Package.GetRelationshipsByType(String) 메서드

정의

네임스페이스:

System.IO.Packaging

어셈블리:

System.IO.Packaging.dll

패키지:

System.IO.Packaging v9.0.0-rc.2.24473.5

Source:

Package.cs

지정된 RelationshipType에 일치하는 모든 패키지 수준 관계의 컬렉션을 반환합니다.

public:
 System::IO::Packaging::PackageRelationshipCollection ^ GetRelationshipsByType(System::String ^ relationshipType);

public System.IO.Packaging.PackageRelationshipCollection GetRelationshipsByType (string relationshipType);

member this.GetRelationshipsByType : string -> System.IO.Packaging.PackageRelationshipCollection

Public Function GetRelationshipsByType (relationshipType As String) As PackageRelationshipCollection

매개 변수

relationshipType

String

컬렉션에서 일치하고 반환할 RelationshipType입니다.

반환

PackageRelationshipCollection

지정된 relationshipType에 일치하는 패키지 수준 관계의 컬렉션입니다.

예외

ArgumentNullException

relationshipType이(가) null인 경우

ArgumentException

relationshipType이 빈 문자열인 경우

ObjectDisposedException

패키지가 열려 있지 않은 경우(Dispose(Boolean) 또는 Close()가 호출된 경우)

IOException

패키지가 쓰기 전용인 경우

예제

다음 예제에서는 패키지에 대해 정의된 관계를 검색하는 방법을 보여줍니다.

// Open the Package.
// ('using' statement insures that 'package' is
//  closed and disposed when it goes out of scope.)
using (Package package =
    Package.Open(packagePath, FileMode.Open, FileAccess.Read))
{
    PackagePart documentPart = null;
    PackagePart resourcePart = null;

    // Get the Package Relationships and look for
    //   the Document part based on the RelationshipType
    Uri uriDocumentTarget = null;
    foreach (PackageRelationship relationship in
        package.GetRelationshipsByType(PackageRelationshipType))
    {
        // Resolve the Relationship Target Uri
        //   so the Document Part can be retrieved.
        uriDocumentTarget = PackUriHelper.ResolvePartUri(
            new Uri("/", UriKind.Relative), relationship.TargetUri);

        // Open the Document Part, write the contents to a file.
        documentPart = package.GetPart(uriDocumentTarget);
        ExtractPart(documentPart, targetDirectory);
    }

    // Get the Document part's Relationships,
    //   and look for required resources.
    Uri uriResourceTarget = null;
    foreach (PackageRelationship relationship in
        documentPart.GetRelationshipsByType(
                                ResourceRelationshipType))
    {
        // Resolve the Relationship Target Uri
        //   so the Resource Part can be retrieved.
        uriResourceTarget = PackUriHelper.ResolvePartUri(
            documentPart.Uri, relationship.TargetUri);

        // Open the Resource Part and write the contents to a file.
        resourcePart = package.GetPart(uriResourceTarget);
        ExtractPart(resourcePart, targetDirectory);
    }
}// end:using(Package package) - Close & dispose package.

' Open the Package.
' ('using' statement insures that 'package' is
'  closed and disposed when it goes out of scope.)
Using package As Package = Package.Open(packagePath, FileMode.Open, FileAccess.Read)
    Dim documentPart As PackagePart = Nothing
    Dim resourcePart As PackagePart = Nothing

    ' Get the Package Relationships and look for
    '   the Document part based on the RelationshipType
    Dim uriDocumentTarget As Uri = Nothing
    For Each relationship As PackageRelationship In package.GetRelationshipsByType(PackageRelationshipType)
        ' Resolve the Relationship Target Uri
        '   so the Document Part can be retrieved.
        uriDocumentTarget = PackUriHelper.ResolvePartUri(New Uri("/", UriKind.Relative), relationship.TargetUri)

        ' Open the Document Part, write the contents to a file.
        documentPart = package.GetPart(uriDocumentTarget)
        ExtractPart(documentPart, targetDirectory)
    Next relationship

    ' Get the Document part's Relationships,
    '   and look for required resources.
    Dim uriResourceTarget As Uri = Nothing
    For Each relationship As PackageRelationship In documentPart.GetRelationshipsByType(ResourceRelationshipType)
        ' Resolve the Relationship Target Uri
        '   so the Resource Part can be retrieved.
        uriResourceTarget = PackUriHelper.ResolvePartUri(documentPart.Uri, relationship.TargetUri)

        ' Open the Resource Part and write the contents to a file.
        resourcePart = package.GetPart(uriResourceTarget)
        ExtractPart(resourcePart, targetDirectory)
    Next relationship

End Using ' end:using(Package package) - Close & dispose package.

설명

GetRelationships 는 를 반환 null하지 않습니다. 그러나 지정된 에 일치하는 패키지 수준 관계가 없으면 반환된 relationshipType컬렉션에 요소가 0개 포함될 수 있습니다.

다음 표에서는 OPC(Open Packaging Conventions) 사양에 정의된 패키지 수준 relationshipType URI를 보여 줍니다.

패키지 수준 관계	관계 유형 URI
핵심 속성	http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties
디지털 서명	http://schemas.openxmlformats.org/package/2006/relationships/digital-signature/signature
디지털 서명 인증서	http://schemas.openxmlformats.org/package/2006/relationships/digital-signature/certificate
디지털 서명 원본	http://schemas.openxmlformats.org/package/2006/relationships/digital-signature/origin
미리 보기	http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail

자세한 내용은 에서 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/다운로드할 수 있는 OPC(Open Packaging Conventions) 사양을 참조하세요.

추가 정보

• GetRelationship(String)
• GetRelationships()
• CreateRelationship(Uri, TargetMode, String)
• DeleteRelationship(String)