private void Initialize(XmlElement element) { this.m_containingDocument = (element == null) ? null : element.OwnerDocument; this.m_context = element; this.m_signature = new System.Security.Cryptography.Xml.Signature(); this.m_signature.SignedXml = this; this.m_signature.SignedInfo = new System.Security.Cryptography.Xml.SignedInfo(); this.m_signingKey = null; }