我们有一个页面，目前包含四个或五个部分视图，但可能会增长。目前，有两个POST操作，两个完全不同的数据库函数。
如果我们尝试在另一个上执行create function，则重定向会导致“对象引用未设置为对象的实例”。错误，然后与其他POST局部视图相关。
有办法阻止这个吗？从本质上讲，在我看来，一个局部视图的帖子试图与另一个视图进行交互。有什么想法吗？
由于
用于创建的公告控制器：
[HttpPost]
public ActionResult CreateMain(BulletinsViewModel viewModel)
{
if (ModelState.IsValid)
{
BulletinsContext.tblBulletins.Add(new tblBulletin
{
ID = viewModel.BulletinID,
BulletinDisplayDate = viewModel.BulletinDisplayDate,
BulletinFilename = viewModel.MainBulletinName,
IsSixthForm = viewModel.IsSixthForm
});
//For loop to delete bulletins
//If bulletin folder has more than 10 files in
//Delete the oldest file, itererate till only 10 remain
{
DirectoryInfo dir = new DirectoryInfo(@"D:\Inetpub\WWWroot\intranet\Dashboard\Dashboard\Files\Bulletins");
List<FileInfo> filePaths = dir.GetFiles().OrderByDescending(p => p.CreationTime).ToList();
for (int index = filePaths.Count() - 1; index > 9; index--)
{
var fileNames = filePaths[index].Name;
//Delete from directory
filePaths[index].Delete();
//Remove from collection to restart the loop
filePaths.RemoveAt(index);
}
}
//Save changes to database
BulletinsContext.SaveChanges();
//Return to main bulletins index page
return RedirectToAction("~/Home/Index");
}
return View(viewModel);
}
公告创建视图：
@model Dashboard.Viewmodels.BulletinsViewModel
@{
ViewBag.Title = "Create";
}
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
@Html.LabelFor(model => model.BulletinDisplayDate, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.BulletinDisplayDate, new { htmlAttributes = new { @class = "form-control", @id = "datepicker-basic", @readonly = "readonly" } })
@Html.ValidationMessageFor(model => model.BulletinDisplayDate, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.MainBulletinName, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
<div class="input-group">
@Html.EditorFor(model => model.MainBulletinName, new { htmlAttributes = new { @class = "form-control", @Value = "Select File...", @readonly="readonly" } })
<span class="input-group-addon" href="javascript:;" onclick="moxman.browse({ fields: 'MainBulletinName', extensions: 'pdf', path: 'D:/Inetpub/WWWroot/intranet/Dashboard/Dashboard/Files/Bulletins' });" style="cursor: pointer;"><i class="fa fa-upload"></i></span>
@Html.ValidationMessageFor(model => model.MainBulletinName, "", new { @class = "text-danger" })
</div>
</div>
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-default" />
</div>
</div>
}
<script type="text/javascript" src="~/Scripts/tinymce/plugins/moxiemanager/js/moxman.loader.min.js"></script>
打印机积分创建控制器：
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult PrinterCredits(PrinterCreditsViewModel viewModel)
{
if (ModelState.IsValid)
{
//Send the email if credits are added..
//Create a bunch of variables for the email
//Create the email body etc
var fromAddress = "";
string toName = Request.Form["Username"].ToUpper();
string AmountOfCredits = Request.Form["AmountAdded"];
string Plural = "";
string Title = "";
string AddedByWho = User.Identity.Name.Split('\\')[1];
System.DateTime AddedWhen = DateTime.Now;
if (AmountOfCredits == "1")
{
Plural = " printer credit has ";
Title = "Printer Credit Added!";
}
else
{
Plural = " printer credits have ";
Title = "Printer Credits Added!";
}
var toEmail = toName + "";
var subject = AmountOfCredits + Plural + "been added to your account, " + toName;
string body = "";
//Create an SMTP client for sending an email
var smtp = new SmtpClient
{
Host = "",
Port = 25,
EnableSsl = false,
DeliveryMethod = SmtpDeliveryMethod.Network,
UseDefaultCredentials = true,
};
//Populate the SMTP client and encode the body for the HTML
using (var message = new MailMessage(fromAddress, toEmail)
{
Subject = subject,
Body = body,
IsBodyHtml = true,
BodyEncoding = System.Text.Encoding.UTF8
})
//Try to send the email. If sent, insert data.
