Extensions.AncestorsAndSelf Extensions.AncestorsAndSelf Extensions.AncestorsAndSelf Extensions.AncestorsAndSelf Method

定義

ソース コレクション内のすべての要素、およびソース コレクション内のすべての要素の先祖が格納された要素のコレクションを返します。Returns a collection of elements that contains every element in the source collection, and the ancestors of every element in the source collection.

オーバーロード

AncestorsAndSelf(IEnumerable<XElement>) AncestorsAndSelf(IEnumerable<XElement>) AncestorsAndSelf(IEnumerable<XElement>) AncestorsAndSelf(IEnumerable<XElement>)

ソース コレクション内のすべての要素、およびソース コレクション内のすべての要素の先祖が格納された要素のコレクションを返します。Returns a collection of elements that contains every element in the source collection, and the ancestors of every element in the source collection.

AncestorsAndSelf(IEnumerable<XElement>, XName) AncestorsAndSelf(IEnumerable<XElement>, XName) AncestorsAndSelf(IEnumerable<XElement>, XName) AncestorsAndSelf(IEnumerable<XElement>, XName)

ソース コレクション内のすべての要素、およびソース コレクション内のすべての要素の先祖が格納され、フィルター処理された要素のコレクションを返します。Returns a filtered collection of elements that contains every element in the source collection, and the ancestors of every element in the source collection. 一致する XName を持つ要素のみがコレクションに含められます。Only elements that have a matching XName are included in the collection.

注釈

ソース コレクション内の複数のノードがある、同じ祖先、先祖が複数回に含める結果のコレクション。If multiple nodes in the source collection have the same ancestor, the ancestor will be included multiple times in the result collection. これを回避するには、使用、Distinctメソッド。To avoid this, use the Distinct method.

このメソッドは遅延実行を使用します。This method uses deferred execution.

AncestorsAndSelf(IEnumerable<XElement>) AncestorsAndSelf(IEnumerable<XElement>) AncestorsAndSelf(IEnumerable<XElement>) AncestorsAndSelf(IEnumerable<XElement>)

ソース コレクション内のすべての要素、およびソース コレクション内のすべての要素の先祖が格納された要素のコレクションを返します。Returns a collection of elements that contains every element in the source collection, and the ancestors of every element in the source collection.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Collections::Generic::IEnumerable<System::Xml::Linq::XElement ^> ^ AncestorsAndSelf(System::Collections::Generic::IEnumerable<System::Xml::Linq::XElement ^> ^ source);
public static System.Collections.Generic.IEnumerable<System.Xml.Linq.XElement> AncestorsAndSelf (this System.Collections.Generic.IEnumerable<System.Xml.Linq.XElement> source);
static member AncestorsAndSelf : seq<System.Xml.Linq.XElement> -> seq<System.Xml.Linq.XElement>
<Extension()>
Public Function AncestorsAndSelf (source As IEnumerable(Of XElement)) As IEnumerable(Of XElement)

パラメーター

source
IEnumerable<XElement>

ソース コレクションが格納されている IEnumerable<T>XElementAn IEnumerable<T> of XElement that contains the source collection.

戻り値

ソース コレクション内のすべての要素、およびソース コレクション内のすべての要素の先祖が格納された、IEnumerable<T>XElementAn IEnumerable<T> of XElement that contains every element in the source collection, and the ancestors of every element in the source collection.

次の例では、優れた孫要素のコレクションを取得します。The following example retrieves a collection of the great grandchildren elements. この軸メソッドを使用して、すべての先祖および自己のコレクション内のすべての要素を取得します。It then uses this axis method to retrieve all ancestors and self of all elements in the collection.

XElement xmlTree = new XElement("Root",  
    new XElement("Child1",  
        new XElement("GrandChild1",  
            new XElement("GreatGrandChild1", "content")  
        )  
    ),  
    new XElement("Child2",  
        new XElement("GrandChild2",  
            new XElement("GreatGrandChild2", "content")  
        )  
    )  
);  
IEnumerable<XElement> greatGrandChildren =  
    from el in xmlTree.Descendants()  
    where el.Name.LocalName.StartsWith("Great")  
    select el;  

Console.WriteLine("Great Grand Children Elements");  
Console.WriteLine("----");  
foreach (XElement de in greatGrandChildren)  
    Console.WriteLine(de.Name);  

IEnumerable<XElement> allAncestors =  
    from el in greatGrandChildren.AncestorsAndSelf().Distinct()  
    select el;  

