I try to read/get those advanced settings values such as Put the computer to sleep on my UWP application and follow this article How to get the value of advanced power settings but in UWP it is not working because the example is only for Windows 8.1 and WPF.
Anybody have tried this kind of features in their application?
My goal only for this is to get the values from the corresponding settings.
I don't think it's easily achievable. There's no out of the box API exposed to retrieve such data. Not according to to this document at least.
I'm pretty sure you would need to deal with the native interoperability (aka DllImport). Check this post on how to retrieve this kind of data and use it as a guideline to retrieve data that you're interested in
Related
I am trying to make a quiz application for Windows Store using the blank app template (in VS2013). I have the UI laid out in XAML but I don't know how to fetch Questions saved in my DB (MS access or SQL).
I have tried to find tutorials related to it,but what I have found is for WPF and Windows Forms. I had chosen the Blank app template, so can anyone explain how to fetch question from the Database in an application using Blank app template?
As it turns out, there's a good reason you couldn't find a tutorial for accessing a local DB in the WinRT environment. You can't. Microsoft didn't even include the requistite ADO.NET assemblies, assuming you could get out of the sandbox in order to connect.
There is a SQLLite project for Windows Store apps, found here. That's about as good as you can get it right now in terms of a local relational database in a windows store app.
What Microsoft intended for you to do was to store your database in the cloud (and if they have their way, on Microsoft Azure) and access it using a web service. Support for that is all over the WinRT API. It sounds like thats probably what you want anyways (unless you expect your users to generate their own questions) so I would go into that route.
A starting point for that would be to use Azure Mobile Services.
One last thing to note, WPF and WinForms are not WinRT, but there are other project templates (like the Hub template) that are. The fact that you chose the "Blank" template doesn't really affect anything in this regard.
I am really new to Windows Phone ( and Windows) development, and C#.I have done my first program as a unit convertor for Window Phone 8.1 using C# and Silverlight, run it on emulator and Phone both.
Now I want to build an application that can store data (e.g. a diary, that I can store plain text in it daily), something like usage of database, but I really have no idea how to do it and whether I need some sort of database, like SQLite, or there is some built in solution to store custom data in Windows Phone itself.
Can you please tell me how to and where to start?
In Windows Phone Silverlight apps, you have the option of using a SQLCE database with the LINQ-to-SQL framework on top of it (see docs here). If you're considering building a universal app that will run on both Windows and Windows Phone, however, your only database option is SQLite (see here for more details).
That said - unless you need to perform queries across a large amount of structured data, a database is probably overkill for your app. You may want to consider simply using flat files (docs here) to start and only upgrading to a database if the amount of metadata for the diary entries grows beyond what you'd want to keep in memory.
I'm building a Windows Store app with C#, and I have certain data and settings that I need to persist between sessions. Right now I'm doing this with local files, but for some of it, I don't want the users to be able to edit the files. I currently thwart that by using "scary" file names and obfuscated data, but I want better security, but also don't want to have to jump to my cloud service just to pull their settings, because I want functionality when internet connectivity doesn't exist.
How do I do this? I feel like this is something that should be pretty commonly used feature in apps.
I never worked on Windows 8/8.1 apps, so maybe there is some integrated feature to do what yout want, but I didn't find anything on that subject.
In fact, what I found seems to indicate the opposite :
If you want the data of your Windows Store app to be secured, you have
to do it by yourself.
Depending on the desired level of security you could try using some form of encryption for your local files.
This would make the settings unreadable by the user, and prevent them to tamper with it.
But as pointed in Windows 8 Apps - Local Storage Security, encryption might not be the best way if you really want to make sure the data cannot be edited outside your app, since it is possible to extract the key from your app and decode the data.
In Windows 8.1, I've seen video demonstrating that app can now cause a second, separate app to start, running side-by-side split screen. I would like to know what is the API to do this?
I also need to pass in some context at the time the other app is invoked. We have a set of app that will work together and we need this seamless integration. Internet might be unavailable, so web services aren't an option.
Any help would be greatly appreciated.
This is WinRT XAML / C# BTW.
First, you'll need to set LauncherOptions.DesiredRemainingView per the documentation to one of the enumeration values specifying how much of the screen you'd like to keep for your application.
Due to the sandboxed model of Windows Store apps, sharing data isn't as simple. There are several options that may work for you: contracts and extensions and a custom url(walkthrough).
The built-in emulator from the WP7 Tools doesn't have the Bing App installed, and I don't have any phone hardware to test with. So I'm simply wondering, how can I open the Bing Maps Application to a specific Lat/Long?
Related Questions:
iPhone -- How can I launch the Google Maps iPhone application from within my own native application?
Android -- https://developer.android.com/guide/appendix/g-app-intents.html
It seems that starting from the OS version 7.1 there's a specific task available for this, see BingMapsTask and for directions the BingMapsDirectionsTask.
Unfortunately there is no way to launch the Bing Maps App from within your own application.
In an early CTP there was a way but this has been removed. Hopefully it will return in the future but it is not on any current, public, roadmaps.
This leaves two alternatives.
Option 1
You could perform a search for the lat/long you want to show. The search app does directly integrate with the bing maps app so, assuming that bing can take the lat/long you provide and return something useful, the user would still be able to do whatever they wished within the bing maps app.
This has 2 downsides though. Firstly, you have no control over the search results. And, secondly, you cannot test this on the emulator.
Option 2
You could use the BingMaps control within your own silverlight application.
(Prior to the RTM, it was posible to use the full Silverlight version of the control within your app. But, this had a few quirks and was only ever intended as a stop gap solution.)
While not as fully featured as the app, the control does offer a lot of functionality.
Without a real device, but you could simulate location data, for testing, with the Reactive Extensions.
Even with a real device you will probably want to look at doing this as it's a lot easier than trying to debug while walking or driving around.
Edit:
As per this post by Kevin Marshall, if you're going to use the WebBrowserTask() (option 1 above) prefix your query with "maps:" and URL encode your query string. eg:
var task = new WebBrowserTask();
task.URL = "maps:1%20N%20Franklin%2060606";
or
task.URL = "maps:37.788153%2C-122.440162";
Bing maps silverlight control is now supported out of the box and is part of the tools... learn more about it here: http://channel9.msdn.com/Learn/Courses/WP7TrainingKit/WP7Silverlight/UsingBingMapsLab/Exercise-1-Introduction-to-the-Bing-Map-Control
Yes you can do this. I've got it running in the emulator (however, as many people have said there's no guarantee the Bing Maps for Silverlight control will run on the actual device)
Here is the xaml:
<m:Map Grid.Row="0" x:Name="mapMain" ZoomLevel="5" Mode="AerialWithLabels" CredentialsProvider="YOURBINGMAPSLICENSE" />
and here's some code to set the location in the .cs class
var ppLoc = new Location(-37.821285, 144.97785);
mapMain.SetView(ppLoc, 17);