Asp.net mvc MVC 3文件上传和模型绑定

Asp.net mvc MVC 3文件上传和模型绑定,asp.net-mvc,asp.net-mvc-3,razor,Asp.net Mvc,Asp.net Mvc 3,Razor,我有一个可以工作的表单上传,但是我想为我的数据库传递模型信息,以便用不同的名称保存文件 以下是我的观点: @model CertispecWeb.Models.Container @{ ViewBag.Title = "AddDocuments"; } <h2>AddDocuments</h2> @Model.ContainerNo @using (Html.BeginForm("Uploadfile", "Containers", FormMethod.Po

我有一个可以工作的表单上传,但是我想为我的数据库传递模型信息,以便用不同的名称保存文件

以下是我的观点:

@model CertispecWeb.Models.Container

@{
  ViewBag.Title = "AddDocuments";
}

<h2>AddDocuments</h2>

@Model.ContainerNo

@using (Html.BeginForm("Uploadfile", "Containers", FormMethod.Post, 
            new { enctype = "multipart/form-data" }))
{
    <input type='file' name='file' id='file' />
    <input type="submit" value="submit" />
}

模型信息不会传递给控制器。我已经读到,我可能需要更新模型,我该怎么做?

您的表单不包含文件以外的任何输入标记,因此在控制器操作中,您不能期望得到上传文件以外的任何内容(这就是发送到服务器的全部内容)。实现这一点的一种方法是包含一个包含模型id的隐藏标记,该标记将允许您从发布到的控制器操作中的数据存储中检索模型(如果用户不需要修改模型,只需附加一个文件,请使用该标记):

另一方面,如果希望允许用户修改此模型,则需要为要发送到服务器的模型的每个字段包含适当的输入字段:

@using (Html.BeginForm("Uploadfile", "Containers", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
    @Html.TextBoxFor(x => x.Prop1)
    @Html.TextBoxFor(x => x.Prop2)
    @Html.TextBoxFor(x => x.Prop3)
    <input type="file" name="file" id="file" />
    <input type="submit" value="submit" />
}

如果您不会总是将图像发布到您的操作中,您可以执行以下操作:

[HttpPost]
public ActionResult Uploadfile(Container container, HttpPostedFileBase file) 
{
    //do container stuff

    if (Request.Files != null)
    {
        foreach (string requestFile in Request.Files)
        {
            HttpPostedFileBase file = Request.Files[requestFile]; 
            if (file.ContentLength > 0)
            {
                string fileName = Path.GetFileName(file.FileName);
                string directory = Server.MapPath("~/App_Data/uploads/");
                if (!Directory.Exists(directory))
                {
                    Directory.CreateDirectory(directory);
                }
                string path = Path.Combine(directory, fileName);
                file.SaveAs(path);
            }
        }
    }

} 
解决

模型

控制器

public class BookController : Controller
{
     [HttpPost]
     public ActionResult Create(Book model, IEnumerable<HttpPostedFileBase> fileUpload)
     {
         throw new NotImplementedException();
     }
}
公共类BookController:控制器
{
[HttpPost]
公共操作结果创建(书本模型、IEnumerable文件上传)
{
抛出新的NotImplementedException();
}
}
和视图

@using (Html.BeginForm("Create", "Book", FormMethod.Post, new { enctype = "multipart/form-data" }))
{      
     @Html.EditorFor(m => m)

     <input type="file" name="fileUpload[0]" /><br />      
     <input type="file" name="fileUpload[1]" /><br />      
     <input type="file" name="fileUpload[2]" /><br />      

     <input type="submit" name="Submit" id="SubmitMultiply" value="Upload" />
}
@使用(Html.BeginForm(“Create”、“Book”、FormMethod.Post、new{enctype=“multipart/formdata”}))
{      
@EditorFor(m=>m)



}
注意:控制器操作参数的标题必须与输入元素的名称匹配
IEnumerable fileUpload
->
name=“fileUpload[0]”


文件上传
必须匹配多个文件

;请注意输入的较新“多个”属性:

表格:

@使用(Html.BeginForm(“FileImport”、“Import”、FormMethod.Post、new{enctype=“multipart/formdata”}))
{
文件名:
}
控制器:

[HttpPost]
public ActionResult Uploadfile(Container containers, HttpPostedFileBase file)
{
     if (file.ContentLength > 0)
     {
        var fileName = Path.GetFileName(file.FileName);
        var path = Path.Combine(Server.MapPath("~/App_Data/Uploads"),
                       containers.ContainerNo);
        file.SaveAs(path);
     }

     return RedirectToAction("Index");
}
[HttpPost]
public ActionResult FileImport(IEnumerable<HttpPostedFileBase> files)
{
    return View();
}
[HttpPost]
公共操作结果文件导入(IEnumerable文件)
{
返回视图();
}

首先从下面的url下载jquery.form.js文件

用cshtml编写下面的代码

@using (Html.BeginForm("Upload", "Home", FormMethod.Post, new { enctype = "multipart/form-data", id = "frmTemplateUpload" }))
{
    <div id="uploadTemplate">

