Html Helper，RenderPartial如何工作？如何实现可以从局部视图中引入内容的帮助程序？

When you use Html.RenderPartial is takes the name of the view you want to render, and renders it's content in that place.

当您使用Html.RenderPartial时，将获取您要呈现的视图的名称，并在该位置呈现它的内容。

I would like to implement something similar. I would like it to take the name of the view you want to render, along with some other variables, and render the content within a container..

我想实现类似的东西。我希望它获取您要呈现的视图的名称，以及一些其他变量，并在容器中呈现内容。

For example:

例如：

public static class WindowHelper
{
    public static string Window(this HtmlHelper helper, string name, string viewName)
    {
        var sb = new StringBuilder();

        sb.Append("<div id='" + name + "_Window' class='window'>");
        //Add the contents of the partial view to the string builder.
        sb.Append("</div>");

        return sb.ToString();
    }
}

Anyone know how to do this?

有人知道怎么做吗？

3 个解决方案

#1

The RenderPartial extensions are programmed to render directly to the Response object... you can see this in the source code for them:

RenderPartial扩展被编程为直接呈现给Response对象...您可以在源代码中看到它们：

....).Render(viewContext, this.ViewContext.HttpContext.Response.Output);

This means that if you change your approach a little bit, you can probably accomplish what you want. Rather than appending everything to a StringBuilder, you could do something like this:

这意味着如果你稍微改变你的方法，你可以完成你想要的。您可以执行以下操作，而不是将所有内容附加到StringBuilder：

using System.Web.Mvc.Html;

public static class WindowHelper
{
    public static void Window(this HtmlHelper helper, string name, string viewName)
    {
        var response = helper.ViewContext.HttpContext.Response;
        response.Write("<div id='" + name + "_Window' class='window'>");

        //Add the contents of the partial view to the string builder.
        helper.RenderPartial(viewName);

        response.Write("</div>");
    }
}

Note that including System.Web.Mvc.Html allows you access to the RenderPartial() methods.

请注意，包括System.Web.Mvc.Html允许您访问RenderPartial（）方法。

#2

We are fixing this in MVC 2. You will be able to call Html.Partial() and get the actual contents of the view as a string.

我们正在MVC 2中解决这个问题。您将能够调用Html.Partial（）并将视图的实际内容作为字符串获取。

#3

Why not create a second view and have the partial inside that, pass Name as ViewData or in model etc..

为什么不创建第二个视图并在其中包含部分内容，将Name作为ViewData或模型等传递。

Something like:

就像是：

<div id='<%= ViewData["Name"] + "_Window"%>' class='window'>
   <% Html.RenderPartial(ViewData["Name"]); %>
</div>

Hope that helps, Dan

希望有所帮助，丹

#1