Package.Open 方法

定义

命名空间:: System.IO.Packaging

程序集:: System.IO.Packaging.dll

程序集:: WindowsBase.dll

程序集:: System.IO.Packaging.dll, WindowsBase.dll

包:: System.IO.Packaging v11.0.0-preview.4.26230.115

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

打开包。

重载

名称	说明
Open(Stream)	在给定的 IO 流上打开包。
Open(String)	在给定的路径和文件名处打开包。
Open(Stream, FileMode)	打开具有给定 IO 流和文件模式的包。
Open(String, FileMode)	使用给定文件模式在给定路径处打开包。
Open(Stream, FileMode, FileAccess)	打开具有给定 IO 流、文件模式和文件访问设置的包。
Open(String, FileMode, FileAccess)	使用给定的文件模式和文件访问设置在给定路径处打开包。
Open(String, FileMode, FileAccess, FileShare)	使用给定的文件模式、文件访问和文件共享设置在给定路径处打开包。

示例

以下示例演示如何创建一个包含Package和PackageRelationship元素以及存储数据的新PackagePart元素。

//  -------------------------- CreatePackage --------------------------
/// <summary>
///   Creates a package zip file containing specified
///   content and resource files.</summary>
private static void CreatePackage()
{
    // Convert system path and file names to Part URIs. In this example
    // Uri partUriDocument /* /Content/Document.xml */ =
    //     PackUriHelper.CreatePartUri(
    //         new Uri("Content\Document.xml", UriKind.Relative));
    // Uri partUriResource /* /Resources/Image1.jpg */ =
    //     PackUriHelper.CreatePartUri(
    //         new Uri("Resources\Image1.jpg", UriKind.Relative));
    Uri partUriDocument = PackUriHelper.CreatePartUri(
                              new Uri(documentPath, UriKind.Relative));
    Uri partUriResource = PackUriHelper.CreatePartUri(
                              new Uri(resourcePath, UriKind.Relative));

    // Create the Package
    // (If the package file already exists, FileMode.Create will
    //  automatically delete it first before creating a new one.
    //  The 'using' statement insures that 'package' is
    //  closed and disposed when it goes out of scope.)
    using (Package package =
        Package.Open(packagePath, FileMode.Create))
    {
        // Add the Document part to the Package
        PackagePart packagePartDocument =
            package.CreatePart(partUriDocument,
                           System.Net.Mime.MediaTypeNames.Text.Xml);

        // Copy the data to the Document Part
        using (FileStream fileStream = new FileStream(
               documentPath, FileMode.Open, FileAccess.Read))
        {
            CopyStream(fileStream, packagePartDocument.GetStream());
        }// end:using(fileStream) - Close and dispose fileStream.

        // Add a Package Relationship to the Document Part
        package.CreateRelationship(packagePartDocument.Uri,
                                   TargetMode.Internal,
                                   PackageRelationshipType);

        // Add a Resource Part to the Package
        PackagePart packagePartResource =
            package.CreatePart(partUriResource,
                           System.Net.Mime.MediaTypeNames.Image.Jpeg);

        // Copy the data to the Resource Part
        using (FileStream fileStream = new FileStream(
               resourcePath, FileMode.Open, FileAccess.Read))
        {
            CopyStream(fileStream, packagePartResource.GetStream());
        }// end:using(fileStream) - Close and dispose fileStream.

        // Add Relationship from the Document part to the Resource part
        packagePartDocument.CreateRelationship(
                                new Uri(@"../resources/image1.jpg",
                                UriKind.Relative),
                                TargetMode.Internal,
                                ResourceRelationshipType);
    }// end:using (Package package) - Close and dispose package.
}// end:CreatePackage()

//  --------------------------- CopyStream ---------------------------
/// <summary>
///   Copies data from a source stream to a target stream.</summary>
/// <param name="source">
///   The source stream to copy from.</param>
/// <param name="target">
///   The destination stream to copy to.</param>
private static void CopyStream(Stream source, Stream target)
{
    const int bufSize = 0x1000;
    byte[] buf = new byte[bufSize];
    int bytesRead = 0;
    while ((bytesRead = source.Read(buf, 0, bufSize)) > 0)
        target.Write(buf, 0, bytesRead);
}// end:CopyStream()

