你想知道,如果在任何一个组件的组件是给定类型的?
var webType = ComponentType.WebApplication;
IEnumerable<Component> webApps = from c in components
from innerComp in c.Components
where innerComp.Type == webType;
bool anyWebApp = webApps.Any();
什么innercomp.components?
编辑:所以,你想找到递归不仅在顶部或第二级给定类型的组件。然后你可以使用以下Traverse
扩展方法:
public static IEnumerable<T> Traverse<T>(this IEnumerable<T> source, Func<T, IEnumerable<T>> fnRecurse)
{
foreach (T item in source)
{
yield return item;
IEnumerable<T> seqRecurse = fnRecurse(item);
if (seqRecurse != null)
{
foreach (T itemRecurse in Traverse(seqRecurse, fnRecurse))
{
yield return itemRecurse;
}
}
}
}
以这种方式使用:
var webType = ComponentType.WebApplication;
IEnumerable<Component> webApps = components.Traverse(c => c.Components)
.Where(c => c.Type == webType);
bool anyWebApp = webApps.Any();
样本数据:
var components = new List<Component>() {
new Component(){ Type=ComponentType.WebService,Components=null },
new Component(){ Type=ComponentType.WebService,Components=new List<Component>(){
new Component(){ Type=ComponentType.WebService,Components=null },
new Component(){ Type=ComponentType.ComponentGroup,Components=null },
new Component(){ Type=ComponentType.WindowsService,Components=null },
} },
new Component(){ Type=ComponentType.WebService,Components=null },
new Component(){ Type=ComponentType.WebService,Components=new List<Component>(){
new Component(){ Type=ComponentType.WebService,Components=new List<Component>(){
new Component(){Type=ComponentType.WebApplication,Components=null}
} },
new Component(){ Type=ComponentType.WindowsService,Components=null },
new Component(){ Type=ComponentType.WebService,Components=null },
} },
new Component(){ Type=ComponentType.WebService,Components=null },
new Component(){ Type=ComponentType.ComponentGroup,Components=null },
new Component(){ Type=ComponentType.WebService,Components=null },
};
innercomp.components呢? –
@IrrationalRationalWorks:编辑我的答案。 –
我正在吃彩虹...让我检查 –