SignEventObject Interface

Definition

Namespace:

Microsoft.Office.Interop.InfoPath

Assembly:

Microsoft.Office.Interop.InfoPath.dll

An event object that is used during the OnSignevent.

public interface class SignEventObject : Microsoft::Office::Interop::InfoPath::SignEvent

[System.Runtime.InteropServices.Guid("096CD71D-0786-11D1-95FA-0080C78EE3BB")]
public interface SignEventObject : Microsoft.Office.Interop.InfoPath.SignEvent

type SignEventObject = interface
    interface SignEvent

Public Interface SignEventObject
Implements SignEvent

Derived

Microsoft.Office.Interop.InfoPath.SignEventObjectClass

Attributes

GuidAttribute

Implements

SignEvent

Examples

In the following example, the SignEvent object is used to add a signature and timestamp to a SignedDataBlockObject object:

public void OnSign(<span class="label">SignEvent</span> e)
{
    Signature signature = e.SignedDataBlock.Signatures.Create();
    signature.Sign();
    // Countersign the signature with a trusted timestamp.
    // Get the XML node storing the signature block.
    IXMLDOMNode oNodeSig = signature.SignatureBlockXmlNode;
    IXMLDOMNode oNodeSigValue = oNodeSig.selectSingleNode(".//*[local-name(.)=’signatureValue’]");
    // Get time stamp from timestamp service (fictitious).
    MyTrustedTimeStampingService s = new MyTrustedTimeStampingService();
    string strVerifiedTimeStamp = s.AddTimeStamp(oNodeSigValue.text);

    //Add the value returned from the timestamping service to the 
    //unsigned part of the signature block.
    IXMLDOMNode oNodeObj = oNodeSig.selectSingleNode(".//*[local-name(.)=’Object’]");
    IXMLDOMNode oNode = oNodeObj.cloneNode(false);
    oNode.text = strVerifiedTimeStamp;
    oNodeObj.parentNode.appendChild(oNode);
    e.ReturnStatus = true;
}

Remarks

This type is a wrapper for a coclass that is required by managed code for COM interoperability. Use this type to access the members of the COM interface implemented by this coclass. For information about the COM interface, including a link to descriptions of its members, seeSignEvent.

Use the SignedDataBlock property of the SignedDataBlockObject object to determine which set of data, which can be signed, is triggering the OnSign event. The OnSign event can be customized for a fully trusted form template only.

Properties

ReturnStatus	Gets or sets the return status of the OnSign event. (Inherited from SignEvent)
SignedDataBlock	Gets the set of data which can be signed that triggered the OnSign event. (Inherited from SignEvent)
XDocument	Gets a reference to the XDocument object associated with the OnSign event. (Inherited from SignEvent)