Expression.IsTrue 方法

定義

傳回運算式是否評估為 true。Returns whether the expression evaluates to true.

多載

IsTrue(Expression)

傳回運算式是否評估為 true。Returns whether the expression evaluates to true.

IsTrue(Expression, MethodInfo)

傳回運算式是否評估為 true。Returns whether the expression evaluates to true.

IsTrue(Expression)

傳回運算式是否評估為 true。Returns whether the expression evaluates to true.

public:
 static System::Linq::Expressions::UnaryExpression ^ IsTrue(System::Linq::Expressions::Expression ^ expression);
public static System.Linq.Expressions.UnaryExpression IsTrue (System.Linq.Expressions.Expression expression);
static member IsTrue : System.Linq.Expressions.Expression -> System.Linq.Expressions.UnaryExpression
Public Shared Function IsTrue (expression As Expression) As UnaryExpression

參數

expression
Expression

要評估的 ExpressionAn Expression to evaluate.

傳回

UnaryExpression

UnaryExpression 的執行個體。An instance of UnaryExpression.

適用於

IsTrue(Expression, MethodInfo)

傳回運算式是否評估為 true。Returns whether the expression evaluates to true.

public:
 static System::Linq::Expressions::UnaryExpression ^ IsTrue(System::Linq::Expressions::Expression ^ expression, System::Reflection::MethodInfo ^ method);
public static System.Linq.Expressions.UnaryExpression IsTrue (System.Linq.Expressions.Expression expression, System.Reflection.MethodInfo method);
public static System.Linq.Expressions.UnaryExpression IsTrue (System.Linq.Expressions.Expression expression, System.Reflection.MethodInfo? method);
static member IsTrue : System.Linq.Expressions.Expression * System.Reflection.MethodInfo -> System.Linq.Expressions.UnaryExpression
Public Shared Function IsTrue (expression As Expression, method As MethodInfo) As UnaryExpression

參數

expression
Expression

要評估的 ExpressionAn Expression to evaluate.

method
MethodInfo

表示實作方法的 MethodInfoA MethodInfo that represents the implementing method.

傳回

UnaryExpression

UnaryExpression 的執行個體。An instance of UnaryExpression.

適用於