Is there a System.Web.UI.ClientScriptManager method that registers scripts inside the <head> tag?
I know it's strictly OK to put <script> tags in the body, but in the interest of neatness I'd like to use System.Web.UI.ClientScriptManager to register a script in the <head> of my page. Is there a m开发者_如何转开发ethod to accomplish this?
Thanks in advance.
In these cases I usually add a ContentPlaceHolder in the tag of my Master Page.
Alternately I've used a method (usually in a utility class or PageBase class) that puts the script string in a List and stores it in the ASP.Net Context like so:
List<string> javaScriptUrls = new List<string>();
url = url.ToLower();
javaScriptUrls = Context.Items[JS_KEY] as List<string>;
if (javaScriptUrls == null)
{
javaScriptUrls = new List<string>();
javaScriptUrls.Add(url);
}
else
{
if (!javaScriptUrls.Contains(url))
javaScriptUrls.Add(url);
}
Context.Items[JS_KEY] = javaScriptUrls;
Then OnPreRender of the MasterPage, it reads this List from the Context and builds tags in the header.
List<string> _javaScript = Context.Items[JS_KEY] as List<string>;
foreach (string js in _javaScript)
{
HtmlGenericControl script = new HtmlGenericControl();
script.TagName = "script";
script.Attributes.Add("type", "text/javascript");
if (js.StartsWith("~/"))
script.Attributes.Add("src", head.ResolveUrl(js));
else
script.Attributes.Add("src", js);
head.Controls.Add(script);
AddHeaderLineBreak(head);
}
加载中,请稍侯......
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