0
我正在使用Jasny Fileupload來添加圖像並將其更新爲文章。當用戶添加或編輯文章時,一切正常,除非用戶選擇使用現有圖像編輯文章,但不會更改或刪除圖像。ASP.NET MVC Jasny如何在編輯操作中檢查現有文件
基本上我的文件輸入在這個實例中是空的,所以我現在的代碼假設用戶已經刪除了圖像並相應地設置了模型屬性。
在我的控制器我有以下幾點:
if (file != null)
{
var fileName = Guid.NewGuid().ToString() + Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("/Content/ArticleImages"), fileName);
file.SaveAs(path);
articleToUpdate.ImagePath = fileName;
}
else
{
articleToUpdate.ImagePath = null;
}
我的觀點:
@if (Model.article.ImagePath == null)
{
<div class="fileupload fileupload-new" data-provides="fileupload">
<div class="fileupload-preview thumbnail" style="width: 200px; height: 150px; margin-top: 10px">
</div>
<div>
<span class="btn btn-file"><span class="fileupload-new">Select image</span><span
class="fileupload-exists">Change</span><input type="file" name="file" /></span>
<a href="#" class="btn fileupload-exists" data-dismiss="fileupload">Remove</a>
</div>
</div>
}
else
{
<div class="fileupload fileupload-exists" data-provides="fileupload">
<div class="fileupload-preview thumbnail" style="width: 200px; height: 150px; margin-top: 10px">
<img src="/Content/ArticleImages/@Model.article.ImagePath"/>
</div>
<div>
<span class="btn btn-file"><span class="fileupload-new">Select image</span><span
class="fileupload-exists">Change</span><input type="file" name="file" /></span>
<a href="#" class="btn fileupload-exists" data-dismiss="fileupload">Remove</a>
</div>
</div>
}
我怎麼能在我的位指示,請檢查用戶是否已經沒有modiied的形象,反對刪除或更改它?