'  -------------------------- CreatePackage --------------------------
''' <summary>
'''   Creates a package zip file containing specified
'''   content and resource files.</summary>
Private Shared Sub CreatePackage()
    ' Convert system path and file names to Part URIs. In this example
    ' Dim partUriDocument as Uri /* /Content/Document.xml */ =
    '     PackUriHelper.CreatePartUri(
    '         New Uri("Content\Document.xml", UriKind.Relative))
    ' Dim partUriResource as Uri /* /Resources/Image1.jpg */ =
    '     PackUriHelper.CreatePartUri(
    '         New Uri("Resources\Image1.jpg", UriKind.Relative))
    Dim partUriDocument As Uri = PackUriHelper.CreatePartUri(New Uri(documentPath, UriKind.Relative))
    Dim partUriResource As Uri = PackUriHelper.CreatePartUri(New Uri(resourcePath, UriKind.Relative))

    ' Create the Package
    ' (If the package file already exists, FileMode.Create will
    '  automatically delete it first before creating a new one.
    '  The 'using' statement insures that 'package' is
    '  closed and disposed when it goes out of scope.)
    Using package As Package = Package.Open(packagePath, FileMode.Create)
        ' Add the Document part to the Package
        Dim packagePartDocument As PackagePart = package.CreatePart(partUriDocument, System.Net.Mime.MediaTypeNames.Text.Xml)

        ' Copy the data to the Document Part
        Using fileStream As New FileStream(documentPath, FileMode.Open, FileAccess.Read)
            CopyStream(fileStream, packagePartDocument.GetStream())
        End Using ' end:using(fileStream) - Close and dispose fileStream.

        ' Add a Package Relationship to the Document Part
        package.CreateRelationship(packagePartDocument.Uri, TargetMode.Internal, PackageRelationshipType)

        ' Add a Resource Part to the Package
        Dim packagePartResource As PackagePart = package.CreatePart(partUriResource, System.Net.Mime.MediaTypeNames.Image.Jpeg)

        ' Copy the data to the Resource Part
        Using fileStream As New FileStream(resourcePath, FileMode.Open, FileAccess.Read)
            CopyStream(fileStream, packagePartResource.GetStream())
        End Using ' end:using(fileStream) - Close and dispose fileStream.

        ' Add Relationship from the Document part to the Resource part
        packagePartDocument.CreateRelationship(New Uri("../resources/image1.jpg", UriKind.Relative), TargetMode.Internal, ResourceRelationshipType)

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

End Sub


'  --------------------------- CopyStream ---------------------------
''' <summary>
'''   Copies data from a source stream to a target stream.</summary>
''' <param name="source">
'''   The source stream to copy from.</param>
''' <param name="target">
'''   The destination stream to copy to.</param>
Private Shared Sub CopyStream(ByVal source As Stream, ByVal target As Stream)
    Const bufSize As Integer = &H1000
    Dim buf(bufSize - 1) As Byte
    Dim bytesRead As Integer = 0
    bytesRead = source.Read(buf, 0, bufSize)
    Do While bytesRead > 0
        target.Write(buf, 0, bytesRead)
        bytesRead = source.Read(buf, 0, bufSize)
    Loop
End Sub

注解

ZipPackage 是方法使用 Open 的默认包类型。

有关其他信息，请参阅可在以下位置 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/下载的开放打包约定（OPC）规范。

Open(Stream)

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

在给定的 IO 流上打开包。

public:
 static System::IO::Packaging::Package ^ Open(System::IO::Stream ^ stream);

public static System.IO.Packaging.Package Open(System.IO.Stream stream);

static member Open : System.IO.Stream -> System.IO.Packaging.Package

Public Shared Function Open (stream As Stream) As Package

参数

stream: Stream

打开包的 IO 流。

Package

打开的包。

例外

ArgumentNullException

stream 是 null。

IOException

要打开的包需要读取或读/写权限，并且指定的 stream 包是只读的;或者，要打开的包需要写入或读/写权限，并且指定的 stream 是只读的。

注解

ZipPackage 是方法使用 Open 的默认包类型。

有关其他信息，请参阅可在以下位置 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/下载的开放打包约定（OPC）规范。

适用于

Open(String)

