我在MVC中有一个搜索功能来获取匹配的事务。加载事务时,将使用结果填充表。此结果我想发布到控制器以将事务导出到Excel文件。问题是,当我将我的视图模型发布到我的控制器时,整个视图模型都是空的。我已经搜索了很多,它有一些不同的结果,但我不能让它工作。这是我的代码:
已更新
查看型号:
public class TransactionsViewModel : ViewModelBase
{
public TransactionsViewModel()
{
Charges = new List<Transaction>();
Invoices = new List<Invoices>();
}
public List<Transaction> Charges { get; set; }
public List<Invoices> Invoices { get; set; }
[DisplayName("Telefonnummer")]
public string PhoneNumber { get; set; }
[DisplayName("Personnummer")]
public string PersonalIdentityNumber { get; set; }
[DisplayName("Ordernummer")]
public string OrderNumber { get; set; }
[DisplayName("Orderbeskrivning")]
public string OrderDescription { get; set; }
// A lot of other input format controls
public class Transaction
{
public string Status { get; set; }
public DateTime Date { get; set; }
public string Msisdn { get; set; }
public string OrderNo { get; set; }
public string NetsId { get; set; }
public string Reference { get; set; }
public string Message { get; set; }
public decimal Amount { get; set; }
public decimal Vat { get; set; }
public string Merchant { get; set; }
public decimal Fee { get; set; }
public string PaymentType { get; set; }
public string OrderNumber { get; set; }
public string OrderDescription { get; set; }
}
}
查看
<div id="transactionsdiv">
@using (Html.BeginForm("SearchTransactions", "Transactions", FormMethod.Get, new { @class = "merchant-form" }))
{
<div class="left-col">
<div class="form-group">
@Html.LabelFor(model => model.PhoneNumber)
@Html.EditorFor(model => model.PhoneNumber, new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.PhoneNumber, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-button">
<input type="submit" value="Sök" class="btn btn-primary" />
</div>
}
<div>
@Html.Partial("ExportFiles")
</div>
ExportFiles
<div id="">
@using (Html.BeginForm("ExportTransactions", "Transactions", FormMethod.Post, new { @class = "merchant-form" }))
{
<input type="submit" value="Exportera" class="btn btn-primary" />
if (Model.Charges != null)
{
for (int i = 0; i < Model.Charges.Count; i++)
{
<input type="hidden" name="command.Transaction[i].Date" value="@(Model.Charges[i].Date)" />
<input type="hidden" name="command.Transaction[i].Status" value="@(Model.Charges[i].Status)" />
<input type="hidden" name="command.Transaction[i].Msisdn" value="@(Model.Charges[i].Msisdn)" />
<input type="hidden" name="command.Transaction[i].OrderNo" value="@(Model.Charges[i].OrderNo)"/>
<input type="hidden" name="command.Transaction[i].NetsId" value="@(Model.Charges[i].NetsId)"/>
<input type="hidden" name="command.Transaction[i].Message" value="@(Model.Charges[i].Message)"/>
<input type="hidden" name="command.Transaction[i].Amount" value="@(Model.Charges[i].Amount)"/>
<input type="hidden" name="command.Transaction[i].Reference" value="@(Model.Charges[i].Reference)" />
}
}
}
<table id="Transaction" class="table table-striped table-bordered" width="100%" cellspacing="0" style="display: none;">
<thead>
<tr>
<th>Datum</th>
<th>Status</th>
<th class="amount-col">Msisdn</th>
<th>OrderNo</th>
<th>Netsreferens</th>
<th>Beskrivning</th>
<th class="amount-col">Belopp</th>
@if (Model.AllowRefund)
{
<th>Återköp</th>
}
</tr>
</thead>
<tbody>
@if (Model.Charges != null)
{
for (int i = 0; i < Model.Charges.Count; i++)
{
<tr>
<td class="text-col">@Model.Charges[i].Date</td>
<td>@Model.Charges[i].Status</td>
<td class="amount-col">@Model.Charges[i].Msisdn</td>
<td>@Model.Charges[i].OrderNo</td>
<td>@Model.Charges[i].NetsId</td>
<td>@Model.Charges[i].Message</td>
<td class="amount-col">@Model.Charges[i].Amount</td>
@if (Model.AllowRefund)
{
<td>
@if (Model.Charges[i].Status == "Completed")
{
<a href="/Merchants/Refund?chargeId=@(Model.Charges[i].Reference)"><button type="button" class="m-button m-button-main">Återköp< /button></a>
}
else
{
<div> </div>
}
</td>
}
</tr>
}
}
}
</tbody>
</table>
控制器
public ActionResult ExportTransactions(TransactionsViewModel command)
{
return View();
}
在这个示例中没有显示,但是我使用了一个部分视图来查找transactionstable,并在其周围添加了一个mvc表单标记,以将这些值发布到控制器。我试图使用for循环而不是每个循环,并尝试插入一个Html.editorFor(model =&gt; model.Charges)来获取列表。但每次我将模型发布到控制器时,模型都是EMPTY。有什么建议吗?
