ModelMetadata在editortemplate在asp.net mvc的复杂类型 [英] ModelMetadata for complex type in editortemplate in asp.net mvc

问题描述

我有一个视图模型，其中包括被声明为类型TestThing的复杂属性：

I have a viewmodel that includes a complex property of type TestThing which is declared as:

public class TestThing
{
        [Display(Name = "String3", Prompt = "String4")]
        public string Test1 { get; set; }

        [Display(Name = "String5", Prompt = "String6")]
        public string Test2 { get; set; }
}

我有这种类型中，我想是能够访问的元数据的每个子属性的EditorTemplate。如果模板是的字符串，例如，我可以通过使用 @ ViewData.ModelMetadata.Watermark 访问的提示短信，但由于它是一个复杂的类型，我不能用这个方法。

I have an EditorTemplate for this type in which I would like to be able to access the meta data for each of the child properties. If the template was for a string for example, I could access the Prompt text by using @ViewData.ModelMetadata.Watermark, but because it is a complex type, I cannot use this method.

是否有其他选择吗？

推荐答案

您可以为这样每个属性获取元数据：

You could fetch the metadata for each property like this:

@{
    var metadata = ModelMetadata
        .FromLambdaExpression<TestThing, string>(x => x.Test2, ViewData);
    var watermak = metadata.Watermark;
}

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