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

在给定的路径和文件名处打开包。

public:
 static System::IO::Packaging::Package ^ Open(System::String ^ path);

public static System.IO.Packaging.Package Open(string path);

static member Open : string -> System.IO.Packaging.Package

Public Shared Function Open (path As String) As Package

参数

path: String

包的路径和文件名。

Package

打开的包。

例外

ArgumentNullException

path 是 null。

示例

以下示例演示如何创建一个包含Package和PackageRelationship元素以及存储数据的新PackagePart元素。

//  -------------------------- CreatePackage --------------------------
/// <summary>
///   Creates a package zip file containing specified
///   content and resource files.</summary>
private static void CreatePackage()
{
    // Convert system path and file names to Part URIs. In this example
    // Uri partUriDocument /* /Content/Document.xml */ =
    //     PackUriHelper.CreatePartUri(
    //         new Uri("Content\Document.xml", UriKind.Relative));
    // Uri partUriResource /* /Resources/Image1.jpg */ =
    //     PackUriHelper.CreatePartUri(
    //         new Uri("Resources\Image1.jpg", UriKind.Relative));
    Uri partUriDocument = PackUriHelper.CreatePartUri(
                              new Uri(documentPath, UriKind.Relative));
    Uri partUriResource = PackUriHelper.CreatePartUri(
                              new Uri(resourcePath, UriKind.Relative));

    // Create the Package
    // (If the package file already exists, FileMode.Create will
    //  automatically delete it first before creating a new one.
    //  The 'using' statement insures that 'package' is
    //  closed and disposed when it goes out of scope.)
    using (Package package =
        Package.Open(packagePath, FileMode.Create))
    {
        // Add the Document part to the Package
        PackagePart packagePartDocument =
            package.CreatePart(partUriDocument,
                           System.Net.Mime.MediaTypeNames.Text.Xml);

        // Copy the data to the Document Part
        using (FileStream fileStream = new FileStream(
               documentPath, FileMode.Open, FileAccess.Read))
        {
            CopyStream(fileStream, packagePartDocument.GetStream());
        }// end:using(fileStream) - Close and dispose fileStream.

        // Add a Package Relationship to the Document Part
        package.CreateRelationship(packagePartDocument.Uri,
                                   TargetMode.Internal,
                                   PackageRelationshipType);

        // Add a Resource Part to the Package
        PackagePart packagePartResource =
            package.CreatePart(partUriResource,
                           System.Net.Mime.MediaTypeNames.Image.Jpeg);

        // Copy the data to the Resource Part
        using (FileStream fileStream = new FileStream(
               resourcePath, FileMode.Open, FileAccess.Read))
        {
            CopyStream(fileStream, packagePartResource.GetStream());
        }// end:using(fileStream) - Close and dispose fileStream.

        // Add Relationship from the Document part to the Resource part
        packagePartDocument.CreateRelationship(
                                new Uri(@"../resources/image1.jpg",
                                UriKind.Relative),
                                TargetMode.Internal,
                                ResourceRelationshipType);
    }// end:using (Package package) - Close and dispose package.
}// end:CreatePackage()

//  --------------------------- CopyStream ---------------------------
/// <summary>
///   Copies data from a source stream to a target stream.</summary>
/// <param name="source">
///   The source stream to copy from.</param>
/// <param name="target">
///   The destination stream to copy to.</param>
private static void CopyStream(Stream source, Stream target)
{
    const int bufSize = 0x1000;
    byte[] buf = new byte[bufSize];
    int bytesRead = 0;
    while ((bytesRead = source.Read(buf, 0, bufSize)) > 0)
        target.Write(buf, 0, bytesRead);
}// end:CopyStream()

'  -------------------------- CreatePackage --------------------------
''' <summary>
'''   Creates a package zip file containing specified
'''   content and resource files.</summary>
Private Shared Sub CreatePackage()
    ' Convert system path and file names to Part URIs. In this example
    ' Dim partUriDocument as Uri /* /Content/Document.xml */ =
    '     PackUriHelper.CreatePartUri(
    '         New Uri("Content\Document.xml", UriKind.Relative))
    ' Dim partUriResource as Uri /* /Resources/Image1.jpg */ =
    '     PackUriHelper.CreatePartUri(
    '         New Uri("Resources\Image1.jpg", UriKind.Relative))
    Dim partUriDocument As Uri = PackUriHelper.CreatePartUri(New Uri(documentPath, UriKind.Relative))
    Dim partUriResource As Uri = PackUriHelper.CreatePartUri(New Uri(resourcePath, UriKind.Relative))

    ' Create the Package
    ' (If the package file already exists, FileMode.Create will
    '  automatically delete it first before creating a new one.
    '  The 'using' statement insures that 'package' is
    '  closed and disposed when it goes out of scope.)
    Using package As Package = Package.Open(packagePath, FileMode.Create)
        ' Add the Document part to the Package
        Dim packagePartDocument As PackagePart = package.CreatePart(partUriDocument, System.Net.Mime.MediaTypeNames.Text.Xml)

        ' Copy the data to the Document Part
        Using fileStream As New FileStream(documentPath, FileMode.Open, FileAccess.Read)
            CopyStream(fileStream, packagePartDocument.GetStream())
        End Using ' end:using(fileStream) - Close and dispose fileStream.

