Asp.net mvc 验证后丢失表单值
使用ViewModel进行验证:Asp.net mvc 验证后丢失表单值,asp.net-mvc,validation,viewmodel,Asp.net Mvc,Validation,Viewmodel,使用ViewModel进行验证: public class CCvm { [Required(ErrorMessage = "Please enter your Name")] public string cardHolderName { get; set; } } 我的控制器在post上调用任务: public async Task<ActionResult> Pay(FormCollection form, CCvm model) { if (!Mode
public class CCvm
{
[Required(ErrorMessage = "Please enter your Name")]
public string cardHolderName { get; set; }
}
我的控制器在post上调用任务:
public async Task<ActionResult> Pay(FormCollection form, CCvm model)
{
if (!ModelState.IsValid)
{
return View(model);
}
}
公共异步任务支付(FormCollection表单,CCvm模型)
{
如果(!ModelState.IsValid)
{
返回视图(模型);
}
}
以及以下观点:
@model GCwholesale.Models.CCvm
@{
Layout = "~/Views/Shared/_HomeSubPageLayout.cshtml";
ViewBag.Title = "Secure Checkout";
}
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="Payment">
<label>Name on Card: </label>
@Html.EditorFor(model => model.cardHolderName, new { htmlAttributes = new { @placeholder = "Cardholder Name Please", @Value = ViewBag.Name } })<br />
@Html.ValidationMessageFor(model => model.cardHolderName)
<button class="submitCheckout">SUBMIT NOW</button>
</div>
}
@model.Models.CCvm
@{
Layout=“~/Views/Shared/_HomeSubPageLayout.cshtml”;
ViewBag.Title=“安全签出”;
}
@使用(Html.BeginForm())
{
@Html.AntiForgeryToken()
卡片上的姓名:
@Html.EditorFor(model=>model.cardename,new{htmlAttributes=new{@placeholder=“cardender Name Please”,@Value=ViewBag.Name})
@Html.ValidationMessageFor(model=>model.name)
立即提交
}
但当验证失败时,表单中的数据就会消失
谢谢你看
@Value = ViewBag.Name
您没有设置ViewBag.Name,因此它没有值,并且会导致输入为空。删除该选项,然后让HtmlHelper根据发布模型中的值进行设置。您不需要在编辑器中设置
@value=ViewBag.Name
@Html.EditorFor(model => model.cardHolderName,
new { htmlAttributes = new { @placeholder = "Cardholder Name Please" } })
public async Task<ActionResult> Pay(CCvm model){
{
//...
}
此外,您不需要FormCollection作为参数,因为您已经有了CCvm模型
@Html.EditorFor(model => model.cardHolderName,
new { htmlAttributes = new { @placeholder = "Cardholder Name Please" } })
public async Task<ActionResult> Pay(CCvm model){
{
//...
}
公共异步任务支付(CCvm模型){
{
//...
}
如果您可以将视图代码添加到问题中,这会有所帮助。我添加了视图代码…..在与html帮助程序绑定时,切勿尝试覆盖值
属性。