Microsoft.VisualStudio.Project.NativeMethods.IsSamePath C# (CSharp) Метод

        public static bool IsSamePath(string file1, string file2)
        {
            if(file1 == null || file1.Length == 0)
            {
                return (file2 == null || file2.Length == 0);
            }

            Uri uri1 = null;
            Uri uri2 = null;

            try
            {
                if(!Uri.TryCreate(file1, UriKind.Absolute, out uri1) || !Uri.TryCreate(file2, UriKind.Absolute, out uri2))
                {
                    return false;
                }

                if(uri1 != null && uri1.IsFile && uri2 != null && uri2.IsFile)
                {
                    return 0 == String.Compare(uri1.LocalPath, uri2.LocalPath, StringComparison.OrdinalIgnoreCase);
                }

                return file1 == file2;
            }
            catch(UriFormatException e)
            {
                Trace.WriteLine("Exception " + e.Message);
            }

            return false;
        }

        /// <summary>
        /// Checks if a reference is already added. The method parses all references and compares the Url.
        /// </summary>
        /// <param name="existingEquivalentNode">The existing reference, if one is found.</param>
        /// <returns>true if the assembly has already been added.</returns>
        protected internal virtual bool IsAlreadyAdded(out ReferenceNode existingEquivalentNode)
        {
            ReferenceContainerNode referencesFolder = this.ProjectMgr.FindChild(ReferenceContainerNode.ReferencesNodeVirtualName) as ReferenceContainerNode;

            Debug.Assert(referencesFolder != null, "Could not find the References node");

            for (HierarchyNode n = referencesFolder.FirstChild; n != null; n = n.NextSibling)
            {
                ReferenceNode referenceNode = n as ReferenceNode;
                if (null != referenceNode)
                {
                    // We check if the Url of the assemblies is the same.
                    if (NativeMethods.IsSamePath(referenceNode.Url, this.Url))
                    {
                        existingEquivalentNode = referenceNode;
                        return(true);
                    }
                }
            }

            existingEquivalentNode = null;
            return(false);
        }