XpsSignatureDefinition.SpotId 属性

定义

命名空间:

System.Windows.Xps.Packaging

程序集:

ReachFramework.dll

获取或设置此 XpsSignatureDefinition 的唯一标识符。

public:
 property Nullable<Guid> SpotId { Nullable<Guid> get(); void set(Nullable<Guid> value); };

public Guid? SpotId { get; set; }

member this.SpotId : Nullable<Guid> with get, set

Public Property SpotId As Nullable(Of Guid)

属性值

Nullable<Guid>

表示签名定义的 ID 的 (Nullable) Guid 。 默认值是 null。

示例

下面的示例演示如何设置此属性。

private void SignatureDefinitionCommandHandler(object sender, RoutedEventArgs e)
{
    SignatureDefinition sigDefDialog = new SignatureDefinition();
    if (sigDefDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
    {
        XpsSignatureDefinition signatureDefinition = new XpsSignatureDefinition();
        signatureDefinition.RequestedSigner = sigDefDialog.RequestedSigner.Text;
        signatureDefinition.Intent = sigDefDialog.Intent.Text;
        signatureDefinition.SigningLocale = sigDefDialog.SigningLocale.Text;
        try
        {
            signatureDefinition.SignBy = DateTime.Parse(sigDefDialog.SignBy.Text);
        }
        catch (FormatException)
        {
        }
        signatureDefinition.SpotId = Guid.NewGuid();
        IXpsFixedDocumentSequenceReader docSeq = _xpsDocument.FixedDocumentSequenceReader; //_xpsDocument is type System.Windows.Xps.Packaging.XpsDocument
        IXpsFixedDocumentReader doc = docSeq.FixedDocuments[0];
        doc.AddSignatureDefinition(signatureDefinition);
        doc.CommitSignatureDefinition();
        InitializeSignatureDisplay();
    }
}

Private Sub SignatureDefinitionCommandHandler(sender As Object, e As RoutedEventArgs)
    Using sigDefDialog As New SignatureDefinition()
        If sigDefDialog.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
            Dim signatureDefinition As New XpsSignatureDefinition With {
                .RequestedSigner = sigDefDialog.RequestedSigner.Text,
                .Intent = sigDefDialog.Intent.Text,
                .SigningLocale = sigDefDialog.SigningLocale.Text
            }
            Try
                signatureDefinition.SignBy = Date.Parse(sigDefDialog.SignBy.Text)
            Catch e1 As FormatException
            End Try
            signatureDefinition.SpotId = Guid.NewGuid()
            Dim docSeq As IXpsFixedDocumentSequenceReader = _xpsDocument.FixedDocumentSequenceReader '_xpsDocument is type System.Windows.Xps.Packaging.XpsDocument
            Dim doc As IXpsFixedDocumentReader = docSeq.FixedDocuments(0)
            doc.AddSignatureDefinition(signatureDefinition)
            doc.CommitSignatureDefinition()
            InitializeSignatureDisplay()
        End If
    End Using
End Sub

注解

若要将Signature元素链接到此 XpsSignatureDefinition，必须将 的 Signature 属性设置为 Id 属性的值SpotId。 有关元素的详细信息 Signature ，请参阅 开放打包约定 架构。

有关 XML 纸张规范 (XPS) 包中元素的属性SignatureDefinition的详细信息SpotID，请参阅 XML 纸张规范 (XPS) 规范中的第 10 章，可在 XPS：规范和许可证下载中获取。