        ' Add a Package Relationship to the Document Part
        package.CreateRelationship(packagePartDocument.Uri, TargetMode.Internal, PackageRelationshipType)

        ' Add a Resource Part to the Package
        Dim packagePartResource As PackagePart = package.CreatePart(partUriResource, System.Net.Mime.MediaTypeNames.Image.Jpeg)

        ' Copy the data to the Resource Part
        Using fileStream As New FileStream(resourcePath, FileMode.Open, FileAccess.Read)
            CopyStream(fileStream, packagePartResource.GetStream())
        End Using ' end:using(fileStream) - Close and dispose fileStream.

        ' Add Relationship from the Document part to the Resource part
        packagePartDocument.CreateRelationship(New Uri("../resources/image1.jpg", UriKind.Relative), TargetMode.Internal, ResourceRelationshipType)

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

End Sub


'  --------------------------- CopyStream ---------------------------
''' <summary>
'''   Copies data from a source stream to a target stream.</summary>
''' <param name="source">
'''   The source stream to copy from.</param>
''' <param name="target">
'''   The destination stream to copy to.</param>
Private Shared Sub CopyStream(ByVal source As Stream, ByVal target As Stream)
    Const bufSize As Integer = &H1000
    Dim buf(bufSize - 1) As Byte
    Dim bytesRead As Integer = 0
    bytesRead = source.Read(buf, 0, bufSize)
    Do While bytesRead > 0
        target.Write(buf, 0, bytesRead)
        bytesRead = source.Read(buf, 0, bufSize)
    Loop
End Sub

注解

ZipPackage 是方法使用 Open 的默认包类型。

此方法 Open 打开具有默认属性 OpenOrCreate的包， ReadWrite并且 None （若要指定不同的属性，请使用其他 Open 方法重载之一）。

有关其他信息，请参阅可在以下位置 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/下载的开放打包约定（OPC）规范。

适用于

Open(Stream, FileMode)

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

打开具有给定 IO 流和文件模式的包。

public:
 static System::IO::Packaging::Package ^ Open(System::IO::Stream ^ stream, System::IO::FileMode packageMode);

public static System.IO.Packaging.Package Open(System.IO.Stream stream, System.IO.FileMode packageMode);

static member Open : System.IO.Stream * System.IO.FileMode -> System.IO.Packaging.Package

Public Shared Function Open (stream As Stream, packageMode As FileMode) As Package

参数

stream: Stream

打开包的 IO 流。

packageMode: FileMode

打开包的文件模式。

Package

打开的包。

例外

ArgumentNullException

stream 是 null。

ArgumentOutOfRangeException

packageMode 值无效。

IOException

要打开的包需要读取或读/写权限，并且指定的 stream 包是只读的;或者，要打开的包需要写入或读/写权限，并且指定的 stream 是只读的。

注解

ZipPackage 是方法使用 Open 的默认包类型。

有关其他信息，请参阅可在以下位置 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/下载的开放打包约定（OPC）规范。

适用于

Open(String, FileMode)

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

使用给定文件模式在给定路径处打开包。

public:
 static System::IO::Packaging::Package ^ Open(System::String ^ path, System::IO::FileMode packageMode);

public static System.IO.Packaging.Package Open(string path, System.IO.FileMode packageMode);