        <input type="text" value="Asif" id="txtname" name="txtName" />


        <div id="dvAddTemplate">
            Add Template
            <br />
            <input type="file" name="file" id="file" tabindex="2" />
            <br />
            <input type="submit" value="Submit" />
            <input type="button" id="btnAttachFileCancel" tabindex="3" value="Cancel" />
        </div>

        <div id="TemplateTree" style="overflow-x: auto;"></div>
    </div>

    <div id="progressBarDiv" style="display: none;">
        <img id="loading-image" src="~/Images/progress-loader.gif" />
    </div>

}


<script type="text/javascript">

    $(document).ready(function () {
        debugger;
        alert('sample');
        var status = $('#status');
        $('#frmTemplateUpload').ajaxForm({
            beforeSend: function () {
                if ($("#file").val() != "") {
                    //$("#uploadTemplate").hide();
                    $("#btnAction").hide();
                    $("#progressBarDiv").show();
                    //progress_run_id = setInterval(progress, 300);
                }
                status.empty();
            },
            success: function () {
                showTemplateManager();
            },
            complete: function (xhr) {
                if ($("#file").val() != "") {
                    var millisecondsToWait = 500;
                    setTimeout(function () {
                        //clearInterval(progress_run_id);
                        $("#uploadTemplate").show();
                        $("#btnAction").show();
                        $("#progressBarDiv").hide();
                    }, millisecondsToWait);
                }
                status.html(xhr.responseText);
            }
        });

    });


</script>

我得到的
file
null
Request.Files.Count
也是0,如果
表单是
AjaxForm
并且也有
routeValue
,会有什么区别吗?请参阅相关问题此解决方案是我为多个文件找到的唯一解决方案。谢谢分享你的代码。
public class BookController : Controller
{
     [HttpPost]
     public ActionResult Create(Book model, IEnumerable<HttpPostedFileBase> fileUpload)
     {
         throw new NotImplementedException();
     }
}
@using (Html.BeginForm("Create", "Book", FormMethod.Post, new { enctype = "multipart/form-data" }))
{      
     @Html.EditorFor(m => m)

     <input type="file" name="fileUpload[0]" /><br />      
     <input type="file" name="fileUpload[1]" /><br />      
     <input type="file" name="fileUpload[2]" /><br />      

     <input type="submit" name="Submit" id="SubmitMultiply" value="Upload" />
}
@using (Html.BeginForm("FileImport","Import",FormMethod.Post, new {enctype = "multipart/form-data"}))
{
    <label for="files">Filename:</label>
    <input type="file" name="files" multiple="true" id="files" />
    <input type="submit"  />
}
[HttpPost]
public ActionResult FileImport(IEnumerable<HttpPostedFileBase> files)
{
    return View();
}
@using (Html.BeginForm("Upload", "Home", FormMethod.Post, new { enctype = "multipart/form-data", id = "frmTemplateUpload" }))
{
    <div id="uploadTemplate">

        <input type="text" value="Asif" id="txtname" name="txtName" />


        <div id="dvAddTemplate">
            Add Template
            <br />
            <input type="file" name="file" id="file" tabindex="2" />
            <br />
            <input type="submit" value="Submit" />
            <input type="button" id="btnAttachFileCancel" tabindex="3" value="Cancel" />
        </div>

        <div id="TemplateTree" style="overflow-x: auto;"></div>
    </div>

    <div id="progressBarDiv" style="display: none;">
        <img id="loading-image" src="~/Images/progress-loader.gif" />
    </div>

}


<script type="text/javascript">

    $(document).ready(function () {
        debugger;
        alert('sample');
        var status = $('#status');
        $('#frmTemplateUpload').ajaxForm({
            beforeSend: function () {
                if ($("#file").val() != "") {
                    //$("#uploadTemplate").hide();
                    $("#btnAction").hide();
                    $("#progressBarDiv").show();
                    //progress_run_id = setInterval(progress, 300);
                }
                status.empty();
            },
            success: function () {
                showTemplateManager();
            },
            complete: function (xhr) {
                if ($("#file").val() != "") {
                    var millisecondsToWait = 500;
                    setTimeout(function () {
                        //clearInterval(progress_run_id);
                        $("#uploadTemplate").show();
                        $("#btnAction").show();
                        $("#progressBarDiv").hide();
                    }, millisecondsToWait);
                }
                status.html(xhr.responseText);
            }
        });

    });


</script>
 public ActionResult Index()
        {
            ViewBag.Message = "Modify this template to jump-start your ASP.NET MVC application.";

            return View();
        }

 public void Upload(HttpPostedFileBase file, string txtname )
        {

            try
            {
                string attachmentFilePath = file.FileName;
                string fileName = attachmentFilePath.Substring(attachmentFilePath.LastIndexOf("\\") + 1);

           }
            catch (Exception ex)
            {

            }
        }