Question

在使用其他语言漫游后，我回到了C＃。文件成功移动到2个位置后，我遇到了问题。问题：我无法看到上传的缩略图。问题出现在CS代码上，当我在这里准确列出图像时，我不知道如何调用文件来读取，使用哪条路径......

using System;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Collections.Generic;

public partial class CS : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string[] filePaths = Directory.GetFiles("C:\\Image_folder\\");
            List <ListItem> files = new List<ListItem>();
            foreach (string filePath in filePaths)
            {
                string fileName = Path.GetFileName(filePath);
                files.Add(new ListItem(fileName, "C:/Image_folder/" + fileName));
            }
            GridView1.DataSource = files;
            GridView1.DataBind();
        }
    }
    protected void Upload(object sender, EventArgs e)
    {
        if (FileUpload1.HasFile)
        {
            string fileName = Path.GetFileName(FileUpload1.PostedFile.FileName);
            FileUpload1.PostedFile.SaveAs("C:\\Image_folder\\" + fileName);
            File.Copy("C:\\Image_folder\\" + fileName, "\\\\192.168.1.1\\shared_image_folder\\" + fileName, true);
            Response.Redirect(Request.Url.AbsoluteUri);
        }
    }
}

欢迎任何帮助

ASPX

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>

</title></head>
<body>
    <form method="post" action="./CS.aspx" id="form1" enctype="multipart/form-data">
<div class="aspNetHidden">
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="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" />
</div>

    <input type="file" name="FileUpload1" id="FileUpload1" />
    <input type="submit" name="btnUpload" value="Upload" id="btnUpload" />
    <hr />
    <div>
    <table cellspacing="0" rules="all" border="1" id="GridView1" style="border-collapse:collapse;">
        <tr>
            <td>2844x1600-backgrounds.png</td><td><img src="" style="height:100px;width:100px;" /></td>
        </tr><tr>
            <td>background_skyeee.jpg</td><td><img src="" style="height:100px;width:100px;" /></td>
        </tr><tr>
            <td>background_skyeeee.jpg</td><td><img src="" style="height:100px;width:100px;" /></td>
        </tr>
    </table>
</div>

<div class="aspNetHidden">

    <input type="hidden" name="__VIEWSTATEGENERATOR" id="__VIEWSTATEGENERATOR" value="17CECB09" />
    <input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEdAAJ1o9wC/FD3hrc5v52GfoAN5vhDofrSSRcWtmHPtJVt4Nr3LRFm+giVnIqfnqj9kuxQ47Dj1gv1HmdZrTjLiXPV" />
</div></form>

<!-- Visual Studio Browser Link -->
<script type="application/json" id="__browserLink_initializationData">
    {"appName":"Chrome","requestId":"336b94aad34847b39a4af20e67138af9"}
</script>
<script type="text/javascript" src="http://localhost:60480/011c96c87fbd421fa3485ec4702d5c1b/browserLink" async="async"></script>
<!-- End Browser Link -->

</body>
</html>

CS

IsSynchronizedWithCurrentItem="True"

来自网格的来源

slova = dict()
    for line in text:
        line = re.split('[^a-z]',text)
        line[i] = filter(None,line)
        i =+ 1
    i = 0
    for line in text:
        for word in line:
            if word not in slova:
                slova[word] = i
                i += 1

Answer 1

问题是您正在使用图像的绝对路径。您必须使用应用程序的相对路径。为此，您可以将原始文件夹复制到项目文件夹中。没有必要将此文件夹包含在项目中。然后只需更改下面的代码

string[] filePaths = Directory.GetFiles(Server.MapPath("~/Image_folder"));
List<ListItem> files = new List<ListItem>();
foreach (string filePath in filePaths)
{
    string fileName = Path.GetFileName(filePath);
    files.Add(new ListItem(fileName, "~/Image_folder/" + fileName));
}
GridView1.DataSource = files;
GridView1.DataBind();

您还必须更改上传代码以使用项目中的文件夹。使用以下代码

FileUpload1.PostedFile.SaveAs(Server.MapPath("~/Image_folder/") + fileName);
File.Copy(Server.MapPath("~/Image_folder/") + fileName, "\\\\192.168.1.1\\shared_image_folder\\" + fileName, true);

图像（缩略图）不显示在aspx网页中

1 个答案: