C# Database.Merge方法代码示例

        /// <summary>
        /// Validate a database.
        /// </summary>
        /// <param name="databaseFile">The database to validate.</param>
        /// <returns>true if validation succeeded; false otherwise.</returns>
        public bool Validate(string databaseFile)
        {
            Dictionary<string, string> indexedICEs = new Dictionary<string, string>();
            Dictionary<string, string> indexedSuppressedICEs = new Dictionary<string, string>();
            int previousUILevel = (int)InstallUILevels.Basic;
            IntPtr previousHwnd = IntPtr.Zero;
            InstallUIHandler previousUIHandler = null;

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

            // initialize the validator extension
            this.extension.DatabaseFile = databaseFile;
            this.extension.Output = this.output;
            this.extension.InitializeValidator();

            // if we don't have the temporary files object yet, get one
            if (null == this.tempFiles)
            {
                this.tempFiles = new TempFileCollection();
            }
            Directory.CreateDirectory(this.TempFilesLocation); // ensure the base path is there

            // index the ICEs
            if (null != this.ices)
            {
                foreach (string ice in this.ices)
                {
                    indexedICEs[ice] = null;
                }
            }

            // index the suppressed ICEs
            if (null != this.suppressedICEs)
            {
                foreach (string suppressedICE in this.suppressedICEs)
                {
                    indexedSuppressedICEs[suppressedICE] = null;
                }
            }

            // copy the database to a temporary location so it can be manipulated
            string tempDatabaseFile = Path.Combine(this.TempFilesLocation, Path.GetFileName(databaseFile));
            File.Copy(databaseFile, tempDatabaseFile);

            // remove the read-only property from the temporary database
            FileAttributes attributes = File.GetAttributes(tempDatabaseFile);
            File.SetAttributes(tempDatabaseFile, attributes & ~FileAttributes.ReadOnly);

            Mutex mutex = new Mutex(false, "WixValidator");
            try
            {
                if (!mutex.WaitOne(0))
                {
                    this.OnMessage(WixVerboses.ValidationSerialized());
                    mutex.WaitOne();
                }

                using (Database database = new Database(tempDatabaseFile, OpenDatabase.Direct))
                {
                    bool propertyTableExists = database.TableExists("Property");
                    string productCode = null;

                    // remove the product code from the database before opening a session to prevent opening an installed product
                    if (propertyTableExists)
                    {
                        using (View view = database.OpenExecuteView("SELECT `Value` FROM `Property` WHERE Property = 'ProductCode'"))
                        {
                            using (Record record = view.Fetch())
                            {
                                if (null != record)
                                {
                                    productCode = record.GetString(1);

                                    using (View dropProductCodeView = database.OpenExecuteView("DELETE FROM `Property` WHERE `Property` = 'ProductCode'"))
                                    {
                                    }
                                }
                            }
                        }
                    }

                    // merge in the cube databases
                    foreach (string cubeFile in this.cubeFiles)
                    {
                        try
                        {
                            using (Database cubeDatabase = new Database(cubeFile, OpenDatabase.ReadOnly))
                            {
                                try
                                {
                                    database.Merge(cubeDatabase, "MergeConflicts");
                                }
//.........这里部分代码省略.........