我能夠將單個文件作為 System.Web.HttpPostedFileBase 傳遞，但是當我傳遞相同的文件數組時，我在控制器的操作中得到 null。我試過發送文件數組。HTML: <input type="file" id="Attachment1"> <input type="file" id="Attachment2"> <input type="file" id="Attachment3"> <input type="file" id="Attachment4"> <input type="file" id="Attachment5">Java腳本： var FileData = []; $('input').each(function () { var type = $(this).attr("type"); if (type == "file") { FileData.push($(this).get(0).files[0]); } }); var Data = new FormData();Data.append("Attachments", FileData); if (url != '') { $.ajax({ url: url, data: Data, type: "POST", contentType: false, processData: false, success: function (data) { alert("Saved successfully"); } });}控制器：public ActionResult InsertDetails(System.Web.HttpPostedFileBase[] Attachments){ return Json(new { Success = false });}需要獲取文件數組。提前致謝。
3 回答
千巷貓影
TA貢獻1829條經驗 獲得超7個贊
我找到了解決方案。我只需要為相同的鍵“附件”保留附加文件?，F在我可以獲取 HttpPostedFileBase 數組。
var Data = new FormData();
$('input').each(function () {
var type = $(this).attr("type");
if (type == "file") {
var FileData = $(this).get(0).files[0]);
Data.append("Attachments", FileData);
}
});
慕尼黑的夜晚無繁華
TA貢獻1864條經驗 獲得超6個贊
嘗試一下：
var Files = new FormData();
$('input').each(function () {
var type = $(this).attr("type");
if (type == "file") {
Files .append("Attachment"+$(this).attr("id"), $(this).get(0).files[0]);
}
});
if (url != '') {
$.ajax({
url: url,
data: Files ,
type: "POST",
contentType: false,
processData: false,
success: function (data) {
alert("Saved successfully");
}
});
}
qq_笑_17
TA貢獻1818條經驗 獲得超7個贊
這就是我以前將數組數據從javascript發布到mvc 控制器的方式，這會有點冗長，但我已經用注釋解釋了每一行，我希望這可以幫助你
javascript:
var formData = new FormData(); //declare formData
var arrayData = []; //declare array and push/append your data to it.
var name="abc";
arrayData.push(name);
//setting ArrayData to Json Object
var AllData = {
getUserData: arrayData
};
//appending Json Object to formdata with the key "mydata"
formData.append("mydata", JSON.stringify(AllData));
//sending formdata through ajax request
$.ajax({
type: "POST",
url: yourURLHere,
processData: false,
contentType: false,
data: formData,
cache: false,
success: function (data) {
//your program logic here
}
});
控制器：
public async Task<HttpResponseMessage> SaveResponse()
{
//receiving json data from the key "mydata" we set earlier
var getData = HttpContext.Current.Request.Params["mydata"];
//deserialize json object (you will need Newtonsoft.Json library)
var model = JsonConvert.DeserializeObject<MyModel>(getData);
//you will get all of your data in model variable
//do what you want to do with that data
}
這是模型類
public class MyModel
{
//**dataList** will receive array data sent from javascript
public List<MyModel> dataList = new List<MyModel>();
//Remember, whatever your push to array in javascript, should be declared here.
public string name {get;set;}
}
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