SignedXml.LoadXml(XmlElement) Metod

Definition

Namnområde:

System.Security.Cryptography.Xml

Sammansättning:

System.Security.dll

Läser in ett SignedXml tillstånd från ett XML-element.

public:
 void LoadXml(System::Xml::XmlElement ^ value);

public void LoadXml(System.Xml.XmlElement value);

member this.LoadXml : System.Xml.XmlElement -> unit

Public Sub LoadXml (value As XmlElement)

Parametrar

value

XmlElement

XML-elementet som tillståndet ska läsas SignedXml in från.

Undantag

ArgumentNullException

Parametern value är null.

CryptographicException

Parametern value innehåller inte en giltig SignatureValue egenskap.

-eller-

Parametern value innehåller inte en giltig SignedInfo egenskap.

Exempel

Följande kodexempel visar hur du använder LoadXml metoden för att verifiera ett XML-dokument.

// Verify the signature of an XML file and return the result.
public static Boolean VerifyDetachedSignature(string XmlSigFileName)
{	
    // Create a new XML document.
    XmlDocument xmlDocument = new XmlDocument();

    // Load the passed XML file into the document.
    xmlDocument.Load(XmlSigFileName);

    // Create a new SignedXMl object.
    SignedXml signedXml = new SignedXml();

    // Find the "Signature" node and create a new
    // XmlNodeList object.
    XmlNodeList nodeList = xmlDocument.GetElementsByTagName("Signature");

    // Load the signature node.
    signedXml.LoadXml((XmlElement)nodeList[0]);

    // Check the signature and return the result.
    return signedXml.CheckSignature();
}

' Verify the signature of an XML file and return the result.
Public Shared Function VerifyDetachedSignature(XmlSigFileName As String) As [Boolean]
   ' Create a new XML document.
   Dim xmlDocument As New XmlDocument()
   
   ' Load the passed XML file into the document.
   xmlDocument.Load(XmlSigFileName)
   
   ' Create a new SignedXMl object.
   Dim signedXml As New SignedXml()
   
   ' Find the "Signature" node and create a new
   ' XmlNodeList object.
   Dim nodeList As XmlNodeList = xmlDocument.GetElementsByTagName("Signature")
   
   ' Load the signature node.
   signedXml.LoadXml(CType(nodeList(0), XmlElement))
   
   ' Check the signature and return the result.
   Return signedXml.CheckSignature()
End Function