static member Open : string * System.IO.FileMode -> System.IO.Packaging.Package

Public Shared Function Open (path As String, packageMode As FileMode) As Package

参数

path: String

包的路径和文件名。

packageMode: FileMode

打开包的文件模式。

Package

打开的包。

例外

ArgumentNullException

path 是 null。

ArgumentOutOfRangeException

值 packageMode 无效。

示例

以下示例演示如何创建一个包含Package和PackageRelationship元素以及存储数据的新PackagePart元素。

//  -------------------------- CreatePackage --------------------------
/// <summary>
///   Creates a package zip file containing specified
///   content and resource files.</summary>
private static void CreatePackage()
{
    // Convert system path and file names to Part URIs. In this example
    // Uri partUriDocument /* /Content/Document.xml */ =
    //     PackUriHelper.CreatePartUri(
    //         new Uri("Content\Document.xml", UriKind.Relative));
    // Uri partUriResource /* /Resources/Image1.jpg */ =
    //     PackUriHelper.CreatePartUri(
    //         new Uri("Resources\Image1.jpg", UriKind.Relative));
    Uri partUriDocument = PackUriHelper.CreatePartUri(
                              new Uri(documentPath, UriKind.Relative));
    Uri partUriResource = PackUriHelper.CreatePartUri(
                              new Uri(resourcePath, UriKind.Relative));

    // Create the Package
    // (If the package file already exists, FileMode.Create will
    //  automatically delete it first before creating a new one.
    //  The 'using' statement insures that 'package' is
    //  closed and disposed when it goes out of scope.)
    using (Package package =
        Package.Open(packagePath, FileMode.Create))
    {
        // Add the Document part to the Package
        PackagePart packagePartDocument =
            package.CreatePart(partUriDocument,
                           System.Net.Mime.MediaTypeNames.Text.Xml);

        // Copy the data to the Document Part
        using (FileStream fileStream = new FileStream(
               documentPath, FileMode.Open, FileAccess.Read))
        {
            CopyStream(fileStream, packagePartDocument.GetStream());
        }// end:using(fileStream) - Close and dispose fileStream.

        // Add a Package Relationship to the Document Part
        package.CreateRelationship(packagePartDocument.Uri,
                                   TargetMode.Internal,
                                   PackageRelationshipType);

        // Add a Resource Part to the Package
        PackagePart packagePartResource =
            package.CreatePart(partUriResource,
                           System.Net.Mime.MediaTypeNames.Image.Jpeg);

        // Copy the data to the Resource Part
        using (FileStream fileStream = new FileStream(
               resourcePath, FileMode.Open, FileAccess.Read))
        {
            CopyStream(fileStream, packagePartResource.GetStream());
        }// end:using(fileStream) - Close and dispose fileStream.

        // Add Relationship from the Document part to the Resource part
        packagePartDocument.CreateRelationship(
                                new Uri(@"../resources/image1.jpg",
                                UriKind.Relative),
                                TargetMode.Internal,
                                ResourceRelationshipType);
    }// end:using (Package package) - Close and dispose package.
}// end:CreatePackage()

//  --------------------------- CopyStream ---------------------------
/// <summary>
///   Copies data from a source stream to a target stream.</summary>
/// <param name="source">
///   The source stream to copy from.</param>
/// <param name="target">
///   The destination stream to copy to.</param>
private static void CopyStream(Stream source, Stream target)
{
    const int bufSize = 0x1000;
    byte[] buf = new byte[bufSize];
    int bytesRead = 0;
    while ((bytesRead = source.Read(buf, 0, bufSize)) > 0)
        target.Write(buf, 0, bytesRead);
}// end:CopyStream()

'  -------------------------- CreatePackage --------------------------
''' <summary>
'''   Creates a package zip file containing specified
'''   content and resource files.</summary>
Private Shared Sub CreatePackage()
    ' Convert system path and file names to Part URIs. In this example
    ' Dim partUriDocument as Uri /* /Content/Document.xml */ =
    '     PackUriHelper.CreatePartUri(
    '         New Uri("Content\Document.xml", UriKind.Relative))
    ' Dim partUriResource as Uri /* /Resources/Image1.jpg */ =
    '     PackUriHelper.CreatePartUri(
    '         New Uri("Resources\Image1.jpg", UriKind.Relative))
    Dim partUriDocument As Uri = PackUriHelper.CreatePartUri(New Uri(documentPath, UriKind.Relative))
    Dim partUriResource As Uri = PackUriHelper.CreatePartUri(New Uri(resourcePath, UriKind.Relative))

    ' Create the Package
    ' (If the package file already exists, FileMode.Create will
    '  automatically delete it first before creating a new one.
    '  The 'using' statement insures that 'package' is
    '  closed and disposed when it goes out of scope.)
    Using package As Package = Package.Open(packagePath, FileMode.Create)
        ' Add the Document part to the Package
        Dim packagePartDocument As PackagePart = package.CreatePart(partUriDocument, System.Net.Mime.MediaTypeNames.Text.Xml)

        ' Copy the data to the Document Part
        Using fileStream As New FileStream(documentPath, FileMode.Open, FileAccess.Read)
            CopyStream(fileStream, packagePartDocument.GetStream())
        End Using ' end:using(fileStream) - Close and dispose fileStream.

