Asp.net”頁面載入中”效果實現

最後更新：2018-12-04 來源：互聯網

上載者：User

創建阿里雲帳戶，並獲得超過 40 款產品的免費試用版；而企業帳戶則可以享有總值 $1200 的免費試用版。立即註冊！

在網上找了好多，實現方式大多是使用定時器

個人覺得定時器會造成一定程度上的假象

（如：定時器還沒結束頁面已經載入完畢，或定時器結束後頁面還沒載入完成）

本方法利用的是javascript，先網頁面裡面寫入一個層，顯示載入框，然後等頁面結束後

在body的onload中寫入事件，隱藏該對話方塊

方法（我的系統是多個頁面，所以寫了一個公用的類common.cs）：

在類裡面加入如下函數（也可在每個代碼後檔案中寫入）：

#region "頁面載入中效果"
/// <summary>
/// 頁面載入中效果
/// </summary>
public static void initJavascript()
{
HttpContext.Current.Response.Write(" <script language=JavaScript type=text/javascript>");
HttpContext.Current.Response.Write("var t_id = setInterval(animate,20);");
HttpContext.Current.Response.Write("var pos=0;var dir=2;var len=0;");
HttpContext.Current.Response.Write("function animate(){");
HttpContext.Current.Response.Write("var elem = document.getElementById('progress');");
HttpContext.Current.Response.Write("if(elem != null) {");
HttpContext.Current.Response.Write("if (pos==0) len += dir;");
HttpContext.Current.Response.Write("if (len>32 || pos>79) pos += dir;");
HttpContext.Current.Response.Write("if (pos>79) len -= dir;");
HttpContext.Current.Response.Write(" if (pos>79 && len==0) pos=0;");
HttpContext.Current.Response.Write("elem.style.left = pos;");
HttpContext.Current.Response.Write("elem.style.width = len;");
HttpContext.Current.Response.Write("}}");
HttpContext.Current.Response.Write("function remove_loading() {");
HttpContext.Current.Response.Write(" this.clearInterval(t_id);");
HttpContext.Current.Response.Write("var targelem = document.getElementById('loader_container');");
HttpContext.Current.Response.Write("targelem.style.display='none';");
HttpContext.Current.Response.Write("targelem.style.visibility='hidden';");
HttpContext.Current.Response.Write("}");
HttpContext.Current.Response.Write("</script>");
HttpContext.Current.Response.Write("<style>");
HttpContext.Current.Response.Write("#loader_container {text-align:center; position:absolute; top:40%; width:100%; left: 0;}");
HttpContext.Current.Response.Write("#loader {font-family:Tahoma,
Helvetica, sans; font-size:11.5px; color:#000000;
background-color:#FFFFFF; padding:10px 0 16px 0; margin:0 auto;
display:block; width:130px; border:1px solid #5a667b; text-align:left;
z-index:2;}");
HttpContext.Current.Response.Write("#progress {height:5px;
font-size:1px; width:1px; position:relative; top:1px; left:0px;
background-color:#8894a8;}");
HttpContext.Current.Response.Write("#loader_bg
{background-color:#e4e7eb; position:relative; top:8px; left:8px;
height:7px; width:113px; font-size:1px;}");
HttpContext.Current.Response.Write("</style>");
HttpContext.Current.Response.Write("<div id=loader_container>");
HttpContext.Current.Response.Write("<div id=loader>");
HttpContext.Current.Response.Write("<div align=center>頁面正在載入中 ...</div>");
HttpContext.Current.Response.Write("<div id=loader_bg><div id=progress> </div></div>");
HttpContext.Current.Response.Write("</div></div>");
HttpContext.Current.Response.Flush();
}
#endregion
}

之後在需要調用的頁面中在Page_Load()時間調用該方法：

Common.initJavascript();

並在每個頁面body載入完畢後調用隱藏該div的事件

完畢！

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

Sales Support

1 on 1 presale consultation

Chat Contact Sales
After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

Open a Ticket
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

Learn More

Asp.net”頁面載入中”效果實現

聯繫我們

A Free Trial That Lets You Build Big!

Sales Support

After-Sales Support