Console.WriteLine("");  
Console.WriteLine("Ancestors and Self");  
Console.WriteLine("----");  
foreach (XElement de in allAncestors)  
    Console.WriteLine(de.Name);  
Dim xmlTree As XElement = _   
    <Root>  
        <Child1>  
            <GrandChild1>  
                <GreatGrandChild1>content</GreatGrandChild1>  
            </GrandChild1>  
        </Child1>  
        <Child2>  
            <GrandChild2>  
                <GreatGrandChild2>content</GreatGrandChild2>  
            </GrandChild2>  
        </Child2>  
    </Root>  

Dim greatGrandChildren = From el In xmlTree.Descendants _  
                         Where el.Name.LocalName.StartsWith("Great") _  
                         Select el  

Console.WriteLine("Great Grand Children Elements")  
Console.WriteLine("----")  

For Each de As XElement In greatGrandChildren  
    Console.WriteLine(de.Name)  
Next  

Dim allAncestors = From el In greatGrandChildren.AncestorsAndSelf.Distinct _  
                   Select el  

Console.WriteLine("")  
Console.WriteLine("Ancestors and Self")  
Console.WriteLine("----")  

For Each de As XElement In allAncestors  
    Console.WriteLine(de.Name)  
Next  

この例を実行すると、次の出力が生成されます。This example produces the following output:

Great Grand Children Elements  
----  
GreatGrandChild1  
GreatGrandChild2  

Ancestors and Self  
----  
GreatGrandChild1  
GrandChild1  
Child1  
Root  
GreatGrandChild2  
GrandChild2  
Child2  

同じ例を次に示しますが、ここで XML が名前空間です。The following is the same example, but in this case the XML is in a namespace. 詳細については、次を参照してください。 XML 名前空間の使用します。For more information, see Working with XML Namespaces.

XNamespace aw = "http://www.adventure-works.com";  
XElement xmlTree = new XElement(aw + "Root",  
    new XElement(aw + "Child1",  
        new XElement(aw + "GrandChild1",  
            new XElement(aw + "GreatGrandChild1", "content")  
        )  
    ),  
    new XElement(aw + "Child2",  
        new XElement(aw + "GrandChild2",  
            new XElement(aw + "GreatGrandChild2", "content")  
        )  
    )  
);  
IEnumerable<XElement> greatGrandChildren =  
    from el in xmlTree.Descendants()  
    where el.Name.LocalName.StartsWith("Great")  
    select el;  

Console.WriteLine("Great Grand Children Elements");  
Console.WriteLine("----");  
foreach (XElement de in greatGrandChildren)  
    Console.WriteLine(de.Name);  

IEnumerable<XElement> allAncestors =  
    from el in greatGrandChildren.AncestorsAndSelf().Distinct()  
    select el;  

Console.WriteLine("");  
Console.WriteLine("Ancestors and Self");  
Console.WriteLine("----");  
foreach (XElement de in allAncestors)  
    Console.WriteLine(de.Name);  
Imports <xmlns="http://www.adventure-works.com">  

Module Module1  
    Sub Main()  
        Dim xmlTree As XElement = _  
            <Root>  
                <Child1>  
                    <GrandChild1>  
                        <GreatGrandChild1>content</GreatGrandChild1>  
                    </GrandChild1>  
                </Child1>  
                <Child2>  
                    <GrandChild2>  
                        <GreatGrandChild2>content</GreatGrandChild2>  
                    </GrandChild2>  
                </Child2>  
            </Root>  

        Dim greatGrandChildren = From el In xmlTree.Descendants _  
                                 Where el.Name.LocalName.StartsWith("Great") _  
                                 Select el  

        Console.WriteLine("Great Grand Children Elements")  
        Console.WriteLine("----")  

        For Each de As XElement In greatGrandChildren  
            Console.WriteLine(de.Name)  
        Next  

        Dim allAncestors = From el In greatGrandChildren.AncestorsAndSelf.Distinct _  
                           Select el  

        Console.WriteLine("")  
        Console.WriteLine("Ancestors and Self")  
        Console.WriteLine("----")  

        For Each de As XElement In allAncestors  
            Console.WriteLine(de.Name)  
        Next  
    End Sub  
End Module  

この例を実行すると、次の出力が生成されます。This example produces the following output:

Great Grand Children Elements  
----  
{http://www.adventure-works.com}GreatGrandChild1  
{http://www.adventure-works.com}GreatGrandChild2  