//Redirect back to original page
//Take current printer credit from and update with fund + cost
try
{
//Link the viewmodel and the database together
PartialViewContext.tblPrinterCredits.Add(new tblPrinterCredit
{
Username = viewModel.Username,
AmountAdded = viewModel.AmountAdded,
AddedBy = AddedByWho,
AddedWhen = viewModel.AddedWhen,
Money = viewModel.AmountAdded * 0.02
});
Nullable<double> cost = viewModel.AmountAdded * 0.02;
//Update the printer credit fund and insert into tblOption
tblOption fund = (
from n in PartialViewContext.tblOptions
where n.ID == 1
select n).First();
fund.PrinterCreditFund = fund.PrinterCreditFund + cost;
PartialViewContext.SaveChanges();
message.CC.Add("");
smtp.Send(message);
Response.Redirect("~/Home/Index");
}
//If it fails, go chicken oriental (only a redirect, will eventually become a crazy message)
catch
{
smtp.Send(message);
Response.Redirect("~/Home/Index");
}
}
return View(viewModel);
打印机积分查看：
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="panel">
<div class="panel-heading">
<span class="panel-icon">
<i class="fa fa-print"></i>
</span>
Add Printer Credits - @Costings
</div>
<div class="panel-body">
<div class="form-horizontal">
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
<label class="control-label col-md-3">User:</label>
<div class="col-xs-8">
@Html.EditorFor(model => model.Username, new { htmlAttributes = new { @class = "form-control", @id = "Username", @name = "Username", @maxlength = "6" } })
@Html.ValidationMessageFor(model => model.Username, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
<label class="control-label col-md-3">Amount:</label>
<div class="col-xs-8">
@Html.EditorFor(model => model.AmountAdded, new { htmlAttributes = new { @class = "form-control", @id = "AmountAdded", @onkeyup = "Update()", @Value = 0 } })
@Html.ValidationMessageFor(model => model.AmountAdded, "", new { @class = "text-danger", @type="number" })
</div>
</div>
<div class="form-group">
<label class="control-label col-md-3">Cost:</label>
<div class="col-xs-8">
@Html.EditorFor(model => model.TotalCost, new { htmlAttributes = new { @class = "form-control", @id = "TotalCost", @readonly = "readonly", @Value = "0" } })
@Html.ValidationMessageFor(model => model.TotalCost, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-1 col-md-10">
<input type="submit" value="Add Printer Credits" class="btn btn-primary btn-gradient dark btn-block" />
@Html.EditorFor(model => model.AddedBy, new { htmlAttributes = new { @class = "form-control", @Value = User.Identity.Name.Split('\\')[1], @Style = "display: none;" } })
@Html.ValidationMessageFor(model => model.AddedBy, "", new { @class = "text-danger" })
</div>
</div>
</div>
</div>
</div>
}
<script type="text/javascript">
$(document).ready(
function () {
Update();
$('#AmountAdded, #TotalCost')
.keyup(function () {
Update();
})
}
);
function Update() {
var cost = 2
var one = $('#AmountAdded'),
two = $('#TotalCost');
two.val(parseInt(one.val()) * cost / 100);
}
</script>
<script type="text/javascript">
document.getElementById('Username').focus()
</script>
答案 0 :(得分：0)
尽管有两个不同的控制器正在运行视图，但我还是想知道我需要告诉表单使用哪个动作和控制器。但无论如何，一个例子是：
@using (Html.BeginForm("CreateMain", "Bulletins", FormMethod.Post, new { }))