驗證結構描述元素若沒有其他錯誤，其類型不能是無。
命名空間： Microsoft.Data.Edm.Validation
組件： Microsoft.Data.Edm (在 Microsoft.Data.Edm.dll 中)
語法
'宣告
Public Shared ReadOnly SchemaElementMustNotHaveKindOfNone As ValidationRule(Of IEdmSchemaElement)
'用途
Dim value As ValidationRule(Of IEdmSchemaElement)
value = ValidationRules.SchemaElementMustNotHaveKindOfNone
public static readonly ValidationRule<IEdmSchemaElement> SchemaElementMustNotHaveKindOfNone
public:
static initonly ValidationRule<IEdmSchemaElement^>^ SchemaElementMustNotHaveKindOfNone
static val SchemaElementMustNotHaveKindOfNone: ValidationRule<IEdmSchemaElement>
public static final var SchemaElementMustNotHaveKindOfNone : ValidationRule<IEdmSchemaElement>