PackageStore.AddPackage(Uri, Package) 方法

  • 参考

定义

命名空间:
System.IO.Packaging
程序集:
PresentationCore.dll

将 Package 添加到存储区。

public:
 static void AddPackage(Uri ^ uri, System::IO::Packaging::Package ^ package);
public static void AddPackage (Uri uri, System.IO.Packaging.Package package);
static member AddPackage : Uri * System.IO.Packaging.Package -> unit
Public Shared Sub AddPackage (uri As Uri, package As Package)

参数

uri
Uri

要在 PackWebRequest 中比较的 package 的键 URI。

package
Package

要添加到存储区的包。

例外

ArgumentNullException

package 为 null。

ArgumentException

packageUri 是无效的包 URI。

InvalidOperationException

带有指定 packageUri 的包已位于存储区中。

示例

下面的示例显示如何使用 AddPackage 方法。

if (rmi.CryptoProvider.CanDecrypt == true)
    ShowStatus("   Decryption granted.");
else
    ShowStatus("   CANNOT DECRYPT!");

ShowStatus("   Getting the Package from\n" +
           "      the EncryptedPackage.");
_xpsPackage = ePackage.GetPackage();
if (_xpsPackage == null)
{
    MessageBox.Show("Unable to get Package.");
    return false;
}

// Set a PackageStore Uri reference for the encrypted stream.
// ("sdk://packLocation" is a pseudo URI used by
//  PackUriHelper.Create to define the parserContext.BaseURI
//  that XamlReader uses to access the encrypted data stream.)
Uri packageUri = new Uri(@"sdk://packLocation", UriKind.Absolute);
// Add the URI package
PackageStore.AddPackage(packageUri, _xpsPackage);
// Determine the starting part for the package.
PackagePart startingPart = GetPackageStartingPart(_xpsPackage);

// Set the DocViewer.Document property.
ShowStatus("   Opening in DocumentViewer.");
ParserContext parserContext = new ParserContext();
parserContext.BaseUri = PackUriHelper.Create(
                            packageUri, startingPart.Uri);
parserContext.XamlTypeMapper = XamlTypeMapper.DefaultMapper;
DocViewer.Document = XamlReader.Load(
    startingPart.GetStream(), parserContext)
        as IDocumentPaginatorSource;

// Enable document menu controls.
menuFileClose.IsEnabled = true;
menuFilePrint.IsEnabled = true;
menuViewIncreaseZoom.IsEnabled = true;
menuViewDecreaseZoom.IsEnabled = true;

// Give the DocumentViewer focus.
DocViewer.Focus();

If rmi.CryptoProvider.CanDecrypt = True Then
    ShowStatus("   Decryption granted.")
Else
    ShowStatus("   CANNOT DECRYPT!")
End If

ShowStatus("   Getting the Package from" & vbLf & "      the EncryptedPackage.")
_xpsPackage = ePackage.GetPackage()
If _xpsPackage Is Nothing Then
    MessageBox.Show("Unable to get Package.")
    Return False
End If

' Set a PackageStore Uri reference for the encrypted stream.
' ("sdk://packLocation" is a pseudo URI used by
'  PackUriHelper.Create to define the parserContext.BaseURI
'  that XamlReader uses to access the encrypted data stream.)
Dim packageUri As New Uri("sdk://packLocation", UriKind.Absolute)
' Add the URI package
PackageStore.AddPackage(packageUri, _xpsPackage)
' Determine the starting part for the package.
Dim startingPart As PackagePart = GetPackageStartingPart(_xpsPackage)

' Set the DocViewer.Document property.
ShowStatus("   Opening in DocumentViewer.")
Dim parserContext As New ParserContext()
parserContext.BaseUri = PackUriHelper.Create(packageUri, startingPart.Uri)
parserContext.XamlTypeMapper = XamlTypeMapper.DefaultMapper
DocViewerProperty.Document = TryCast(XamlReader.Load(startingPart.GetStream(), parserContext), IDocumentPaginatorSource)

' Enable document menu controls.
menuFileClose.IsEnabled = True
menuFilePrint.IsEnabled = True
menuViewIncreaseZoom.IsEnabled = True
menuViewDecreaseZoom.IsEnabled = True

' Give the DocumentViewer focus.
DocViewerProperty.Focus()

注解

packageUri 定义在调用 PackWebRequest时比较的包的密钥 URI。

如果 与packageUri调用中的 PackWebRequest 匹配UriPackagePart，则 使用 中PackageStore定义的包来访问请求的部件。

packageUri如果 与调用中的 PackWebRequest 不匹配UriPackagePart，则会打开具有指定 URI 的包来访问请求的部件。

安全说明 此方法要求 EnvironmentPermission 所有自定义 Package (非ZipPackage) 类型。

适用于

另请参阅