PackUriHelper.ResolvePartUri(Uri, Uri) 方法
重要
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傳回組件 URI，提供來源組件 URI 以及含有目標組件相對路徑的 URI。
public:
static Uri ^ ResolvePartUri(Uri ^ sourcePartUri, Uri ^ targetUri);C#
public static Uri ResolvePartUri (Uri sourcePartUri, Uri targetUri);static member ResolvePartUri : Uri * Uri -> UriPublic Shared Function ResolvePartUri (sourcePartUri As Uri, targetUri As Uri) As Uri- targetUri
- Uri
相對於目標組件的 URI。
在指定的 SourcePartUri 與 targetUri 參數之間解析的目標組件之 URI。
sourcePartUri 或 targetUri 為 null。
下列範例會示範如何使用 ResolvePartUri 方法。
C#
// 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.
下表說明的 ResolvePartUri範例案例。
sourcePartUri |
targetUri |
傳回的 URI |
|---|---|---|
| /mydoc/markup/page.xml | picture.jpg | /mydoc/markup/picture.jpg |
| /mydoc/markup/page.xml | images/picture.jpg | /mydoc/markup/images/picture.jpg |
| /mydoc/markup/page.xml | ./picture.jpg | /mydoc/markup/picture.jpg |
| /mydoc/markup/page.xml | ../picture.jpg | /mydoc/picture.jpg |
| /mydoc/markup/page.xml | ../images/picture.jpg | /mydoc/images/picture.jpg |
| / | images/picture.jpg | /images/picture.jpg |
| 產品 | 版本 |
|---|---|
| .NET | Core 1.0, Core 1.1, 8 (package-provided), 9 (package-provided) |
| .NET Framework | 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1 |
| .NET Standard | 2.0 (package-provided) |
| Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9 |
