PackagePart.RelationshipExists(String) Method

Definition

Namespace:

System.IO.Packaging

Assembly:

System.IO.Packaging.dll

Package:

System.IO.Packaging v8.0.0

Source:

PackagePart.cs

Returns a value that indicates whether this part owns a relationship with a specified Id.

public:
 bool RelationshipExists(System::String ^ id);

public bool RelationshipExists (string id);

member this.RelationshipExists : string -> bool

Public Function RelationshipExists (id As String) As Boolean

Parameters

id

String

The Id of the relationship to check for.

Returns

Boolean

true if this part owns a relationship with the specified id; otherwise, false.

Exceptions

ArgumentNullException

id is null.

XmlException

id is not a valid XML identifier.

InvalidOperationException

The part has been deleted.

-or-

The Package is not open (Dispose(Boolean) or Close() has been called).

IOException

The package is write-only (relationship information cannot be read).

Remarks

id must be a valid XML identifier. The id type is xsd:ID and must follow the naming conventions prescribed in the XML Schema Part 2: Datatypes specification (see https://www.w3.org/TR/xmlschema-2/#ID).

See also

• CreateRelationship
• DeleteRelationship(String)
• GetRelationship(String)
• GetRelationships()
• GetRelationshipsByType(String)