Question

当我向Customer/Edit/id页进行请求时，出现以下错误

System.FormatException：'输入字符串的格式不正确。'

我被困在这里，你能帮我吗？

模型

public class CustomerModel
{
    [Required(ErrorMessage = "{0} alanı boş geçilemez!")]
    [DisplayName("Doğum Tarihi")]
    [DisplayFormat(DataFormatString = "{0dd/MM/yyyy}", ApplyFormatInEditMode = true)]
    public DateTime DateOfBirth { get; set; }
}

查看

<div class="form-group row">
    @Html.LabelFor(model => model.DateOfBirth, htmlAttributes: new {@class = "col-md-2 col-form-label" })
    <div class="col-md-10">
        @Html.EditorFor(model => model.DateOfBirth, new { htmlAttributes = new { @class = "form-control datepicker" } })
        @Html.ValidationMessageFor(model => model.DateOfBirth, "", new { @class = "text-danger" })  
    </div>
</div>

控制器

public ActionResult Edit(int id)
{
    var customer = _customerService.GetCustomerById(id);

    if (customer == null || customer.Deleted)
        return RedirectToAction("List");

    var model = new CustomerModel()
    {
        DateOfBirth = customer.DateOfBirth,
    };

    return View(model);
}

[HttpPost]
public ActionResult Edit(CustomerModel model)
{
    if (ModelState.IsValid)
    {
        var customer = _customerService.GetCustomerById(model.Id);

        if (customer == null || customer.Deleted)
            return RedirectToAction("List");

        customer.DateOfBirth = model.DateOfBirth;

        _customerService.UpdateCustomer(customer);
    }

    return RedirectToAction("List");
}

Answer 1

我想您将id作为整数传递，在任何情况下ID都将为空或字符串，请检查。我希望这会有所帮助。

如何修复System.FormatException：'输入字符串的格式不正确。

1 个答案: