从代码后面添加JavaScript引用(c#)

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:

是这样的:

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:

应该将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?

这是可能的吗?

3 个解决方案

#1

You can use the ASP.NET Ajax ScriptManager to do so.

您可以使用ASP。NET Ajax ScriptManager这样做。

Add it to your masterpage, and use ScriptManager.RegisterClientScriptInclude from your codebehind.

将它添加到主页，并使用ScriptManager。RegisterClientScriptInclude后台代码。

#2

Bit late but thought I'd post an answer to this in case anybody else needs it. This solution negates the need for a ScriptManager.

有点晚了，但我想我应该发布一个答案，以防有人需要它。这个解决方案否定了使用ScriptManager的需要。

Basically, it's just a case of creating a control and then adding to the head. Here's the code.

基本上，这只是一个创建控件然后添加到头部的例子。这里的代码。

LiteralControl javascriptRef = new LiteralControl("<script type='text/javascript' src='path_to_script.js'></script>");

Page.Header.Controls.Add(javascriptRef);

#3

For those who want to know the syntax, here it is:

对于那些想了解语法的人，以下是:

Master Page:

主页:

<asp:ScriptManager ID="ScriptManager" EnablePageMethods="true" runat="server"></asp:ScriptManager>

Code behind:

背后的代码:

ScriptReference sr = new ScriptReference("path-to-js.js");
ScriptManager sm = (ScriptManager)this.Master.FindControl("ScriptManager");
sm.Scripts.Add(sr);

Or:

或者:

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。

#1