Windows 8開發入門（十四） windows 8中粘貼板(剪下板)的使用

在Windows 8中我們的粘貼板分別儲存4種資訊：文本、圖片、網頁、檔案。在本文中我們將分別複製和粘 貼這4種元素，當然你也可以在外部複製這4種元素，然後在程式中粘貼出來。

DataPackage：包含使用者 希望與另一個應用程式交換的資料

//設定一個中轉變數儲存使用者的值       DataPackage dp = new DataPackage();

第一：我們來看看複製和粘貼文本的幕後處理代碼 。

//<!--複製文本-->        private void CopyText_Click(object sender, RoutedEventArgs e)        {            dp.SetText(this.SourceText.Text);            Clipboard.SetContent(dp);        }        //<!--粘貼文本-->        private async void PasteText_Click(object sender, RoutedEventArgs e)        {            var ClipBoardData = Clipboard.GetContent();            if (ClipBoardData.Contains(StandardDataFormats.Text))            {                this.TargetText.Text = await ClipBoardData.GetTextAsync();            }        }

第二：複製和粘貼圖片幕後處理代碼

//<!--複製圖片-->        private async void CopyImage_Click(object sender, RoutedEventArgs e)        {            Uri uri = new Uri("ms-appx:///Assets/iphone0426_006.jpg");            StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(uri);            dp.SetBitmap(RandomAccessStreamReference.CreateFromFile(file));            Clipboard.SetContent(dp);        }        //<!--粘貼圖片-->        private async void PasteImage_Click(object sender, RoutedEventArgs e)        {            var ClipBoardData = Clipboard.GetContent();            if (ClipBoardData.Contains(StandardDataFormats.Bitmap))            {                RandomAccessStreamReference img = await ClipBoardData.GetBitmapAsync();                var imgstream = await img.OpenReadAsync();                BitmapImage bitmap = new BitmapImage();                bitmap.SetSource(imgstream);                this.TargetImage.Source = bitmap;            }        }

第三：複製和粘貼HTML的幕後處理代碼

//<!--複製HTML-->        private void CopyHtml_Click(object sender, RoutedEventArgs e)        {            string html = HtmlFormatHelper.CreateHtmlFormat(this.SourceHtml.InvokeScript("eval",                 new string[] { "document.documentElement.outerHTML;" }));            dp.SetHtmlFormat(html);            Clipboard.SetContent(dp);        }        //<!--粘貼HTML-->        private async void PasteHtml_Click(object sender, RoutedEventArgs e)        {            var ClipBoardData = Clipboard.GetContent();            if (ClipBoardData.Contains(StandardDataFormats.Html))            {                string html = await ClipBoardData.GetHtmlFormatAsync();                this.TargetHtml.NavigateToString(html);            }        }

第四：複製和粘貼檔案的幕後處理代碼

//<!--複製檔案-->        private async void CopyFile_Click(object sender, RoutedEventArgs e)        {            Uri uri1 = new Uri("ms-appx:///Assets/iphone0426_006.jpg");            StorageFile file1 = await StorageFile.GetFileFromApplicationUriAsync(uri1);            Uri uri2 = new Uri("ms-appx:///Assets/iphone0426_010.jpg");            StorageFile file2 = await StorageFile.GetFileFromApplicationUriAsync(uri2);            List<StorageFile> filelist = new List<StorageFile>();            filelist.Add(file1);            filelist.Add(file2);            dp.SetStorageItems(filelist);            Clipboard.SetContent(dp);        }        //<!--粘貼檔案-->        private async void PasteFile_Click(object sender, RoutedEventArgs e)        {            var ClipBoardData = Clipboard.GetContent();            this.TargetFile.Text = "";            if (ClipBoardData.Contains(StandardDataFormats.StorageItems))            {                var filelist = await ClipBoardData.GetStorageItemsAsync();                foreach (StorageFile sfile in filelist)                {                    StorageFile storageFileCopy = await sfile.CopyAsync(KnownFolders.DocumentsLibrary,                         sfile.Name,NameCollisionOption.ReplaceExisting);                    this.TargetFile.Text += sfile.Name + "檔案粘貼一份到“庫\\文檔\\" + sfile.Name+"\r";                }            }        }