当我尝试从其中的文件夹传递所有文件时，MVC中的Bootstrap图像滑块中断 [英] Bootstrap image slider in MVC breaks when I try to pass all files from folder in it

问题描述

@{
    ViewBag.Title = "GalerijaIndex";
    Layout = "~/Views/Shared/_GalerijaLayout.cshtml";
}

<div id="mycarousel" class="carousel slide" data-ride="carousel" style="margin-top: -15px">

    <ol class="carousel-indicators">
        <li data-target="#mycarousel" data-slide-to="0" class="active"></li>
        <li data-target="#mycarousel" data-slide-to="1"></li>
        <li data-target="#mycarousel" data-slide-to="2"></li>
    </ol>
    <div class="carousel-inner" role="listbox">
        <div class="item active">
            <img src="~/Content/First/Music1.jpg" />
        </div>
        @{
            string source = "~/Content/Images/";
            string[] fileEntries = Directory.GetFiles(source);
            foreach (var i in fileEntries)
            {
                <div class="item">
                    <img src="~/Content/Images/@{Path.GetFileName(i)}" />
                </div>
             }
        }
             }


    <a class="left carousel-control" href="#mycarousel" role="button" data-slide="prev">
        <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
        <span class="sr-only">Prethodna</span>
    </a>

    <a class="right carousel-control" href="#mycarousel" role="button" data-slide="next">
        <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
        <span class="sr-only">Slijedeća</span>
    </a>
</div>

目标是填充滑块动力与~Content / Images /文件夹中的所有图像一起使用，以便显示它们。所有的逻辑都在View上，但我无法弄清楚为什么我会收到500错误。



我尝试了什么：



我尝试过我所知道的，但我不知道出了什么问题。其他一切都很好。我已经通过ViewBag从控制器尝试传递值，同样的事情;

The goal is to populate slider dynamically with all images in "~Content/Images/" folder, so that it can display them. All the logic is here on View, yet I can't figure out why I'm getting 500 error.

What I have tried:

I've tried what I known, but I have no idea what is wrong. Everything else works fine. I have tried pass value to it via ViewBag from controller, same thing;

推荐答案

你还没有告诉我们错误是什么，但是猜测一下，它可能来自这两行：

You still haven't told us what the error is, but at a guess, it probably comes from these two lines:

Quote：

string source =〜/ Content / Images /;

string [] fileEntries = Directory.GetFiles（source）;

string source = "~/Content/Images/";
string[] fileEntries = Directory.GetFiles(source);

Directory.GetFiles 方法预期文件夹的物理路径。您正在传递与应用程序相关的虚拟路径。由于 GetFiles 方法对ASP.NET应用程序一无所知，因此很可能会得到 DirectoryNotFoundException 。



要解决此问题，您需要将虚拟路径映射到物理路径：

The Directory.GetFiles method expects the physical path to the folder. You are passing in an app-relative virtual path. Since the GetFiles method knows nothing about ASP.NET applications, you will most likely get a DirectoryNotFoundException.

To fix that, you need to map the virtual path to a physical path:

string source = "~/Content/Images/";
string physicalPath = System.Web.Hosting.HostingEnvironment.MapPath(source);
string[] fileEntries = Directory.GetFiles(physicalPath);

注意： 这种代码实际上属于控制器，而不是视图。

NB: This sort of code really belongs in the controller, not the view.

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