System.IO.Packaging.Package.PartExists C# (CSharp) Méthode

        public virtual bool PartExists(Uri partUri)
        {
            return GetPart(partUri) != null;
        }

        /// <summary>
        /// CertificatePart constructor
        /// </summary>
        internal CertificatePart(System.IO.Packaging.Package container, Uri partName)
        {
            if (container == null)
            {
                throw new ArgumentNullException("container");
            }

            if (partName == null)
            {
                throw new ArgumentNullException("partName");
            }

            partName = PackUriHelper.ValidatePartUri(partName);

            // create if not found
            if (container.PartExists(partName))
            {
                // open the part
                _part = container.GetPart(partName);

                // ensure the part is of the expected type
                if (_part.ValidatedContentType().AreTypeAndSubTypeEqual(_certificatePartContentType) == false)
                {
                    throw new FileFormatException(SR.CertificatePartContentTypeMismatch);
                }
            }
            else
            {
                // create the part
                _part = container.CreatePart(partName, _certificatePartContentType.ToString());
            }
        }