        ' Add a Package Relationship to the Document Part
        package.CreateRelationship(packagePartDocument.Uri, TargetMode.Internal, PackageRelationshipType)

        ' Add a Resource Part to the Package
        Dim packagePartResource As PackagePart = package.CreatePart(partUriResource, System.Net.Mime.MediaTypeNames.Image.Jpeg)

        ' Copy the data to the Resource Part
        Using fileStream As New FileStream(resourcePath, FileMode.Open, FileAccess.Read)
            CopyStream(fileStream, packagePartResource.GetStream())
        End Using ' end:using(fileStream) - Close and dispose fileStream.

        ' Add Relationship from the Document part to the Resource part
        packagePartDocument.CreateRelationship(New Uri("../resources/image1.jpg", UriKind.Relative), TargetMode.Internal, ResourceRelationshipType)

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

End Sub


'  --------------------------- CopyStream ---------------------------
''' <summary>
'''   Copies data from a source stream to a target stream.</summary>
''' <param name="source">
'''   The source stream to copy from.</param>
''' <param name="target">
'''   The destination stream to copy to.</param>
Private Shared Sub CopyStream(ByVal source As Stream, ByVal target As Stream)
    Const bufSize As Integer = &H1000
    Dim buf(bufSize - 1) As Byte
    Dim bytesRead As Integer = 0
    bytesRead = source.Read(buf, 0, bufSize)
    Do While bytesRead > 0
        target.Write(buf, 0, bytesRead)
        bytesRead = source.Read(buf, 0, bufSize)
    Loop
End Sub

注解

ZipPackage 是方法使用 Open 的默认包类型。

此方法 Open 使用默认属性 ReadWrite 打开包（ None 若要指定不同的属性，请使用其他 Open 方法重载之一）。

有关其他信息，请参阅可在以下位置 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/下载的开放打包约定（OPC）规范。

适用于

Open(Stream, FileMode, FileAccess)

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

打开具有给定 IO 流、文件模式和文件访问设置的包。

public:
 static System::IO::Packaging::Package ^ Open(System::IO::Stream ^ stream, System::IO::FileMode packageMode, System::IO::FileAccess packageAccess);

public static System.IO.Packaging.Package Open(System.IO.Stream stream, System.IO.FileMode packageMode, System.IO.FileAccess packageAccess);

static member Open : System.IO.Stream * System.IO.FileMode * System.IO.FileAccess -> System.IO.Packaging.Package

Public Shared Function Open (stream As Stream, packageMode As FileMode, packageAccess As FileAccess) As Package

参数

stream: Stream

打开包的 IO 流。

packageMode: FileMode

打开包的文件模式。

packageAccess: FileAccess

要在其中打开包的文件访问。

Package

打开的包。

例外

ArgumentNullException

stream 是 null。

ArgumentOutOfRangeException

或packageModepackageAccess无效的值。

IOException

要打开的包需要读取或读/写权限，并且指定的 stream 包是只读的;或者要打开的包需要写入或读/写权限，并且指定的 stream 是只读的。

注解

ZipPackage 是方法使用 Open 的默认包类型。

有关其他信息，请参阅可在以下位置 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/下载的开放打包约定（OPC）规范。

适用于

Open(String, FileMode, FileAccess)

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

使用给定的文件模式和文件访问设置在给定路径处打开包。

public:
 static System::IO::Packaging::Package ^ Open(System::String ^ path, System::IO::FileMode packageMode, System::IO::FileAccess packageAccess);

public static System.IO.Packaging.Package Open(string path, System.IO.FileMode packageMode, System.IO.FileAccess packageAccess);

static member Open : string * System.IO.FileMode * System.IO.FileAccess -> System.IO.Packaging.Package

Public Shared Function Open (path As String, packageMode As FileMode, packageAccess As FileAccess) As Package

参数

path: String

包的路径和文件名。

packageMode: FileMode

打开包的文件模式。

packageAccess: FileAccess

要在其中打开包的文件访问。

Package

打开的包。

例外

ArgumentNullException

path 是 null。

ArgumentOutOfRangeException

packageMode值为或packageAccess无效。

示例

以下示例演示如何打开和读取 Package 包含 PackageRelationship 和 PackagePart 元素以及存储的数据。

// 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.