答案 0 :(得分:1)
当您提交表单时,它将使用表单内输入控件的值填充请求表单数据。在您的表单中没有输入控件,因此不会发送任何内容。
向服务器发送一个完整的数据列表,你刚才从中获得了很多开销。我只是发回搜索参数,服务器可以再次执行搜索并返回您需要构建的Excel。或者,如果您的搜索速度太慢而无法再次执行,那么在数据库中查找的费用(或发票)的列表就足够了。
在任何情况下,您需要发送回服务器(作为表单参数)必须在表单中。最简单的方法是为需要发回的每个字段添加隐藏输入。在这种情况下,您将发送一个对象数组,因此您必须输入create proper names。
这样的事情可以解决问题:
<强> ExportFiles 强>
<div id="">
@using (Html.BeginForm("ExportTransactions", "Transactions", FormMethod.Post, new {@class = "merchant-form"}))
{
<input type="submit" value="Exportera" class="btn btn-primary"/>
@if (Model.Charges != null)
{
for (int i = 0; i < Model.Charges.Count; i++)
{
<input type="hidden" name="command.Charges[@(i)].Date" value="@Model.Charges[i].Date" />
<input type="hidden" name="command.Charges[@(i)].Status" value="@Model.Charges[i].Status" />
<input type="hidden" name="command.Charges[@(i)].Msisdn" value="@Model.Charges[i].Msisdn" />
<input type="hidden" name="command.Charges[@(i)].OrderNo" value="@Model.Charges[i].OrderNo" />
@* All the other properties of your objects that you need to send to the server on post. You get the idea... *@
}
}
}
<table id="Transaction" class="table table-striped table-bordered" width="100%" cellspacing="0" style="display: none;">
<thead>
<tr>
<th>Datum</th>
<th>Status</th>
<th class="amount-col">Msisdn</th>
<th>OrderNo</th>
<th>Netsreferens</th>
<th>Beskrivning</th>
<th class="amount-col">Belopp</th>
@if (Model.AllowRefund)
{
<th>Återköp</th>
}
</tr>
</thead>
<tbody>
@if (Model.Charges != null)
{
for (int i = 0; i < Model.Charges.Count; i++)
{
<tr>
<td class="text-col">@Model.Charges[i].Date</td>
<td>@Model.Charges[i].Status</td>
<td class="amount-col">@Model.Charges[i].Msisdn</td>
<td>@Model.Charges[i].OrderNo</td>
<td>@Model.Charges[i].NetsId</td>
<td>@Model.Charges[i].Message</td>
<td class="amount-col">@Model.Charges[i].Amount</td>
@if (Model.AllowRefund)
{
<td>
@if (Model.Charges[i].Status == "Completed")
{
<a href="/Merchants/Refund?chargeId=@(Model.Charges[i].Reference)"><button type="button" class="m-button m-button-main">Återköp< /button></a>
}
else
{
<div> </div>
}
</td>
}
</tr>
}
}
}
</tbody>
</table>
显示数据的表与将发布到服务器的表单无关,因此在它之外完全没问题。
请记住,隐藏的输入只是隐藏在用户输入的输入,但它们不是只读的,因此任何具有足够知识的用户都可以在发送到服务器之前更改它们,并且您将生成包含不正确数据的Excel。因此,我强烈建议您在创建Excel之前使用原始参数再次执行搜索。