Ancestors and Self  
----  
{http://www.adventure-works.com}GreatGrandChild1  
{http://www.adventure-works.com}GrandChild1  
{http://www.adventure-works.com}Child1  
{http://www.adventure-works.com}Root  
{http://www.adventure-works.com}GreatGrandChild2  
{http://www.adventure-works.com}GrandChild2  
{http://www.adventure-works.com}Child2  

注釈

ソース コレクション内の複数のノードがある、同じ祖先、先祖が複数回に含める結果のコレクション。If multiple nodes in the source collection have the same ancestor, the ancestor will be included multiple times in the result collection. これを回避するには、使用、Distinctメソッド。To avoid this, use the Distinct method.

このメソッドは遅延実行を使用します。This method uses deferred execution.

こちらもご覧ください

AncestorsAndSelf(IEnumerable<XElement>, XName) AncestorsAndSelf(IEnumerable<XElement>, XName) AncestorsAndSelf(IEnumerable<XElement>, XName) AncestorsAndSelf(IEnumerable<XElement>, XName)

ソース コレクション内のすべての要素、およびソース コレクション内のすべての要素の先祖が格納され、フィルター処理された要素のコレクションを返します。Returns a filtered collection of elements that contains every element in the source collection, and the ancestors of every element in the source collection. 一致する XName を持つ要素のみがコレクションに含められます。Only elements that have a matching XName are included in the collection.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Collections::Generic::IEnumerable<System::Xml::Linq::XElement ^> ^ AncestorsAndSelf(System::Collections::Generic::IEnumerable<System::Xml::Linq::XElement ^> ^ source, System::Xml::Linq::XName ^ name);
public static System.Collections.Generic.IEnumerable<System.Xml.Linq.XElement> AncestorsAndSelf (this System.Collections.Generic.IEnumerable<System.Xml.Linq.XElement> source, System.Xml.Linq.XName name);
static member AncestorsAndSelf : seq<System.Xml.Linq.XElement> * System.Xml.Linq.XName -> seq<System.Xml.Linq.XElement>
<Extension()>
Public Function AncestorsAndSelf (source As IEnumerable(Of XElement), name As XName) As IEnumerable(Of XElement)

パラメーター

source
IEnumerable<XElement>

ソース コレクションが格納されている IEnumerable<T>XElementAn IEnumerable<T> of XElement that contains the source collection.

name
XName XName XName XName

照合する対象の XNameThe XName to match.

戻り値

ソース コレクション内のすべての要素、およびソース コレクション内のすべての要素の先祖が格納された、IEnumerable<T>XElementAn IEnumerable<T> of XElement that contains every element in the source collection, and the ancestors of every element in the source collection. 一致する XName を持つ要素のみがコレクションに含められます。Only elements that have a matching XName are included in the collection.

次の例では、優れた孫要素のコレクションを取得します。The following example retrieves a collection of the great grandchildren elements. すべての自己を取得し、この軸メソッドを使用して、指定された一致するコレクション内のすべての要素の先祖とXNameします。It then uses this axis method to retrieve all self and ancestors of all elements in the collection that match a specified XName.

XElement xmlTree = new XElement("Root",  
    new XElement("Child1",  
        new XElement("GrandChild1",  
            new XElement("GreatGrandChild1", "content")  
        )  
    ),  
    new XElement("Child2",  
        new XElement("GrandChild2",  
            new XElement("GreatGrandChild2", "content")  
        )  
    )  
);  
IEnumerable<XElement> greatGrandChildren =  
    from el in xmlTree.Descendants()  
    where el.Name.LocalName.StartsWith("Great")  
    select el;  

Console.WriteLine("Great Grand Children Elements");  
Console.WriteLine("----");  
foreach (XElement de in greatGrandChildren)  
    Console.WriteLine(de.Name);  

IEnumerable<XElement> allAncestors =  
    from el in greatGrandChildren.AncestorsAndSelf("GreatGrandChild1")  
    select el;  

Console.WriteLine("");  
Console.WriteLine("Ancestors and Self");  
Console.WriteLine("----");  
foreach (XElement de in allAncestors)  
    Console.WriteLine(de.Name);  
Dim xmlTree As XElement = _  
    <Root>  
        <Child1>  
            <GrandChild1>  
                <GreatGrandChild1>content</GreatGrandChild1>  
            </GrandChild1>  
        </Child1>  
        <Child2>  
            <GrandChild2>  
                <GreatGrandChild2>content</GreatGrandChild2>  
            </GrandChild2>  
        </Child2>  
    </Root>  