注解

ZipPackage 是方法使用 Open 的默认包类型。

此方法 Open 使用默认 None 属性打开包（若要指定其他属性，请使用 Open 方法重载）。

有关其他信息，请参阅可在以下位置 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/下载的开放打包约定（OPC）规范。

适用于

Open(String, FileMode, FileAccess, FileShare)

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

Source:: Package.cs

使用给定的文件模式、文件访问和文件共享设置在给定路径处打开包。

public:
 static System::IO::Packaging::Package ^ Open(System::String ^ path, System::IO::FileMode packageMode, System::IO::FileAccess packageAccess, System::IO::FileShare packageShare);

public static System.IO.Packaging.Package Open(string path, System.IO.FileMode packageMode, System.IO.FileAccess packageAccess, System.IO.FileShare packageShare);

static member Open : string * System.IO.FileMode * System.IO.FileAccess * System.IO.FileShare -> System.IO.Packaging.Package

Public Shared Function Open (path As String, packageMode As FileMode, packageAccess As FileAccess, packageShare As FileShare) As Package

参数

path: String

包的路径和文件名。

packageMode: FileMode

打开包的文件模式。

packageAccess: FileAccess

要在其中打开包的文件访问。

packageShare: FileShare

打开包的文件共享模式。

Package

打开的包。

例外

ArgumentNullException

path 是 null。

ArgumentOutOfRangeException

或无效的值packageModepackageAccesspackageShare。

示例

以下示例演示如何创建一个包含Package和PackageRelationship元素以及存储数据的新PackagePart元素。

//  -------------------------- CreatePackage --------------------------
/// <summary>
///   Creates a package zip file containing specified
///   content and resource files.</summary>
private static void CreatePackage()
{
    // Convert system path and file names to Part URIs. In this example
    // Uri partUriDocument /* /Content/Document.xml */ =
    //     PackUriHelper.CreatePartUri(
    //         new Uri("Content\Document.xml", UriKind.Relative));
    // Uri partUriResource /* /Resources/Image1.jpg */ =
    //     PackUriHelper.CreatePartUri(
    //         new Uri("Resources\Image1.jpg", UriKind.Relative));
    Uri partUriDocument = PackUriHelper.CreatePartUri(
                              new Uri(documentPath, UriKind.Relative));
    Uri partUriResource = PackUriHelper.CreatePartUri(
                              new Uri(resourcePath, UriKind.Relative));

    // Create the Package
    // (If the package file already exists, FileMode.Create will
    //  automatically delete it first before creating a new one.
    //  The 'using' statement insures that 'package' is
    //  closed and disposed when it goes out of scope.)
    using (Package package =
        Package.Open(packagePath, FileMode.Create))
    {
        // Add the Document part to the Package
        PackagePart packagePartDocument =
            package.CreatePart(partUriDocument,
                           System.Net.Mime.MediaTypeNames.Text.Xml);

        // Copy the data to the Document Part
        using (FileStream fileStream = new FileStream(
               documentPath, FileMode.Open, FileAccess.Read))
        {
            CopyStream(fileStream, packagePartDocument.GetStream());
        }// end:using(fileStream) - Close and dispose fileStream.

        // Add a Package Relationship to the Document Part
        package.CreateRelationship(packagePartDocument.Uri,
                                   TargetMode.Internal,
                                   PackageRelationshipType);

        // Add a Resource Part to the Package
        PackagePart packagePartResource =
            package.CreatePart(partUriResource,
                           System.Net.Mime.MediaTypeNames.Image.Jpeg);

        // Copy the data to the Resource Part
        using (FileStream fileStream = new FileStream(
               resourcePath, FileMode.Open, FileAccess.Read))
        {
            CopyStream(fileStream, packagePartResource.GetStream());
        }// end:using(fileStream) - Close and dispose fileStream.

