对于ASP.NET MVC2应用程序自定义的验证规则 [英] Custom validation rules for ASP.NET MVC2 Application
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问题描述
我试图验证添加到我的应用程序。我有一些规则，我需要使信息被写入到数据库中之前要检查。我有基本的数据验证添加到模型中，但我也需要确保，如果一个领域具有一定的价值，需要此另一场。曾经有一段时间在 asp.net中的NerdDinner教程覆盖了，我用在过去进行验证，但现在我找不到或任何其他实施例。这里是我的模型：
公共类DayRequested
{
公众诠释的requestId {设置;得到; }
[必填，显示名称（离开日期）]
公共字符串DateOfLeave {搞定;组; }
[必填，显示名称（休假时间）
公共字符串TimeOfLeave {搞定;组; }
[必填，显示名称（时间要求）]
[范围（0.5，24，的ErrorMessage =请求的时间必须在1天内）]
公共双HoursRequested {搞定;组; }
[必填，显示名称（请求类型）]
公共字符串的RequestType {搞定;组; }
[DisplayName的（指定关系）]
公共字符串关系{搞定;组; }
[显示名称（疾病的性质）]
公共字符串NatureOfIllness {搞定;组; }
公共BOOL AddedToTimesheet {搞定;组; } 公共BOOL的IsValid
{
{返回（GetRuleViolations（）计数（）== 0）; }
} 公共IEnumerable的＆LT; RuleViolation＆GT; GetRuleViolations（）
{
如果（String.IsNullOrEmpty（DateOfLeave））
产量返回新RuleViolation（假期所需的日期，DateOfLeave）;
如果（String.IsNullOrEmpty（TimeOfLeave））
产量返回新RuleViolation（TimeOfLeave，请假要求日期）;
如果（（HoursRequested小于0.5）||（HoursRequested＆GT; 24））
产量返回新RuleViolation（时间必须是在一个时期一天，HoursRequested）;
如果（String.IsNullOrEmpty（请求类型））
产量返回新RuleViolation（请求类型是必需的，请求类型）;
如果（（String.IsNullOrEmpty（NatureOfIllness））及！及（NatureOfIllness.Length 3;））
产量返回新RuleViolation（疾病的性质必须是长2个字符，NatureOfIllness）; //先进的数据验证，以确保规则得到遵守
LeaveRequestRepository LRR =新LeaveRequestRepository（）;
清单＆LT; LeaveRequestType＆GT; LRT = lrr.GetAllLeaveRequestTypes（）;
LeaveRequestType workingType = lrt.Find（B = GT; b.Id == Convert.ToInt32（请求类型））; 如果（（String.IsNullOrEmpty（关系））及及（workingType.HasRelationship））
产量返回新RuleViolation（关系是必需的，关系）;
如果（（String.IsNullOrEmpty（NatureOfIllness））及及（workingType.HasNatureOfIllness））
产量返回新RuleViolation（疾病的自然是必需的，NatureOfIllness）; 产生中断;
}
}
我的控制器：
//
// POST：/ LeaveRequest /创建
[授权，HttpPost]
公众的ActionResult创建（LeaveRequest leaveRequest，列表与LT; DayRequested＆GT; requestedDays）
{
如果（ModelState.IsValid）
{
的foreach（DayRequested requestedDay在requestedDays）
{
requestedDay.RequestId = leaveRequest.RequestId;
requestedDay.NatureOfIllness =（String.IsNullOrEmpty（requestedDay.NatureOfIllness）：requestedDay.NatureOfIllness？）;
requestedDay.Relationship =（String.IsNullOrEmpty（requestedDay.Relationship）：requestedDay.Relationship？）; 如果（requestedDay.IsValid）
lrRepository.CreateNewLeaveRequestDate（requestedDay）;
其他
返回查看（新LeaveRequestViewModel（leaveRequest，requestedDays，lrRepository.GetLeaveRequestTypes（）））;
} 如果（leaveRequest.IsValid）
lrRepository.CreateNewLeaveRequest（leaveRequest）;
其他
返回查看（新LeaveRequestViewModel（leaveRequest，requestedDays，lrRepository.GetLeaveRequestTypes（）））;
}
其他
返回查看（新LeaveRequestViewModel（leaveRequest，requestedDays，lrRepository.GetLeaveRequestTypes（）））; 返回RedirectToAction（指数，lrRepository.GetLeaveRequests（udh.employeeId））;
}
ModelState.IsValid 虽然在code 的IsValid 运行，并不会返回未设置为false一个 RuleViolation 。所以我手动检查的IsValid 返回假。当我回看，错误信息不会出现。什么可能我会丢失？这里的一些看法片段。
Create.aspx
＆LT; ASP：内容ID =内容2ContentPlaceHolderID =日程地址搜索Maincontent=服务器＆GT;
＆LT; H2＆GT;新建请假申请＆LT; / H＆GT;
＆LT; DIV＆GT;＆LT;％= Html.ActionLink（返回目录，索引）％GT;＆LT; / DIV＆GT;
＆LT;％= Html.Partial（RequestEditor模型）％GT;
＆LT; DIV＆GT;＆LT;％= Html.ActionLink（返回目录，索引）％GT;＆LT; / DIV＆GT;
＆LT; / ASP：内容＆GT;
RequestEditor.ascx
＆LT;使用％（Html.BeginForm（））{％GT;
＆LT;％= Html.ValidationSummary（真）％GT;
＆LT;表ID =editorRows＆GT;
＆LT;％的foreach（在Model.DaysRequested VAR项）
Html.RenderPartial（RequestedDayRow，新EmployeePayroll.ViewModels.LeaveRequestRow（项目，Model.LeaveRequestType））; ％GT;
＆LT; /表＆gt;
＆LT; P＆GT;输入你的时间来签署您的要求与LT; / P＆GT;
