大家好,我正在研究 mvc3
在这里我需要从会话数据中删除以前上传的文件
anh我在插入数据库之前显示文件所以我在会话中显示数据现在我需要删除以前选择的文件请帮助如何获取选定的文件索引值以从会话中删除文件
例如在这里检查这篇文章它是在c#中,但我需要这是在mvc3中请帮助我完成这项工作请帮助我任何人
我的模型在这里
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
namespace BugTracker.Models
{
public class BugModel
{
public BugModel()
{
if (ListFile == null)
ListFile = new List<BugAttachment>();
}
public List<BugAttachment> ListFile { get; set; }
public string ErrorMessage { get; set; }
}
public class BugAttachment
{
public string FileName { get; set; }
public int BugAttachmentID { get; set; }
public string AttachmentName { get; set; }
public int BugID { get; set; }
public string AttachmentUrl { get; set; }
public string AttachedBy { get; set; }
}
}
这是我的控制器
public ActionResult UploadFile(string AttachmentName, BugModel model)
BugModel bug = null;
if (Session["CaptureData"] == null)
{
bug = model;
}
else
{
bug = (BugModel)Session["CaptureData"];
}
foreach (string inputTagName in Request.Files)
{
HttpPostedFileBase file1 = Request.Files[inputTagName];
if (file1.ContentLength > 0)
{
BugAttachment attachment = new BugAttachment();
var allowedExtensions = new[] { ".doc", ".xlsx", ".txt", ".jpeg", ".docx" };
var extension = Path.GetExtension(file1.FileName);
if (!allowedExtensions.Contains(extension))
{
model.ErrorMessage = "{ .doc, .xlsx, .txt, .jpeg }, files are allowed.... ";
}
else
{
string filename = Guid.NewGuid() + Path.GetFileName(file1.FileName);
string path = "/Content/UploadedFiles/" + filename;
string savedFileName = Path.Combine(Server.MapPath("~" + path));
file1.SaveAs(savedFileName);
attachment.FileName = "~" + path.ToString();
attachment.AttachmentName = AttachmentName;
attachment.AttachmentUrl = attachment.FileName;
bug.ListFile.Add(attachment);
model = bug;
}
Session["CaptureData"] = model;
}
}
ModelState.Clear();
return View("LoadBug", bug);
}
这里是我的查看页面
<div class="UploadMain">
<%:Html.Label("Attachment Name:") %>
<%:Html.TextBoxFor(model=>model.AttachmentName) %>
<span>
<%:Html.Label("Upload Files") %></span>
<input type="file" name="file" id="file" />
<input type="submit" value="Upload" id="Upload" class="style-name cancel" />
<%--onclick="window.location.href='<%= Url.Action("UploadFile", "Bug") %>';"--%>
<table align="center" class="gridtable" border="0" cellspacing="0" cellpadding="0">
<tr>
<th>
Attachment Name
</th>
<th>
Attachment Url
</th>
<th>
Action
</th>
</tr>
<% if (Model != null && Model.ListFile != null)
{ %>
<% foreach (var Emp in Model.ListFile)
{ %>
<tr class="Data">
<td >
<%:Emp.AttachmentName %>
</td>
<td >
<%: Emp.FileName %>
</td>
<td>
<%-- <%= Html.ActionLink("Delete", "Delete")%>--%>
<%:Html.ActionLink("Delete", "Delete", new { @FileName = Emp.FileName })%>
</td>
</tr>
<% } %>
<% } %>
</table>
</div>
例如在这里检查这篇文章它是在c#中,但我需要这是在mvc3中请帮助我完成这项工作请帮助我任何人
提前致谢