普路托的想法比较好:

CustomWebViewPage.cs:

    public abstract class CustomWebViewPage<TModel> : WebViewPage<TModel> {

    public IHtmlString PartialWithScripts(string partialViewName, object model) {
        return Html.Partial(partialViewName: partialViewName, model: model, viewData: new ViewDataDictionary { ["view"] = this, ["html"] = Html });
    }

    public void RenderScriptsInBasePage(HelperResult scripts) {
        var parentView = ViewBag.view as WebPageBase;
        var parentHtml = ViewBag.html as HtmlHelper;
        parentView.DefineSection("scripts", () => {
            parentHtml.ViewContext.Writer.Write(scripts.ToHtmlString());
        });
    }
}

观点\ web . config:

<pages pageBaseType="Web.Helpers.CustomWebViewPage">

观点:

@PartialWithScripts("_BackendSearchForm")

部分(_BackendSearchForm.cshtml):

@{ RenderScriptsInBasePage(scripts()); }

@helper scripts() {
<script>
    //code will be rendered in a "scripts" section of the Layout page
</script>
}

布局页面:

@RenderSection("scripts", required: false)

我用这个方法解决了类似的问题:

@section ***{
@RenderSection("****", required: false)
}

我想这是一种很好的注射方式。

我能想到的第一个解决方案是使用ViewBag来存储必须呈现的值。

我从来没有试过，如果这个工作从一个局部的观点，但它应该在我看来。

如果你确实有合法的需要从一个部分运行一些js，这里是你可以做到的，jQuery是必需的:

<script type="text/javascript">        
    function scriptToExecute()
    {
        //The script you want to execute when page is ready.           
    }

    function runWhenReady()
    {
        if (window.$)
            scriptToExecute();                                   
        else
            setTimeout(runWhenReady, 100);
    }
    runWhenReady();
</script>

好吧，我猜其他海报已经为你提供了一种直接在你的部分中包含@section的方法(通过使用第三方html助手)。

但是，我认为，如果你的脚本是紧密耦合到你的部分，只是把你的javascript直接放在一个内联<script>标签在你的部分，并完成它(只是要小心脚本复制，如果你打算使用部分不止一次在一个视图);

从这个线程中的解决方案，我提出了以下可能过于复杂的解决方案，让你延迟渲染任何html(脚本)在一个using块。

使用

创建section

Typical scenario: In a partial view, only include the block one time no matter how many times the partial view is repeated in the page: @using (Html.Delayed(isOnlyOne: "some unique name for this section")) { <script> someInlineScript(); </script> } In a partial view, include the block for every time the partial is used: @using (Html.Delayed()) { <b>show me multiple times, @Model.Whatever</b> } In a partial view, only include the block once no matter how many times the partial is repeated, but later render it specifically by name when-i-call-you: @using (Html.Delayed("when-i-call-you", isOnlyOne: "different unique name")) { <b>show me once by name</b> <span>@Model.First().Value</span> }

渲染“sections”

(即在父视图中显示延迟的部分)

@Html.RenderDelayed(); // writes unnamed sections (#1 and #2, excluding #3)
@Html.RenderDelayed("when-i-call-you", false); // writes the specified block, and ignore the `isOnlyOne` setting so we can dump it again
@Html.RenderDelayed("when-i-call-you"); // render the specified block by name
@Html.RenderDelayed("when-i-call-you"); // since it was "popped" in the last call, won't render anything due to `isOnlyOne` provided in `Html.Delayed`

CODE

public static class HtmlRenderExtensions {

    /// <summary>
    /// Delegate script/resource/etc injection until the end of the page
    /// <para>@via https://stackoverflow.com/a/14127332/1037948 and http://jadnb.wordpress.com/2011/02/16/rendering-scripts-from-partial-views-at-the-end-in-mvc/ </para>
    /// </summary>
    private class DelayedInjectionBlock : IDisposable {
        /// <summary>
        /// Unique internal storage key
        /// </summary>
        private const string CACHE_KEY = "DCCF8C78-2E36-4567-B0CF-FE052ACCE309"; // "DelayedInjectionBlocks";

        /// <summary>
        /// Internal storage identifier for remembering unique/isOnlyOne items
        /// </summary>
        private const string UNIQUE_IDENTIFIER_KEY = CACHE_KEY;

        /// <summary>
        /// What to use as internal storage identifier if no identifier provided (since we can't use null as key)
        /// </summary>
        private const string EMPTY_IDENTIFIER = "";

        /// <summary>
        /// Retrieve a context-aware list of cached output delegates from the given helper; uses the helper's context rather than singleton HttpContext.Current.Items
        /// </summary>
        /// <param name="helper">the helper from which we use the context</param>
        /// <param name="identifier">optional unique sub-identifier for a given injection block</param>
        /// <returns>list of delayed-execution callbacks to render internal content</returns>
        public static Queue<string> GetQueue(HtmlHelper helper, string identifier = null) {
            return _GetOrSet(helper, new Queue<string>(), identifier ?? EMPTY_IDENTIFIER);
        }

        /// <summary>
        /// Retrieve a context-aware list of cached output delegates from the given helper; uses the helper's context rather than singleton HttpContext.Current.Items
        /// </summary>
        /// <param name="helper">the helper from which we use the context</param>
        /// <param name="defaultValue">the default value to return if the cached item isn't found or isn't the expected type; can also be used to set with an arbitrary value</param>
        /// <param name="identifier">optional unique sub-identifier for a given injection block</param>
        /// <returns>list of delayed-execution callbacks to render internal content</returns>
        private static T _GetOrSet<T>(HtmlHelper helper, T defaultValue, string identifier = EMPTY_IDENTIFIER) where T : class {
            var storage = GetStorage(helper);

            // return the stored item, or set it if it does not exist
            return (T) (storage.ContainsKey(identifier) ? storage[identifier] : (storage[identifier] = defaultValue));
        }

        /// <summary>
        /// Get the storage, but if it doesn't exist or isn't the expected type, then create a new "bucket"
        /// </summary>
        /// <param name="helper"></param>
        /// <returns></returns>
        public static Dictionary<string, object> GetStorage(HtmlHelper helper) {
            var storage = helper.ViewContext.HttpContext.Items[CACHE_KEY] as Dictionary<string, object>;
            if (storage == null) helper.ViewContext.HttpContext.Items[CACHE_KEY] = (storage = new Dictionary<string, object>());
            return storage;
        }


        private readonly HtmlHelper helper;
        private readonly string identifier;
        private readonly string isOnlyOne;

        /// <summary>
        /// Create a new using block from the given helper (used for trapping appropriate context)
        /// </summary>
        /// <param name="helper">the helper from which we use the context</param>
        /// <param name="identifier">optional unique identifier to specify one or many injection blocks</param>
        /// <param name="isOnlyOne">extra identifier used to ensure that this item is only added once; if provided, content should only appear once in the page (i.e. only the first block called for this identifier is used)</param>
        public DelayedInjectionBlock(HtmlHelper helper, string identifier = null, string isOnlyOne = null) {
            this.helper = helper;

            // start a new writing context
            ((WebViewPage)this.helper.ViewDataContainer).OutputStack.Push(new StringWriter());

            this.identifier = identifier ?? EMPTY_IDENTIFIER;
            this.isOnlyOne = isOnlyOne;
        }

        /// <summary>
        /// Append the internal content to the context's cached list of output delegates
        /// </summary>
        public void Dispose() {
            // render the internal content of the injection block helper
            // make sure to pop from the stack rather than just render from the Writer
            // so it will remove it from regular rendering
            var content = ((WebViewPage)this.helper.ViewDataContainer).OutputStack;
            var renderedContent = content.Count == 0 ? string.Empty : content.Pop().ToString();
            // if we only want one, remove the existing
            var queue = GetQueue(this.helper, this.identifier);

            // get the index of the existing item from the alternate storage
            var existingIdentifiers = _GetOrSet(this.helper, new Dictionary<string, int>(), UNIQUE_IDENTIFIER_KEY);

