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PackagePart.GetRelationshipsByType Method

.NET Framework 4.5

Returns a collection of the relationships that match a specified RelationshipType.

Namespace: System.IO.Packaging
Assembly: WindowsBase (in WindowsBase.dll)

public PackageRelationshipCollection GetRelationshipsByType(
	string relationshipType
)

Parameters

relationshipType: Type: System.String
The RelationshipType of the relationships to locate and return in the collection.

Return Value

Type: System.IO.Packaging.PackageRelationshipCollection
A collection of the relationships that match the specified relationshipType.

Exceptions

Exception	Condition
ArgumentNullException	relationshipType is null.
ArgumentException	relationshipType is an empty string.
InvalidOperationException	The part has been deleted. -or- The Package is not open (Dispose or Close has been called).
IOException	The package is write-only (relationship information cannot be read).

Remarks

The returned collection is never null; however, the collection might contain zero elements if no relationships match the specified relationshipType that is defined for the part.

Any leading or trailing spaces in the relationshipType string are automatically trimmed.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

PackagePart Class

System.IO.Packaging Namespace

Other Resources

Open Packaging Conventions Specification

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