I have an application in silverlight 5. I use c1datagrid in our application. I want to drag and drop items from Desktop to our c1datagrid rows and while doing that I want to highlight that particular row in which I am dropping.
One can Drag and drop in a silverlight application. Check "Require Elevated permissions" in silverlight project properties and using drop event of silverlight datagrid one can handle the drag and drop from desktop in a silverlight datagrid provided its not an OOB silverlight application.
private void DocumentsDrop(object sender, DragEventArgs e)
{
e.Handled = true;
var point = e.GetPosition(null);
var dataGridRow = ExtractDataGridRow(point);
if(dataGridRow !=null)
{.....
}
var droppedItems = e.Data.GetData(DataFormats.FileDrop) as FileInfo[];
if (droppedItems != null)
{
var droppedDocumentsList = new List<FileInfo>();
foreach (var droppedItem in droppedItems)
{
if ((droppedItem.Attributes & FileAttributes.Directory) == FileAttributes.Directory)
{
var directory = new DirectoryInfo(droppedItem.FullName);
droppedDocumentsList.AddRange(directory.EnumerateFiles("*", SearchOption.AllDirectories));
}
else
{
droppedDocumentsList.Add(droppedItem);
}
}
if (droppedDocumentsList.Any())
{
ProcessFiles(droppedDocumentsList);
}
else
{
DisplayErrorMessage("The selected folder is empty.");
}
}
}
Set AllowDrop =true; in xaml for the datagrid. From the DragEventArgs extract the information as FileInfo Object.
You cannot perform drag and drop operations from desktop to a silverlight application. It is a technological limitation.
Related
I´m developing a windows 8 store app in c# and xaml for a website(the website is in .net mvc 4) .In the web site i can create, edit, and delete products (i´m using sql server 2008 r2).
In my w8 app i call a wcf service to get the data and populate the items.
I wanted to know if there is a way to notify or update the data in the w8 app after someone create or edit a product through the website.
One of the posible solution that i thought, was call the wcf service every time that the user click to see the list of products but i dont think is a good practice.
Here is my code:
//App.xaml.cs
protected override async void OnLaunched(LaunchActivatedEventArgs args)
{
ServiceProduct serviceData = (ServiceProduct)App.Current.Resources["serviceProducts"];
if (serviceData != null)
{
if (serviceData.ListaIos.Count == 0)
{
try
{
await serviceData.GetListProductsAsync();
}
catch(ServiceException)
{
var messageDialog = new Windows.UI.Popups.MessageDialog("Error");
var result = messageDialog.ShowAsync();
}
}
}
*** code ***
}
//Items page
protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)
{
// TODO: Assign a bindable collection of items to this.DefaultViewModel["Items"]
ServiceProduct serviceData = (ServiceProduct)App.Current.Resources["serviceProducts"];
if (serviceData != null)
{
this.DefaultViewModel["Items"] = serviceData.GetProducts;
}
}
public async Task GetListProductsAsync()
{
ProductServiceClient service = new ProductServiceClient();
Product product;
try
{
var wcfCall = await service.GetListaAsync();
foreach (var item in wcfCall.List)
{
map product
this.ListaIos.Add(product);
}
}
catch(Exception)
{
throw new NotImplementedException();
}
}
I want to create Application Bar dynamically in Windows Phone 8. I have used the following code to create application bar in appbar.cs file
class AppBar
{
public AppBar()
{
ApplicationBar appbar;
this.appbar = new ApplicationBar();
this.appbar.IsVisible = true;
this.appbar.Opacity = 1;
this.appbar.Mode = ApplicationBarMode.Minimized;
ApplicationBarIconButton appButon = new ApplicationBarIconButton();
appButon.IconUri = new Uri("/images/show.png", UriKind.Relative);
appButon.Text = "Show";
this.appbar.Buttons.Add(appButon);
appButon.Click += appButon_Click;
}
}
void appButon_Click(object sender, EventArgs e)
{
}
}
If i have created the instance of AppBar class, then all the methods called but i unable to see the application bar. I have given request to create the appbar from webview. From the javainterface i have created the instance of application bar with the given text and icon. How to show this in the web page.