＆所述p为H.;＆下;％= Html.LabelFor（型号= GT; model.LeaveRequest.EmployeeSignature）％计算值：
＆LT;％= Html.TextBoxFor（型号=＆GT; model.LeaveRequest.EmployeeSignature，新{类=所需的}）％GT;
＆LT;％= Html.ValidationMessageFor（型号=＆GT; model.LeaveRequest.EmployeeSignature）％GT;＆LT; / P＆GT;
＆LT; P＆GT;＆LT;输入类型=提交值=提交申请/＆GT;＆LT; / P＆GT;
＆LT;％}％GT;
RequestedDayRow.ascx
＆LT; TBODY类=editorRow＆GT;
＆所述; TR类=ROW1＆GT;＆下; / TR＆GT;
＆LT; TR类=ROW2＆GT;
＆LT; TD合并单元格=2级=关系＆GT;
＆LT;％= Html.LabelFor（型号=＆GT; model.DayRequested.Relationship）％计算值：
＆LT;％= Html.TextBoxFor（型号=＆GT; model.DayRequested.Relationship）％GT;
＆LT;％= Html.ValidationMessageFor（型号=＆GT; model.DayRequested.Relationship）％GT;
＆LT; / TD＆GT;
＆LT; TD合并单元格=2级=natureOfIllness＆GT;
＆LT;％= Html.LabelFor（型号=＆GT; model.DayRequested.NatureOfIllness）％计算值：
＆LT;％= Html.TextBoxFor（型号=＆GT; model.DayRequested.NatureOfIllness）％GT;
＆LT;％= Html.ValidationMessageFor（型号=＆GT; model.DayRequested.NatureOfIllness）％GT;
＆LT; / TD＆GT;
＆LT; TD＆GT;＆LT; / TD＆GT;
＆LT; / TR＆GT;
＆LT; / TBODY＆GT;
解决方案
这很简单 - 你只需要您的验证属性适用于整个模型（或子类）。然后验证属性获取到模型而不是一个属性的引用，你可以在多个属性执行的检查。
I am attempting to add validation to my application. I have some rules I need to check before allowing the information to be written to the database. I have the basic data validation added to the model, but I also need to make sure that if one field has a certain value, this other field is required. At one time the NerdDinner tutorial at asp.net covered that and I used that in the past for validation, but now I can't find that or any other example. Here is my model:
public class DayRequested
{
public int RequestId { set; get; }
[Required, DisplayName("Date of Leave")]
public string DateOfLeave { get; set; }
[Required, DisplayName("Time of Leave")]
public string TimeOfLeave { get; set; }
[Required, DisplayName("Hours Requested")]
[Range(0.5, 24, ErrorMessage = "Requested Hours must be within 1 day")]
public double HoursRequested { get; set; }
[Required, DisplayName("Request Type")]
public string RequestType { get; set; }
[DisplayName("Specify Relationship")]
public string Relationship { get; set; }
[DisplayName("Nature of Illness")]
public string NatureOfIllness { get; set; }
public bool AddedToTimesheet { get; set; }
public bool IsValid
{
get { return (GetRuleViolations().Count() == 0); }
}
public IEnumerable<RuleViolation> GetRuleViolations()
{
if (String.IsNullOrEmpty(DateOfLeave))
yield return new RuleViolation("Date of Leave Required", "DateOfLeave");
if (String.IsNullOrEmpty(TimeOfLeave))
yield return new RuleViolation("Date of Leave Required", "TimeOfLeave");
if ((HoursRequested < 0.5) || (HoursRequested > 24))
yield return new RuleViolation("Hours must be in a period of one day", "HoursRequested");
if (String.IsNullOrEmpty(RequestType))
yield return new RuleViolation("Request Type is required", "RequestType");
if ((!String.IsNullOrEmpty(NatureOfIllness)) && (NatureOfIllness.Length < 3))
yield return new RuleViolation("Nature of Illness must be longer 2 characters", "NatureOfIllness");
// Advanced data validation to make sure rules are followed
LeaveRequestRepository lrr = new LeaveRequestRepository();
List<LeaveRequestType> lrt = lrr.GetAllLeaveRequestTypes();
LeaveRequestType workingType = lrt.Find(b => b.Id == Convert.ToInt32(RequestType));
if ((String.IsNullOrEmpty(Relationship)) && (workingType.HasRelationship))
yield return new RuleViolation("Relationship is Required", "Relationship");
