[英]asp.net core mvc form viewmodel empty on post
當我單擊按鈕提交表單時,viewModel沒有被綁定。 我不確定這是否與作為數組的模型屬性有關。
調節器
[HttpPost]
public async Task<IActionResult> CommodityAdditionalCodes(CommodityAdditionalCodesViewModel viewModel)
{
//todo code in here which calls webservice
return View(viewModel);
}
視圖模型
public class CommodityAdditionalCodesViewModel
{
public CommodityAdditionalCodeType[] Types { get; set; }
}
視圖
@model Asm.Helios.ToolboxMvc.ViewModels.CommodityAdditionalCodesViewModel
@{
ViewData["Title"] = "CommodityAdditionalCodes";
}
<Section>
<button type="button" id="btnCommit">Commit Changes</button><span id="isDirtyMessage" class="warning" style="display:none">There are unsaved changes, press the commit changes button to save them</span>
</Section>
<form id="frmAdditionalCodes" name="frmAdditionalCodes" method="post" >
<table class="table header-fixed">
<thead>
<tr >
<th>Origin</th>
<th>Description</th>
<th>Valid From</th>
<th>Valid To</th>
<th>Type</th>
<th>Customs Identifier</th>
<th>Actions</th>
</tr>
</thead>
<tbody>
@foreach (var item in Model.Types)
{
<tr>
<td>
<span>@item.Origin</span>
<input type="text" value="@item.Origin" style="display:none"/>
</td>
<td>
<span>@item.Description</span>
<input type="text" value="@item.Description" style="display:none" />
</td>
<td>
<span>@item.ValidFrom</span>
<input type="text" value="@item.ValidFrom" style="display:none" />
</td>
<td>
<span>@item.ValidTo</span>
<input type="text" value="@item.ValidTo" style="display:none" />
</td>
<td>
<span>@item.Type</span>
<input type="text" value="@item.Type" style="display:none" />
</td>
<td>
<span>@item.CustomsIdentifier</span>
<!--<input type="text" value="@item.CustomsIdentifier" style="display:none" />-->
@Html.TextBoxFor(m=>item.CustomsIdentifier, new {@style="display:none"})</td>
<td>
<button type="button" id="deleteItem">Delete</button>
<button type="button" id="editItem">Edit</button>
<button type="button" id="updateItem" style="display:none">Update</button>
<button type="button" id="cancelItem" style="display:none">Cancel</button>
</td>
</tr>
}
</tbody>
</table>
</form>
不要使用foreach
循環,而是使用經典for
和索引模型,例如Model.Types[index]
。
此外,您應該考慮使用標記助手,它使您的Razor代碼更容易閱讀,因為它更接近真正的HTML。
@for (var index = 0; index < Model.Types.Count; index++)
{
<input type="text" asp-for="Model.Types[index].Origin" />
<!-- etc... -->
}
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