从代码后面添加JavaScript引用（C＃）
[英]Add JavaScript reference from code behind (C#)
问题描述
Is it possible to add javascript reference dynamically from code behind aspx.cs? 
是否可以从aspx.cs后面的代码动态添加javascript引用？
Like this: 像这样：
private void AddScriptReference(string path)
{
//Add reference to <head></head>
}
Should result in a script reference being added to the head of the page, like this: 应该导致脚本引用添加到页面的头部，如下所示：
<html>
<head>
<script type="text/javascript" src="path-to-script.js"></script>
</head>
</html>
Is this possible? 这可能吗？
3 个解决方案
解决方案1
26 2011-05-11 18:14:31
Bit late but thought I'd post an answer to this in case anybody else needs it. 有点迟，但我想在没有其他人需要的情况下给我发一个答案。 This solution negates the need for a ScriptManager. 此解决方案无需使用ScriptManager。
Basically, it's just a case of creating a control and then adding to the head. 基本上，它只是创建一个控件然后添加到头部的情况。 Here's the code. 这是代码。
LiteralControl javascriptRef = new LiteralControl("<script type='text/javascript' src='path_to_script.js'></script>");
Page.Header.Controls.Add(javascriptRef);
解决方案2
8 2010-09-13 15:06:03
For those who want to know the syntax, here it is: 对于那些想要了解语法的人来说，这里是：
Master Page: 母版页：
<asp:ScriptManager ID="ScriptManager" EnablePageMethods="true" runat="server"></asp:ScriptManager>
Code behind: 代码背后：
ScriptReference sr = new ScriptReference("path-to-js.js");
ScriptManager sm = (ScriptManager)this.Master.FindControl("ScriptManager");
sm.Scripts.Add(sr);
Or: 要么：
ScriptManager.RegisterClientScriptInclude(this.Page, GetType(), "UniqueID", "path-to-js.js");
But none of these solutions actually add the script to the head of the page.. 但是这些解决方案都没有将脚本添加到页面的头部。
解决方案3
6 已采纳 2010-09-13 14:53:26
You can use the ASP.NET Ajax ScriptManager to do so. 您可以使用ASP.NET Ajax ScriptManager来执行此操作。
Add it to your masterpage, and use ScriptManager.RegisterClientScriptInclude from your codebehind. 将其添加到您的母版页，并使用您的代码隐藏中的ScriptManager.RegisterClientScriptInclude 。
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