验证如果函数是可组合的，则它也没有副作用。
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 FunctionImportComposableFunctionImportCannotBeSideEffecting As ValidationRule(Of IEdmFunctionImport)
用法
Dim value As ValidationRule(Of IEdmFunctionImport)
value = ValidationRules.FunctionImportComposableFunctionImportCannotBeSideEffecting
public static readonly ValidationRule<IEdmFunctionImport> FunctionImportComposableFunctionImportCannotBeSideEffecting
public:
static initonly ValidationRule<IEdmFunctionImport^>^ FunctionImportComposableFunctionImportCannotBeSideEffecting
static val FunctionImportComposableFunctionImportCannotBeSideEffecting: ValidationRule<IEdmFunctionImport>
public static final var FunctionImportComposableFunctionImportCannotBeSideEffecting : ValidationRule<IEdmFunctionImport>