        // Add Relationship from the Document part to the Resource part
        packagePartDocument.CreateRelationship(
                                new Uri(@"../resources/image1.jpg",
                                UriKind.Relative),
                                TargetMode.Internal,
                                ResourceRelationshipType);
    }// end:using (Package package) - Close and dispose package.
}// end:CreatePackage()

//  --------------------------- CopyStream ---------------------------
/// <summary>
///   Copies data from a source stream to a target stream.</summary>
/// <param name="source">
///   The source stream to copy from.</param>
/// <param name="target">
///   The destination stream to copy to.</param>
private static void CopyStream(Stream source, Stream target)
{
    const int bufSize = 0x1000;
    byte[] buf = new byte[bufSize];
    int bytesRead = 0;
    while ((bytesRead = source.Read(buf, 0, bufSize)) > 0)
        target.Write(buf, 0, bytesRead);
}// end:CopyStream()

'  -------------------------- CreatePackage --------------------------
''' <summary>
'''   Creates a package zip file containing specified
'''   content and resource files.</summary>
Private Shared Sub CreatePackage()
    ' Convert system path and file names to Part URIs. In this example
    ' Dim partUriDocument as Uri /* /Content/Document.xml */ =
    '     PackUriHelper.CreatePartUri(
    '         New Uri("Content\Document.xml", UriKind.Relative))
    ' Dim partUriResource as Uri /* /Resources/Image1.jpg */ =
    '     PackUriHelper.CreatePartUri(
    '         New Uri("Resources\Image1.jpg", UriKind.Relative))
    Dim partUriDocument As Uri = PackUriHelper.CreatePartUri(New Uri(documentPath, UriKind.Relative))
    Dim partUriResource As Uri = PackUriHelper.CreatePartUri(New Uri(resourcePath, UriKind.Relative))

    ' Create the Package
    ' (If the package file already exists, FileMode.Create will
    '  automatically delete it first before creating a new one.
    '  The 'using' statement insures that 'package' is
    '  closed and disposed when it goes out of scope.)
    Using package As Package = Package.Open(packagePath, FileMode.Create)
        ' Add the Document part to the Package
        Dim packagePartDocument As PackagePart = package.CreatePart(partUriDocument, System.Net.Mime.MediaTypeNames.Text.Xml)

        ' Copy the data to the Document Part
        Using fileStream As New FileStream(documentPath, FileMode.Open, FileAccess.Read)
            CopyStream(fileStream, packagePartDocument.GetStream())
        End Using ' end:using(fileStream) - Close and dispose fileStream.

        ' Add a Package Relationship to the Document Part
        package.CreateRelationship(packagePartDocument.Uri, TargetMode.Internal, PackageRelationshipType)

        ' Add a Resource Part to the Package
        Dim packagePartResource As PackagePart = package.CreatePart(partUriResource, System.Net.Mime.MediaTypeNames.Image.Jpeg)

        ' Copy the data to the Resource Part
        Using fileStream As New FileStream(resourcePath, FileMode.Open, FileAccess.Read)
            CopyStream(fileStream, packagePartResource.GetStream())
        End Using ' end:using(fileStream) - Close and dispose fileStream.

        ' Add Relationship from the Document part to the Resource part
        packagePartDocument.CreateRelationship(New Uri("../resources/image1.jpg", UriKind.Relative), TargetMode.Internal, ResourceRelationshipType)

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

End Sub


'  --------------------------- CopyStream ---------------------------
''' <summary>
'''   Copies data from a source stream to a target stream.</summary>
''' <param name="source">
'''   The source stream to copy from.</param>
''' <param name="target">
'''   The destination stream to copy to.</param>
Private Shared Sub CopyStream(ByVal source As Stream, ByVal target As Stream)
    Const bufSize As Integer = &H1000
    Dim buf(bufSize - 1) As Byte
    Dim bytesRead As Integer = 0
    bytesRead = source.Read(buf, 0, bufSize)
    Do While bytesRead > 0
        target.Write(buf, 0, bytesRead)
        bytesRead = source.Read(buf, 0, bufSize)
    Loop
End Sub

注解

ZipPackage 是方法使用 Open 的默认包类型。

有关其他信息，请参阅可在以下位置 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/下载的开放打包约定（OPC）规范。

适用于

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Package.Open 方法

定义

重载

示例

注解

Open(Stream)

参数

返回

例外

注解

适用于

Open(String)

参数

返回

例外

示例

注解

适用于

Open(Stream, FileMode)

参数

返回

例外

注解

适用于

Open(String, FileMode)

参数

返回

例外

示例

注解

适用于

Open(Stream, FileMode, FileAccess)

参数

返回

例外

注解

适用于

Open(String, FileMode, FileAccess)

参数

返回

例外

示例

注解

适用于

Open(String, FileMode, FileAccess, FileShare)

参数

返回

例外

示例

注解

适用于

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