System.ComponentModel.DataAnnotations中的displayAttribute具有GroupName属性,该属性允许您在UI控件(例如
WPF / WinForms中的属性网格)中将字段逻辑分组在一起.
我试图在ASP.NET MVC3应用程序中访问此元数据,主要是为了创建属性网格.如果我的模型看起来像这样:
public class Customer { [ReadOnly] public int Id { get;set; } [display(Name = "Name",Description = "Customer's name",GroupName = "Basic")] [required(ErrorMessage = "Please enter the customer's name")] [StringLength(255)] public string Name { get;set; } [display(Name = "Email",Description = "Customer's primary email address",GroupName = "Basic")] [required] [StringLength(255)] [DataType(DataType.Email)] public string EmailAddress { get;set; } [display(Name = "Last Order",Description = "The date when the customer last placed an order",GroupName = "Status")] public DateTime LastOrderPlaced { get;set; } [display(Name = "Locked",Description = "Whether the customer account is locked",GroupName = "Status")] public bool IsLocked { get;set; } }
我的观点看起来像这样:
@model Customer <div class="edit-customer"> @foreach (var property in ViewData.ModelMetadata.Properties.Where(p => !p.IsReadOnly).OrderBy(p => p.Order)) { <div class="editor-row"> @Html.DevExpress().Label(settings => { settings.AssociatedControlName = property.PropertyName; settings.Text = property.displayName; settings.ToolTip = property.Description; }).GetHtml() <span class="editor-field"> @Html.DevExpress().TextBox(settings => { settings.Name = property.PropertyName; settings.Properties.NullText = property.Watermark; settings.Width = 200; settings.Properties.ValidationSettings.requiredField.Isrequired = property.Isrequired; settings.ShowModelErrors = true; }).Bind(ViewData[property.PropertyName]).GetHtml() </span> </div> } </div>
然后根据元数据很好地布置表单,标签,工具提示,水印等都从模型的元数据中拉出;但是,我希望能够将这些项目组合在一起,例如在< fieldset>中.每组.有没有人知道如何从元数据中获取GroupName,而不是为ModelMetadata编写扩展方法?