            // only save the result if this isn't meant to be unique, or
            // if it's supposed to be unique and we haven't encountered this identifier before
            if( null == this.isOnlyOne || !existingIdentifiers.ContainsKey(this.isOnlyOne) ) {
                // remove the new writing context we created for this block
                // and save the output to the queue for later
                queue.Enqueue(renderedContent);

                // only remember this if supposed to
                if(null != this.isOnlyOne) existingIdentifiers[this.isOnlyOne] = queue.Count; // save the index, so we could remove it directly (if we want to use the last instance of the block rather than the first)
            }
        }
    }


    /// <summary>
    /// <para>Start a delayed-execution block of output -- this will be rendered/printed on the next call to <see cref="RenderDelayed"/>.</para>
    /// <para>
    /// <example>
    /// Print once in "default block" (usually rendered at end via <code>@Html.RenderDelayed()</code>).  Code:
    /// <code>
    /// @using (Html.Delayed()) {
    ///     <b>show at later</b>
    ///     <span>@Model.Name</span>
    ///     etc
    /// }
    /// </code>
    /// </example>
    /// </para>
    /// <para>
    /// <example>
    /// Print once (i.e. if within a looped partial), using identified block via <code>@Html.RenderDelayed("one-time")</code>.  Code:
    /// <code>
    /// @using (Html.Delayed("one-time", isOnlyOne: "one-time")) {
    ///     <b>show me once</b>
    ///     <span>@Model.First().Value</span>
    /// }
    /// </code>
    /// </example>
    /// </para>
    /// </summary>
    /// <param name="helper">the helper from which we use the context</param>
    /// <param name="injectionBlockId">optional unique identifier to specify one or many injection blocks</param>
    /// <param name="isOnlyOne">extra identifier used to ensure that this item is only added once; if provided, content should only appear once in the page (i.e. only the first block called for this identifier is used)</param>
    /// <returns>using block to wrap delayed output</returns>
    public static IDisposable Delayed(this HtmlHelper helper, string injectionBlockId = null, string isOnlyOne = null) {
        return new DelayedInjectionBlock(helper, injectionBlockId, isOnlyOne);
    }

    /// <summary>
    /// Render all queued output blocks injected via <see cref="Delayed"/>.
    /// <para>
    /// <example>
    /// Print all delayed blocks using default identifier (i.e. not provided)
    /// <code>
    /// @using (Html.Delayed()) {
    ///     <b>show me later</b>
    ///     <span>@Model.Name</span>
    ///     etc
    /// }
    /// </code>
    /// -- then later --
    /// <code>
    /// @using (Html.Delayed()) {
    ///     <b>more for later</b>
    ///     etc
    /// }
    /// </code>
    /// -- then later --
    /// <code>
    /// @Html.RenderDelayed() // will print both delayed blocks
    /// </code>
    /// </example>
    /// </para>
    /// <para>
    /// <example>
    /// Allow multiple repetitions of rendered blocks, using same <code>@Html.Delayed()...</code> as before.  Code:
    /// <code>
    /// @Html.RenderDelayed(removeAfterRendering: false); /* will print */
    /// @Html.RenderDelayed() /* will print again because not removed before */
    /// </code>
    /// </example>
    /// </para>

    /// </summary>
    /// <param name="helper">the helper from which we use the context</param>
    /// <param name="injectionBlockId">optional unique identifier to specify one or many injection blocks</param>
    /// <param name="removeAfterRendering">only render this once</param>
    /// <returns>rendered output content</returns>
    public static MvcHtmlString RenderDelayed(this HtmlHelper helper, string injectionBlockId = null, bool removeAfterRendering = true) {
        var stack = DelayedInjectionBlock.GetQueue(helper, injectionBlockId);

        if( removeAfterRendering ) {
            var sb = new StringBuilder(
#if DEBUG
                string.Format("<!-- delayed-block: {0} -->", injectionBlockId)
#endif
                );
            // .count faster than .any
            while (stack.Count > 0) {
                sb.AppendLine(stack.Dequeue());
            }
            return MvcHtmlString.Create(sb.ToString());
        } 

        return MvcHtmlString.Create(
#if DEBUG
                string.Format("<!-- delayed-block: {0} -->", injectionBlockId) + 
#endif
            string.Join(Environment.NewLine, stack));
    }


}