWindow(string webFormUrl, string features, Page page)
{
string js = ShowModalDialogJavascript(webFormUrl, features);
//HttpContext.Current.Response.Write(js);
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "ShowModalDialogWindow"))
{
page.ClientScript.RegisterStartupScript(page.GetType(), "ShowModalDialogWindow", js);
}
}
// /// <summary>
// /// 彈出模態窗口
// /// </summary>
// /// <param name="webFormUrl"></param>
// /// <param name="features"></param>
// /// <returns></returns>
// public static string ShowModalDialogJavascript(string webFormUrl, string features)
// {
// #region
// string js = @"<script language=javascript>
// showModalDialog('" + webFormUrl + "','','" + features + "');</script>";
// return js;
// #endregion
// }
#endregion
}
希望本文所述對大家的C#程序設計有所幫助。
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