编辑:将此问题升级为MVC 2.0
使用asp.net MVC 2.0是否存在创建验证摘要的现有方法,该方法对包含集合的模型有意义?如果没有,我可以创建自己的验证摘要
示例模型:
public class GroupDetailsViewModel
{
public string GroupName { get; set; }
public int NumberOfPeople { get; set; }
public List<Person> People{ get; set; }
}
public class Person
{
[Required(ErrorMessage = "Please enter your Email Address")]
[RegularExpression(@"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$", ErrorMessage = "Please enter a valid Email Address")]
public string EmailAddress { get; set; }
[Required(ErrorMessage = "Please enter your Phone Number")]
public string Phone { get; set; }
[Required(ErrorMessage = "Please enter your First Name")]
public string FirstName { get; set; }
[Required(ErrorMessage = "Please enter your Last Name")]
public string LastName { get; set; }
}
如果未输入任何内容,则现有摘要<%=Html.ValidationSummary %>
将如下所示。
在进行下一步之前,必须纠正以下错误 *请输入您的电子邮件地址
*请输入您的电话号码
*请输入您的名字
*请输入您的姓氏
*请输入您的电子邮件地址
*请输入您的电话号码
*请输入您的名字
*请输入您的姓氏
设计要求插入标题:
在进行下一步之前,必须纠正以下错误 人1 *请输入您的电子邮件地址
*请输入您的电话号码
*请输入您的名字
*请输入您的姓氏
人2
*请输入您的电子邮件地址
*请输入您的电话号码
*请输入您的名字
*请输入您的姓氏
回答根据Pharcyde的回答。
public static MvcHtmlString NestedValidationSummary(this HtmlHelper helper)
{
if (helper.ViewData.ModelState.IsValid)
return MvcHtmlString.Empty;
// create datastructure to group error messages under a given key (blank key is for general errors)
var errors = new Dictionary<string,List<string>>();
foreach (KeyValuePair<string, ModelState> keyPair in helper.ViewData.ModelState)
{
foreach (ModelError error in keyPair.Value.Errors)
{
//determine the 'key' for the group in which this error belongs
var key = keyPair.Key.Split(']')[0];
if (key.Contains("People["))
key = "Person " + key.Split('[')[1];
else
key = string.Empty;
if(!errors.ContainsKey(key))
errors.Add(key,new List<string>());
//now add message using error.ErrorMessage property
errors[key].Add(error.ErrorMessage);
}
}
// generate the HTML
var ul = new TagBuilder("ul");
foreach (KeyValuePair<string, List<string>> errorPair in errors.OrderBy(p=>p.Key))
{
var li = new TagBuilder("li");
if(!string.IsNullOrEmpty(errorPair.Key))
li.InnerHtml += string.Format("<p class=\"no-bottom-margin\"><strong>{0}</strong></p>",errorPair.Key);
var innerUl = new TagBuilder("ul");
foreach (var message in errorPair.Value)
{
var innerLi = new TagBuilder("li");
innerLi.InnerHtml = message;
innerUl.InnerHtml += innerLi.ToString(TagRenderMode.Normal);
}
li.InnerHtml += innerUl.ToString(TagRenderMode.Normal);
ul.InnerHtml += li.ToString(TagRenderMode.Normal);
}
return MvcHtmlString.Create(ul.ToString(TagRenderMode.Normal));
}
答案 0 :(得分:3)
您将不得不扩展HtmlHelper方法并自行滚动。下面是一些代码,这些代码对于您需要一个小组的情况非常重要:
//HtmlHelper being extended
if(helper.ViewData.ModelState.IsValid)
{
foreach(KeyValuePair<string,ModelState> keyPair in helper.ViewData.ModelState)
{
//add division for group by here using keyPair.Key property (would be named "Person" in your case).
foreach(ModelError error in keyPair.Value.Errors)
{
//now add message using error.ErrorMessage property
}
}
}