if ((String.IsNullOrEmpty(NatureOfIllness)) && (workingType.HasNatureOfIllness))
yield return new RuleViolation("Nature of Illness is Required", "NatureOfIllness");
yield break;
}
}
My controller:
//
// POST: /LeaveRequest/Create
[Authorize, HttpPost]
public ActionResult Create(LeaveRequest leaveRequest, List<DayRequested> requestedDays)
{
if (ModelState.IsValid)
{
foreach (DayRequested requestedDay in requestedDays)
{
requestedDay.RequestId = leaveRequest.RequestId;
requestedDay.NatureOfIllness = (String.IsNullOrEmpty(requestedDay.NatureOfIllness) ? "" : requestedDay.NatureOfIllness);
requestedDay.Relationship = (String.IsNullOrEmpty(requestedDay.Relationship) ? "" : requestedDay.Relationship);
if (requestedDay.IsValid)
lrRepository.CreateNewLeaveRequestDate(requestedDay);
else
return View(new LeaveRequestViewModel(leaveRequest, requestedDays, lrRepository.GetLeaveRequestTypes()));
}
if (leaveRequest.IsValid)
lrRepository.CreateNewLeaveRequest(leaveRequest);
else
return View(new LeaveRequestViewModel(leaveRequest, requestedDays, lrRepository.GetLeaveRequestTypes()));
}
else
return View(new LeaveRequestViewModel(leaveRequest, requestedDays, lrRepository.GetLeaveRequestTypes()));
return RedirectToAction("Index", lrRepository.GetLeaveRequests(udh.employeeId));
}
ModelState.IsValid is not set to false though the code in IsValid is run and does return a RuleViolation. So I manually check IsValid it returns false. When I return to the view, the error messages do not appear. What might I be missing? Here are some snippets of the views.
Create.aspx
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2>Create New Leave Request</h2>
<div><%= Html.ActionLink("Back to List", "Index") %></div>
<%= Html.Partial("RequestEditor", Model) %>
<div><%= Html.ActionLink("Back to List", "Index") %></div>
</asp:Content>
RequestEditor.ascx
<% using (Html.BeginForm()) {%>
<%= Html.ValidationSummary(true) %>
<table id="editorRows">
<% foreach (var item in Model.DaysRequested)
Html.RenderPartial("RequestedDayRow", new EmployeePayroll.ViewModels.LeaveRequestRow(item, Model.LeaveRequestType)); %>
</table>
<p>Type your time to sign your request.</p>
<p><%= Html.LabelFor(model => model.LeaveRequest.EmployeeSignature) %>:
<%= Html.TextBoxFor(model => model.LeaveRequest.EmployeeSignature, new { Class="required" })%>
<%= Html.ValidationMessageFor(model => model.LeaveRequest.EmployeeSignature)%></p>
<p><input type="submit" value="Submit Request" /></p>
<% } %>
RequestedDayRow.ascx
<tbody class="editorRow">
<tr class="row1"></tr>
<tr class="row2">
<td colspan="2" class="relationship">
<%= Html.LabelFor(model => model.DayRequested.Relationship)%>:
<%= Html.TextBoxFor(model => model.DayRequested.Relationship) %>
<%= Html.ValidationMessageFor(model => model.DayRequested.Relationship)%>
</td>
<td colspan="2" class="natureOfIllness">
<%= Html.LabelFor(model => model.DayRequested.NatureOfIllness)%>:
<%= Html.TextBoxFor(model => model.DayRequested.NatureOfIllness) %>
<%= Html.ValidationMessageFor(model => model.DayRequested.NatureOfIllness)%>
</td>
<td></td>
</tr>
</tbody>
解决方案
It's quite simple - you just need to apply your validation attribute to the entire model (or a child class). Then the validation attribute gets a reference to the model instead of just one property and you can perform your checks on multiple properties.
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