2
我的模型MVC图为byte []
partial class Company
{
... More Properties
public HttpPostedFileBase FilePicture { get; set; }
public byte[] Picture { get; set; }
}
我的控制器
[HttpPost]
public ActionResult Edit(int id, Models.Company model)
{
if(model.FilePicture != null)
{
using(Stream inputStream = model.FilePicture.InputStream)
{
MemoryStream memoryStream = inputStream as MemoryStream;
if(memoryStream == null)
{
memoryStream = new MemoryStream();
inputStream.CopyTo(memoryStream);
}
model.Picture = memoryStream.ToArray();
}
}
//EditDefault does the persisting
return this.EditDefault(id, model);
}
我查看
@using (Html.BeginForm("Edit", currentController, null, FormMethod.Post, new { enctype = "multipart/form-data" }))
{
//Clicks on the Picture and the Upload butten are forwarded to the file input tag
//readUrl sets the image as sone as the file changes
<input id="filePicture" type="file" name="filePicture" onchange="readURL(this);">
<button type="button" id="pictureUploadBtnPicture" onclick="$('#filePicture').click();"> Upload</button>
//ClearImg clears the img tag and resets the file input tag
<button type="button" id="pictureDeleteBtnPicture" onclick="clearimg(this);"> Delete</button>
...if Picture not null
...{
<img id="PicturePicture" src="data:image/png;base64,@System.Convert.ToBase64String(@Model.Picture.ToArray())">
<input type="hidden" value="@System.Convert.ToBase64String(@Model.Picture.ToArray())" name="Picture"> **added**
...}
...else ... Render empty Picture and set it per javascript
<input type="submit" value="Safe" class="btn btn-primary">
}
我有一个包含类似名称的一些属性窗体，城市，。 ..和一个包含图片数据的字节[]。上传，显示和删除正在工作。我现在的问题是，当我改变一些东西，并且我再次安全了网站时，模型中的图片属性为null，我在Post Action中获得。我想有一些东西与映射无关。
只是想清楚我想img映射到字节[]。
THX提前任何帮助:)
更新：
THX马特·泰伯;）
增加了一个隐藏的输入字段，现在我明白了在控制器中。
更新了视图，以防有人需要它。