我设法得到了字幕foreach
循环但现在我面临一个新问题。
由于嵌套循环,我的数据库中出现重复项,请检查下面的代码。
JavaScript
window.onload = function () {
if (window.File && window.FileList && window.FileReader) {
var filesInput = document.getElementById("galleryFilesAdd");
filesInput.addEventListener("change", function (event) {
var files = event.target.files; //FileList object
var output = document.getElementById("result");
for (var i = 0; i < files.length; i++) {
var file = files[i];
if (!file.type.match('image'))
continue;
var picReader = new FileReader();
picReader.addEventListener("load", function (event) {
var picFile = event.target;
var div = document.createElement("div");
div.innerHTML = "<img class='thumbnail img-responsive' alt='" + picFile.name + "' + height='220' width='300'; src='" + picFile.result + "'" +
"title='" + picFile.name + "'/><button type='button' class='delete btn btn-default' class='remove_pic'> <span class='glyphicon glyphicon-remove' aria-hidden='true'></span></button><input type='text' id ='imagecaption[]' name='imagecaption[]' class='form-control' placeholder='Add Image Caption'>"
output.insertBefore(div, null);
div.children[1].addEventListener("click", function (event) {
div.parentNode.removeChild(div);
});
});
//Read the image
picReader.readAsDataURL(file);
}
});
}
else {
console.log("Your browser does not support File API");
}
}
控制器
public async Task<ActionResult> AddHotel(HotelViewModels.AddHotel viewModel, IEnumerable<HttpPostedFileBase> galleryFilesAdd)
{
try
{
if (ModelState.IsValid)
{
foreach (var files in galleryFilesAdd)
{
var fileName = Guid.NewGuid().ToString("N");
var extension = Path.GetExtension(files.FileName).ToLower();
string thumbpath, imagepath = "";
using (var img = Image.FromStream(files.InputStream))
{
foreach (var caption in viewModel.imagecaption)
{
var galleryImg = new hotel_gallery_image
{
hotel_id = hotel.id,
thumbPath = String.Format("/Resources/Images/Hotel/GalleryThumb/{0}{1}", fileName, extension),
imagePath = String.Format("/Resources/Images/Hotel/Gallery/{0}{1}", fileName, extension),
entry_datetime = DateTime.Now,
guid = Guid.NewGuid().ToString("N"),
enabled = true,
image_caption = caption
};
db.hotel_gallery_image.Add(galleryImg);
}
}
}
await db.SaveChangesAsync();
return RedirectToAction("Index", "Hotel");
}
}
catch (DbEntityValidationException ex)
{
string errorMessages = string.Join("; ", ex.EntityValidationErrors.SelectMany(x => x.ValidationErrors).Select(x => x.PropertyName + ": " + x.ErrorMessage));
throw new DbEntityValidationException(errorMessages);
}
viewModel.Country = await db.countries.ToListAsync();
return View(viewModel);
}
和视图模型
public string[] imagecaption { get; set; }
已将数据插入数据库