C# DataTransfer.DataRequestedEventArgs类代码示例

        private void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs e)
        {
            // Get the user's selection from the WebView.
            DataPackage requestData = ShareWebView.DataTransferPackage;
            DataPackageView dataPackageView = requestData.GetView();

            if ((dataPackageView != null) && (dataPackageView.AvailableFormats.Count > 0))
            {
                string dataPackageTitle = TitleInputBox.Text;

                // The title is required.
                if (!String.IsNullOrEmpty(dataPackageTitle))
                {
                    requestData.Properties.Title = dataPackageTitle;

                    // The description is optional.
                    string dataPackageDescription = DescriptionInputBox.Text;
                    if (dataPackageDescription != null)
                    {
                        requestData.Properties.Description = dataPackageDescription;
                    }
                    e.Request.Data = requestData;
                }
                else
                {
                    e.Request.FailWithDisplayText(MainPage.MissingTitleError);
                }
            }
            else
            {
                e.Request.FailWithDisplayText("Make a selection in the HTML fragment and try again.");
            }
        }

        private void ShareTextHandler(DataTransferManager sender, DataRequestedEventArgs e)
        {
            try
            {
                DataRequest request = e.Request;
                // The Title is mandatory
#if WINDOWS_UWP
                request.Data.Properties.Title = title ?? Windows.ApplicationModel.Package.Current.DisplayName;
#elif WINDOWS_APP
                request.Data.Properties.Title = title ?? Windows.ApplicationModel.Package.Current.DisplayName;
#else
                request.Data.Properties.Title = title ?? string.Empty;

#endif

                if (!string.IsNullOrWhiteSpace(url))
                {
                  
                    request.Data.SetWebLink(new Uri(url));

                }
                request.Data.SetText(text ?? string.Empty);
            }
            catch(Exception ex)
            {
                Debug.WriteLine("Unable to share text: " + ex);
            }
        }

 private void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs args)
 {
     var loader = new Windows.ApplicationModel.Resources.ResourceLoader();
     args.Request.Data.SetText(
         $"{loader.GetString("SendMeFriendRequest/Text")} {_link} {Environment.NewLine} {loader.GetString("SentFromPlayStationApp/Text")}");
     args.Request.Data.Properties.Title = loader.GetString("InviteFriendsToPsn/Text");
 }

        private async void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs args)
        {
            var vm = ((DashboardViewModel) DataContext);
            if ( vm.SelectedItem == null)
            {
                args.Request.FailWithDisplayText("You have not selected an item to share");
            }
            else
            {
                var deferral = args.Request.GetDeferral();
                var dataPackage = args.Request.Data;
                var propertySet = dataPackage.Properties;

                propertySet.Title = vm.SelectedItem.Name;
                propertySet.Description = vm.SelectedItem.ShortDescription;
                
                //ShareText(dataPackage, vm.SelectedItem.Name);

                //ShareUrl(dataPackage, "http://www.espn.com");

                await ShareFileAsync(vm, dataPackage, propertySet);

                deferral.Complete();
            }
        }

        private async void ShareStorageItemsHandler(DataTransferManager sender,
            DataRequestedEventArgs e)
        {
            var request = e.Request;
            request.Data.Properties.Title = AppResourcesHelper.Get("Export_FileTitle");
            request.Data.Properties.Description = ApplicationResourcesHelper.Get("CATROBAT_URL");
            var deferral = request.GetDeferral();

            try
            {
                var rootFolder = ApplicationData.Current.LocalFolder;
                var fileToShare = await rootFolder.GetFileAsync(_pathToShareFile);
                var storageItems = new List<IStorageItem> { fileToShare };
                request.Data.SetStorageItems(storageItems);
            }
            catch
            {
                if (Debugger.IsAttached)
                    Debugger.Break();
            }
            finally
            {
                deferral.Complete();
            }
        }

 private void ShareLinkHandler(DataTransferManager sender, DataRequestedEventArgs e)
 {
     DataRequest request = e.Request;
     request.Data.Properties.Title = "Title";
     request.Data.Properties.Description = "Description";
     request.Data.SetWebLink(new Uri(""+ Windows.ApplicationModel.Store.CurrentApp.LinkUri));
 }

