Question

我在当前的MVC3项目中为我的一个模型创建了一个编辑器模板。这个模型正在为底层模式的属性调用正确的编辑器，但它们缺少用于验证的不显眼的data-val- *属性。

如何让MVC发出data-val属性？

这是我的模特

[MetadataType(typeof(FieldTripRouteMetadata))]
public partial class FieldTripRoute
{
    private class FieldTripRouteMetadata
    {
        [Required]
        [DisplayFormat(DataFormatString = "{0:d}")]
        public DateTime Date { get; set; }

        [Required]
        [DisplayName("Route")]
        public int RouteID { get; set; }

        [Required]            
        [DisplayName("Departure Time")]
        [UIHint("TimeWithPeriod")]
        [DisplayFormat(DataFormatString = "{0:h:mm tt}")]
        public DateTime DepartureTime { get; set; }

        [Required]
        [StringLength(255)]
        [DisplayName("Pickup Location")] 
        public String PickupLocation { get; set; }

        [Required]
        [StringLength(255)]
        public String Destination { get; set; }

        [Required]            
        [DisplayName("Arrival Time")]
        [UIHint("TimeWithPeriod")]
        [DisplayFormat(DataFormatString = "{0:h:mm t}")]
        public DateTime ArrivalTime { get; set; }

        public bool IsReturnRoute { get; set; }

        public int FieldTripID { get; set; }
    }

和我的编辑模板：

@model FieldTripRoute

@{string routeType = (Model.IsReturnRoute ? "return" : "");}

<fieldset class="add@(routeType)Route" style="clear: both; width: 620px; margin-right: auto; margin-left: auto;">
    <legend>Add Route</legend>
    <div style="float: left; width: 275px;">
        <div>
            <div class="editor-label">@Html.LabelFor(model => model.Date)</div>
            <div class="editor-field">@Html.EditorFor(model => model.Date)</div>
            <div class="validation-error">@Html.ValidationMessageFor(model => model.Date)</div>
        </div>
        <div>
            <div class="editor-label">@Html.LabelFor(model => model.DepartureTime)</div>
            <div class="editor-field">@Html.EditorFor(model => model.DepartureTime)</div>
            <div class="validation-error">@Html.ValidationMessageFor(model => model.DepartureTime)</div>
        </div>
        <div>
            <div class="editor-label">@Html.LabelFor(model => model.ArrivalTime)</div>
            <div class="editor-field">@Html.EditorFor(model => model.ArrivalTime)</div>
            <div class="validation-error">@Html.ValidationMessageFor(model => model.ArrivalTime)</div>
        </div>
    </div>
    <div style="float: left;">
        <div>
            <div class="editor-label">@Html.LabelFor(model => model.RouteID)</div>
            <div class="editor-field">@Html.DropDownListFor(model => model.RouteID, Model.EditRouteList)</div>
            <div class="validation-error">@Html.ValidationMessageFor(model => model.RouteID)</div>
        </div>
        <div>
            <div class="editor-label">@Html.LabelFor(model => model.PickupLocation)</div>
            <div class="editor-field">@Html.TextBoxFor(model => model.PickupLocation)</div>
            <div class="validation-error">@Html.ValidationMessageFor(model => model.PickupLocation)</div>
        </div>
        <div>
            <div class="editor-label">@Html.LabelFor(model => model.Destination)</div>
            <div class="editor-field">@Html.EditorFor(model => model.Destination)</div>
            <div class="validation-error">@Html.ValidationMessageFor(model => model.Destination)</div>
        </div>          
    </div>        
    <div style="clear: both; width: 100px; margin: 20px auto 0 auto;">
        <input type="button" id="submit@(routeType)Form" name="submit@(routeType)Form" value="Add" />
    </div>
</fieldset>

我的viewModel：

public class FieldTripEditViewModel
{
    public FieldTrip Trip { get; set; }        
    public FieldTripRoute Route { get; set; }        
    public FieldTripRoute ReturnRoute { get; set; }

    public FieldTripEditViewModel(){}

    public FieldTripEditViewModel(FieldTrip trip)
    {
        this.Trip = trip;
        this.Route = new FieldTripRoute();
        this.ReturnRoute = new FieldTripRoute {IsReturnRoute = true};
    }
}

我查看了this post，我的所有基本编辑器模板都对应于将名称保留为空字符串以允许MVC生成它的想法。但我仍然没有验证。

Answer 1

我能够通过在编辑器模板之前和之后添加表单标记并在编辑模板的开头添加this.ViewContext.FormContext = new FormContext();来使其正常运行。

似乎当控件传递给编辑器模板时，它会丢失当前的表单上下文。我尝试添加ViewContext.FormContext命令，但没有添加表单标记，嵌入式模型将无法验证。

所以现在我在表单中有一个表单，它按预期工作，但似乎应该有一个更简单的方法。

formContext命令的想法来自here

MVC3 data-val- *属性不是从模型编辑器模板发出的

1 个答案: