在linq的where where方法中使用多个条件

Question

我有一行代码使用:

codebase.Methods.Where(x => x.Body.Scopes.Count > 5);

如何插入多个条件？所以我可以说x => predicate && y => predicate？

谢谢

Answer 1

如果您愿意,可以将单独的条件转换为单个谓词:

codebase.Methods.Where(x => (x.Body.Scopes.Count > 5) && (x.Foo == "test"));

或者您可以Where为每个条件使用单独的调用:

codebase.Methods.Where(x => x.Body.Scopes.Count > 5)
                .Where(x => x.Foo == "test");

Answer 2

不,你不能在同一个地方定义2个代表,但你可以在彼此之后建立或者将两者放在相同的条件下

 var result = codebase.Methods.Where(x => x.Body.Scopes.Count > 5 && x.Body.Scopes.name == "" );

or 

 var result = codebase.Methods.Where(x => x.Body.Scopes.Count > 5 )
        .where( y=> y.Body.Scopes.name == '' );

or 

 var result = codebase.Methods.Where(x => x.Body.Scopes.Count > 5  )
.Union( codebase.Methods.Where(y => y.Body.Scopes.name == ''  ) );