Dim greatGrandChildren = From el In xmlTree.Descendants _  
                         Where el.Name.LocalName.StartsWith("Great") _  
                         Select el  

Console.WriteLine("Great Grand Children Elements")  
Console.WriteLine("----")  

For Each de As XElement In greatGrandChildren  
    Console.WriteLine(de.Name)  
Next  

Dim allAncestors = From el In greatGrandChildren.AncestorsAndSelf("GreatGrandChild1") _  
                   Select el  

Console.WriteLine("")  
Console.WriteLine("Ancestors and Self")  
Console.WriteLine("----")  

For Each de As XElement In allAncestors  
    Console.WriteLine(de.Name)  
Next  

この例を実行すると、次の出力が生成されます。This example produces the following output:

Great Grand Children Elements  
----  
GreatGrandChild1  
GreatGrandChild2  

Ancestors and Self  
----  
GreatGrandChild1  

同じ例を次に示しますが、ここで XML が名前空間です。The following is the same example, but in this case the XML is in a namespace. 詳細については、次を参照してください。 XML 名前空間の使用します。For more information, see Working with XML Namespaces.

XNamespace aw = "http://www.adventure-works.com";  
XElement xmlTree = new XElement(aw + "Root",  
    new XElement(aw + "Child1",  
        new XElement(aw + "GrandChild1",  
            new XElement(aw + "GreatGrandChild1", "content")  
        )  
    ),  
    new XElement(aw + "Child2",  
        new XElement(aw + "GrandChild2",  
            new XElement(aw + "GreatGrandChild2", "content")  
        )  
    )  
);  
IEnumerable<XElement> greatGrandChildren =  
    from el in xmlTree.Descendants()  
    where el.Name.LocalName.StartsWith("Great")  
    select el;  

Console.WriteLine("Great Grand Children Elements");  
Console.WriteLine("----");  
foreach (XElement de in greatGrandChildren)  
    Console.WriteLine(de.Name);  

IEnumerable<XElement> allAncestors =  
    from el in greatGrandChildren.AncestorsAndSelf(aw + "GreatGrandChild1")  
    select el;  

Console.WriteLine("");  
Console.WriteLine("Ancestors and Self");  
Console.WriteLine("----");  
foreach (XElement de in allAncestors)  
    Console.WriteLine(de.Name);  
Imports <xmlns="http://www.adventure-works.com">  

Module Module1  
    Sub Main()  
        Dim xmlTree As XElement = _  
            <Root>  
                <Child1>  
                    <GrandChild1>  
                        <GreatGrandChild1>content</GreatGrandChild1>  
                    </GrandChild1>  
                </Child1>  
                <Child2>  
                    <GrandChild2>  
                        <GreatGrandChild2>content</GreatGrandChild2>  
                    </GrandChild2>  
                </Child2>  
            </Root>  

        Dim greatGrandChildren = From el In xmlTree.Descendants _  
                                 Where el.Name.LocalName.StartsWith("Great") _  
                                 Select el  

        Console.WriteLine("Great Grand Children Elements")  
        Console.WriteLine("----")  

        For Each de As XElement In greatGrandChildren  
            Console.WriteLine(de.Name)  
        Next  

        Dim allAncestors = From el In greatGrandChildren.AncestorsAndSelf(GetXmlNamespace() + "GreatGrandChild1") _  
                           Select el  

        Console.WriteLine("")  
        Console.WriteLine("Ancestors and Self")  
        Console.WriteLine("----")  

        For Each de As XElement In allAncestors  
            Console.WriteLine(de.Name)  
        Next  
    End Sub  
End Module  

この例を実行すると、次の出力が生成されます。This example produces the following output:

Great Grand Children Elements  
----  
{http://www.adventure-works.com}GreatGrandChild1  
{http://www.adventure-works.com}GreatGrandChild2  

Ancestors and Self  
----  
{http://www.adventure-works.com}GreatGrandChild1  

注釈

ソース コレクション内の複数のノードが、対応する同じ先祖を持つ場合XName先祖が複数回に含める結果のコレクション。If multiple nodes in the source collection have the same ancestor with a matching XName, the ancestor will be included multiple times in the result collection.

このメソッドは遅延実行を使用します。This method uses deferred execution.

こちらもご覧ください

適用対象