コンポーネント内のいずれかのコンポーネントが特定のタイプであるかどうかを知りたいですか?
var webType = ComponentType.WebApplication;
IEnumerable<Component> webApps = from c in components
from innerComp in c.Components
where innerComp.Type == webType;
bool anyWebApp = webApps.Any();
innercomp.components はどうですか?
編集:したがって、最上位または2番目のレベルだけでなく、特定のタイプのコンポーネントを再帰的に検索する必要があります。Traverse
次に、次の拡張メソッドを使用できます。
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;
}
}
}
}
次のように使用します。
var webType = ComponentType.WebApplication;
IEnumerable<Component> webApps = components.Traverse(c => c.Components)
.Where(c => c.Type == webType);
bool anyWebApp = webApps.Any();
サンプルデータ:
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 },
};