 void BlankPage_DataRequested(DataTransferManager sender, DataRequestedEventArgs args)
 {
     var request = args.Request;
     request.Data.Properties.Title = App.ViewModel.SelectedDocument.GetDisplayName();
     request.Data.Properties.Description = string.Format("Created {0}", App.ViewModel.SelectedDocument.GetCreatedDate().ToString("g"));
     request.Data.SetText(_GetCurrentDocumentText());
 }

        private void DataRequested(DataTransferManager sender, DataRequestedEventArgs e)
        {
            DataRequest request = e.Request;
            request.Data.Properties.Title = "كلام جرايد";

            request.Data.SetText("يقوم هذا البرنامج بتجميع الأخبار من مصادر متنوعة و تقسيمه حسب نوعه ويقوم بعرض العناوين الأخبار فى الصفحة الرئيسية و يقوم ايضا بعرض الخبر كامل من مصدره" + "\n" + (new Uri("ms-windows-store:navigate?appid=" + CurrentApp.AppId)).ToString());
        }

		private void dataTransferManager_DataRequested(DataTransferManager sender, DataRequestedEventArgs args)
		{
			if (OnShareRequested != null)
			{
				OnShareRequested(args.Request.Data);
			}
		}

        private void PageExplorerDataRequested(DataTransferManager sender,
           DataRequestedEventArgs args)
        {
            DataPackage data = args.Request.Data;

            DataRequestDeferral waiter = args.Request.GetDeferral();
            try
            {
                List<IStorageItem> files = new List<IStorageItem>();
                int index = 0;
                foreach (var item in itemGridView.SelectedItems)
                {
                    ExplorerItem explorerItem = (ExplorerItem)item;
                    if (explorerItem != null)
                    {
                        if (index == 0)
                        {
                            data.Properties.Title = explorerItem.Name;
                            RandomAccessStreamReference image = RandomAccessStreamReference.CreateFromFile(explorerItem.StorageFile);
                            data.Properties.Thumbnail = image;
                            data.SetBitmap(image);
                        }
                        files.Add(explorerItem.StorageFile);
                    }
                    index++;
                }
                data.SetStorageItems(files);
                data.SetText("\n");
            }
            finally
            {
                waiter.Complete();
            }
        }

 private void DataTransferManager_DataRequested(DataTransferManager sender, DataRequestedEventArgs args)
 {
     DataRequest request = args.Request;
     var currentImage = dataContext.AlbumItem.AlbumImages[dataContext.SelectedIndex];
     request.Data.Properties.Title = currentImage.Title ?? dataContext.AlbumItem.Title;
     request.Data.SetWebLink(new Uri(currentImage.Link));
 }

 /// <summary>
 /// This is the text handler for the sharing purposes.
 /// </summary>
 /// <param name="sender">Object Sender is a parameter called Sender that contains a reference to the control/object that raised the event.</param>
 /// <param name="e">DataRequestedEventArgs e is a parameter called e that contains the event data, see the DataRequestedEventArgs MSDN page for more information.</param>
 public static void ShareTextHandler(DataTransferManager sender, DataRequestedEventArgs e)
 {
     DataRequest request = e.Request;
     request.Data.Properties.Title = "BuildmLearn Store";
     request.Data.Properties.Description = "BuildmLearn Store Share";
     request.Data.SetText("Share Text");
 }

        // *** Private Methods ***

        private async void DataTransferManager_DataRequested(DataTransferManager sender, DataRequestedEventArgs args)
        {
            DataRequestDeferral deferral = args.Request.GetDeferral();
            IShareRequest shareRequest = new ShareRequest(args.Request);
            await ShareRequested(shareRequest);
            deferral.Complete();
        }

 protected override void DataRequested(DataTransferManager sender, DataRequestedEventArgs args)
 {
     VideoItem vi = (this.DataContext as VideoItem);
     args.Request.Data.Properties.Title = vi.Name;
     args.Request.Data.Properties.Description = vi.Description;
     args.Request.Data.SetUri(vi.KhanPath);
 }

 void DataTransferManager_DataRequested(DataTransferManager sender, DataRequestedEventArgs e)
 {
     if (_dataRequested != null)
     {
         _dataRequested((DataTransferManager)sender, new SettableDataRequestedEventArgs(e));
     }
 }