在asp.net mvc 5中进行复选框列表自定义验证
我正在开发一个ASP.NETMVC5Web应用程序,在对复选框列表进行自定义验证时遇到了一些困难。验证我需要至少选中一个复选框 我的视图模型在asp.net mvc 5中进行复选框列表自定义验证,asp.net,asp.net-mvc,validation,asp.net-mvc-5,Asp.net,Asp.net Mvc,Validation,Asp.net Mvc 5,我正在开发一个ASP.NETMVC5Web应用程序,在对复选框列表进行自定义验证时遇到了一些困难。验证我需要至少选中一个复选框 我的视图模型 public class EditUtilisateurViewModel { public long Id { get; set; } [Required(AllowEmptyStrings = false, ErrorMessage = " Required ")] [Display(Name = "Login")] public string Us
public class EditUtilisateurViewModel
{
public long Id { get; set; }
[Required(AllowEmptyStrings = false, ErrorMessage = " Required ")]
[Display(Name = "Login")]
public string UserName { get; set; }
[Required(AllowEmptyStrings = false, ErrorMessage = "Required")]
[Display(Name = "Email")]
[EmailAddress (ErrorMessage = "Invalid Email")]
public string Email { get; set; }
[CheckOneSelected(ErrorMessage = "Please select role")]
public IEnumerable<System.Web.Mvc.SelectListItem> RolesList { get; set; }
}
公共类EditUsiateUrViewModel
{
公共长Id{get;set;}
[必需(AllowEmptyStrings=false,ErrorMessage=“必需”)]
[显示(Name=“登录”)]
公共字符串用户名{get;set;}
[必需(AllowEmptyStrings=false,ErrorMessage=“必需”)]
[显示(Name=“电子邮件”)]
[电子邮件地址(ErrorMessage=“无效电子邮件”)]
公共字符串电子邮件{get;set;}
[选中复选框(ErrorMessage=“请选择角色”)]
公共IEnumerable角色列表{get;set;}
}
我的控制器
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Edit([Bind(Include = "Id,UserName,Email")] EditUtilisateurViewModel editUser, params string[] selectedRole)
{
if (ModelState.IsValid)
{
// ToDo ...
return RedirectToAction("Index");
}
}
[HttpPost]
[ValidateAntiForgeryToken]
公共异步任务编辑([Bind(Include=“Id,UserName,Email”)]editUsitateUrViewModel editUser,参数字符串[]selectedRole)
{
if(ModelState.IsValid)
{
//待办事项。。。
返回操作(“索引”);
}
}
我的看法
@model MyProject.Areas.Admin.Models.EditUtilisateurViewModel
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)
@Html.HiddenFor(m => m.Id)
<table
<tbody>
< >
<th>
@Html.LabelFor(m => m.UserName)
</th>
<td>
@Html.TextBoxFor(m => m.UserName)
@Html.ValidationMessageFor(m => m.UserName)
</td>
</tr>
<tr>
<th>
@Html.LabelFor(m => m.Email)
</th>
<td>
@Html.TextBoxFor(m => m.Email, new { @class = "form-control", @disabled = "disabled" })
@*@Html.ValidationMessageFor(m => m.Email)*@
</td>
</tr>
<tr>
<th>@Html.Label("Roles")</th>
<td>
<span>
@foreach (var item in Model.RolesList)
{
@*<input type="checkbox" id="@item.Value" name="SelectedRole" value="@item.Value" checked="@item.Selected" class="checkbox-inline" />*@
@Html.CheckBoxFor(m => item.Selected, new { id = item.Value, @Value = item.Value, @Name = "selectedRole[]", @class = "checkbox-inline", data_val = "true", data_val_verifListe = " Select field " })
@Html.Label(item.Value, new { @class = "checkbox-inline-label" })
}
</span>
@Html.ValidationMessageFor(m => m.RolesList)
</td>
</tr>
</tbody>
</table>
<p>
<input type="submit" value="Update" />
</p>
}
@model MyProject.Areas.Admin.Models.editUsitateUrViewModel
@使用(Html.BeginForm())
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)
@Html.HiddenFor(m=>m.Id)
@LabelFor(m=>m.UserName)
@Html.TextBoxFor(m=>m.UserName)
@Html.ValidationMessageFor(m=>m.UserName)
@LabelFor(m=>m.Email)
@TextBoxFor(m=>m.Email,新的{@class=“form control”,@disabled=“disabled”})
@*@Html.ValidationMessageFor(m=>m.Email)*@
@Html.Label(“角色”)
@foreach(Model.RolesList中的var项)
{
@**@
@Html.CheckBoxFor(m=>item.Selected,new{id=item.Value,@Value=item.Value,@Name=“selectedRole[]”,@class=“checkbox内联”,data\u val=“true”,data\u val\u verifListe=“Select field”})
@Label(item.Value,新的{@class=“checkbox inline Label”})
}
@Html.ValidationMessageFor(m=>m.RolesList)
}
我尝试了下面的验证,但没有成功
namespace ...
{
public class CheckOneSelectedAttribute : ValidationAttribute, IClientValidatable
{
public string[] SelectedRole { get; private set; }
public CheckOneSelectedAttribute(string SelectedValue) : base("Select field")
{
if (SelectedValue != null && SelectedValue.Length > 0)
SelectedRole = SelectedValue;
}
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
if (value != null)
{
if (selectedRole != null)
{
if (selectedRole.Length == 0)
{
return new ValidationResult("Select field ");
}
}
}
else
{
return new ValidationResult("Null parameter");
}
return ValidationResult.Success;
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
{
yield return new ModelClientValidationRule()
{
ErrorMessage = ErrorMessageString,
ValidationType = "CheckOneSelected"
};
}
}
}
名称空间。。。
{
公共类CheckOneSelectedAttribute:ValidationAttribute,IClientValidable
{
公共字符串[]SelectedRole{get;private set;}
public CheckOneSelectedAttribute(字符串SelectedValue):基本(“选择字段”)
{
if(SelectedValue!=null&&SelectedValue.Length>0)
SelectedRole=SelectedValue;
}
受保护的重写ValidationResult有效(对象值,ValidationContext ValidationContext)
{
if(值!=null)
{
if(selectedRole!=null)
{
if(selectedRole.Length==0)
{
返回新的ValidationResult(“选择字段”);
}
}
}
其他的
{
返回新的ValidationResult(“空参数”);
}
返回ValidationResult.Success;
}
公共IEnumerable GetClientValidationRules(ModelMetadata元数据、ControllerContext上下文)
{
返回新的ModelClientValidationRule()
{
ErrorMessage=ErrorMessageString,
ValidationType=“CheckOneSelected”
};
}
}
}
谁能帮帮我吗?
谢谢。在控制器部分的post和takes[]列表中,您应该检查列表的长度,这样您就可以对此进行验证。这是很多代码。您对它有什么问题?始终返回参数的空值。