I have solved the my Application bar issue. Added my application bar with parent element(PhoneApplicationPage).
class AppBar
{
public AppBar()
{
ApplicationBar appbar;
PhoneApplicationPage parentpage = (Application.Current.RootVisual as ContentControl).Content as PhoneApplicationPage;
parentpage.ApplicationBar = new ApplicationBar();
appbar = parentpage.ApplicationBar;
appbar.IsVisible = true;
appbar.Opacity = 1;
appbar.Mode = ApplicationBarMode.Minimized;
ApplicationBarIconButton appButon = new ApplicationBarIconButton();
appButon.IconUri = new Uri("/images/show.png", UriKind.Relative);
appButon.Text = "Show";
appbar.Buttons.Add(appButon);
appButon.Click += appButon_Click;
}
}
void appButon_Click(object sender, EventArgs e)
{
}
}
I am working on a Windows 8 metro app and having multiple SettingsFlyout items which get added by below mentioned code
SettingsCommand cmd1 = new SettingsCommand("sample", "Color Settings", (x) =>
{
// create a new instance of the flyout
SettingsFlyout settings = new SettingsFlyout();
// set the desired width. If you leave this out, you will get Narrow (346px)
// optionally change header and content background colors away from defaults (recommended)
// if using Callisto's AppManifestHelper you can grab the element from some member var you held it in
// settings.HeaderBrush = new SolidColorBrush(App.VisualElements.BackgroundColor);
settings.HeaderBrush = new SolidColorBrush(Colors.Black);
settings.HeaderText = string.Format("Color Settings", App.VisualElements.DisplayName);
settings.Background = new SolidColorBrush(_background);
settings.Margin = new Thickness(0);
// provide some logo (preferrably the smallogo the app uses)
BitmapImage bmp = new BitmapImage(App.VisualElements.SmallLogoUri);
settings.SmallLogoImageSource = bmp;
// set the content for the flyout
settings.Content = new ColorSettings();
settings.HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Stretch;
// open it
settings.IsOpen = true;
// this is only for the test app and not needed
// you would not use this code in your real app
// ObjectTracker.Track(settings);
});
Currently using (SettingsPane.Show()) i can be able to show the added flyout items list but I want to programmatically open any setting Flyout item instead of opening a flyout list.
Create a new class
public class SettingsFlyout
{
private const int _width = 346;
private Popup _popup;
/// <summary>
/// Show the Flyout with the UserControl as content
/// </summary>
/// <param name="control"></param>
public void ShowFlyout(UserControl control)
{
_popup = new Popup();
_popup.Closed += OnPopupClosed;
Window.Current.Activated += OnWindowActivated;
_popup.IsLightDismissEnabled = true;
_popup.Width = _width;
_popup.Height = Window.Current.Bounds.Height;
control.Width = _width;
control.Height = Window.Current.Bounds.Height;
_popup.Child = control;
_popup.SetValue(Canvas.LeftProperty, Window.Current.Bounds.Width - _width);
_popup.SetValue(Canvas.TopProperty, 0);
_popup.IsOpen = true;
}
private void OnWindowActivated(object sender, Windows.UI.Core.WindowActivatedEventArgs e)
{
if (e.WindowActivationState == Windows.UI.Core.CoreWindowActivationState.Deactivated)
{
_popup.IsOpen = false;
}
}
void OnPopupClosed(object sender, object e)
{
Window.Current.Activated -= OnWindowActivated;
}
}
In a XAML page take a button and then write the button click event.
private void Button_Click_1(object sender, RoutedEventArgs e)
{
SettingsFlyout flyout = new SettingsFlyout();
flyout.ShowFlyout(new FlyoutContentUserControl());
}
Please note one thing FlyoutContentUserControl is the user control which you would like to show.
Credits goes to Q42.WinRT
The code you posted registers a SettingsCommands to the system settings pane. When your command is invoked from the system settings pane, you new up a SettingsFlyout instance and set IsOpen=True on it.
You just need to refactor this code to a separate method (e.g. ShowColorSettingsFlyout()), and also call that method from your Button.Click event handler. You can create a new Callisto SettingsFlyout and set IsOpen=True on it anywhere.
In App.xaml.cs add the following to register your SettingsFlyout e.g. CustomSetting ...
protected override void OnWindowCreated(WindowCreatedEventArgs args)
{
SettingsPane.GetForCurrentView().CommandsRequested += OnCommandsRequested;
}
private void OnCommandsRequested(SettingsPane sender, SettingsPaneCommandsRequestedEventArgs args)
{
args.Request.ApplicationCommands.Add(new SettingsCommand(
"Custom Setting", "Custom Setting", (handler) => ShowCustomSettingFlyout()));
}
public void ShowCustomSettingFlyout()
{
CustomSetting CustomSettingFlyout = new CustomSetting();
CustomSettingFlyout.Show();
}
Then anywhere in your code you want to programmatically open the CustomSetting flyout, call ShowCustomSettingFlyout, e.g. in the event handler for a button click...
void Button_Click_1(object sender, RoutedEventArgs e)
{
ShowCustomSettingFlyout()
}
Adapted from: Quickstart: Add app settings (XAML).
I have one text textbox in my Windows8 Store app (xaml) application and I want to make it shareable when user selects Share option from Charm settings ? Is that possible to in windows 8 store xaml app ?
Yes, you need to respond to the "DataRequested" event and add the content of the textbox to the data package. Here is a code sample:
JavaScript:
// Call this during initialization
function registerForShare() {
var dataTransferManager = Windows.ApplicationModel.DataTransfer.DataTransferManager.getForCurrentView();
dataTransferManager.addEventListener("datarequested", shareTextHandler);
}
function shareTextHandler(e) {
var request = e.request;
request.data.properties.title = "Your title";
request.data.properties.description = "Description of what you're sharing";
request.data.setText(yourTextBox.Text);
}
C#:
// Call this during initialization
private void ShareSourceLoad()
{
var dataTransferManager = DataTransferManager.GetForCurrentView();
dataTransferManager.DataRequested += DataRequested;
}
private void DataRequested(DataTransferManager sender, DataRequestedEventArgs e)
{
DataRequest request = e.Request;
request.Data.Properties.Title = "Your title";
request.Data.Properties.Description = "Description of what you're sharing";
request.Data.SetText(yourTextBox.Text);
}
I have an application that really makes no sense for snapped view, as the content generally represents A4 pages of information and data collection.
Is there a way to disable snapped view for the application, or is the recommended approach to just show the application icon, while in snapped mode?
You cannot disable snapped view.
Simply just create a new page and navigate to that page if a snap event occurred. You can simply display an image.
Window.Current.SizeChanged += (object sender, Windows.UI.Core.WindowSizeChangedEventArgs e) =>
{
ApplicationViewState myViewState = ApplicationView.Value;
if (myViewState == ApplicationViewState.Snapped)
{
//await SaveAssets();
this.Frame.Navigate(typeof(Snapped));
Snapped = true;
}
else if (myViewState != ApplicationViewState.Snapped)
{
if (Snapped)
{
this.Frame.Navigate(typeof(MainPage));
Snapped = false;
}
}
};
I really like Robert's solution. Based upon that, you can simulate disabling snapped view:
Window.Current.SizeChanged += async (object sender, WindowSizeChangedEventArgs e) =>
{
ApplicationViewState myViewState = ApplicationView.Value;
if (myViewState == ApplicationViewState.Snapped)
{
if (!ApplicationView.TryUnsnap())
{
MessageDialog dialog = new MessageDialog("Sorry, this App is unusable in snapped mode.");
await dialog.ShowAsync();
}
}
};