public override Expression <Func <T, bool> > ToExpression()
{
var expression = _specification.ToExpression();
var notExpression = Expression.Not(expression.Body);
return(Expression.Lambda <Func <T, bool> >(notExpression, expression.Parameters.Single()));
}
public override Expression <Func <T, bool> > ToExpression()
{
var leftExpression = _left.ToExpression();
var rightExpression = _right.ToExpression();
var invokedExpression = Expression.Invoke(rightExpression, leftExpression.Parameters);
return((Expression <Func <T, bool> >)Expression.Lambda(Expression.OrElse(leftExpression.Body, invokedExpression), leftExpression.Parameters));
}