验证类型中没有重复的属性。
命名空间： Microsoft.Data.Edm.Validation
程序集： Microsoft.Data.Edm（在 Microsoft.Data.Edm.dll 中）
语法
声明
Public Shared ReadOnly StructuredTypePropertyNameAlreadyDefined As ValidationRule(Of IEdmStructuredType)
用法
Dim value As ValidationRule(Of IEdmStructuredType)
value = ValidationRules.StructuredTypePropertyNameAlreadyDefined
public static readonly ValidationRule<IEdmStructuredType> StructuredTypePropertyNameAlreadyDefined
public:
static initonly ValidationRule<IEdmStructuredType^>^ StructuredTypePropertyNameAlreadyDefined
static val StructuredTypePropertyNameAlreadyDefined: ValidationRule<IEdmStructuredType>
public static final var StructuredTypePropertyNameAlreadyDefined : ValidationRule<IEdmStructuredType>