I am working on windows phone 8. I am new to it. My concern is i want to load data in a list from database.(for example contacts). But i want to dynamically load data when users tap up the screen as for performance. First i need to display of 10 contacts(for example) and when user taps down i need to load it dynamically.. can we do this in windows phone 8.. can we fire an event in windows or do we have any thing in the telerik controls...Or there was any other method to improve the performance.
Can any one please help me to find the solution..
take a look of this example and this is the description of how to create infinite LongListSelector in windows phone 8
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I am working on a Windows Phone application where I would like to automatically trigger the device lock. I also want to add an option to change the device lock pin code from my application. Is this possible?
Neither of the things you want is possible with the current SDK.
i Want to implement a passcode let say of 4 digits like we usually implement in Android. I know how to create it in android, but how can i make it done for windows phone 8.
What do you mean by passcode? Do you want to implement it in your own application as a special login page or do you want to make it global for the entire phone?
If the former, simply create a special intro page.
If the latter, than it cannot be done at all since you do not have access to global functionality.
I want to use the Pivot control in my Windows Phone 8 app. It all works great except for one little detail... it seems to have delay when I swipe between pivot items.
To explain what I am talking about. Please compare the following:
In Visual Studio, create a new project based on the "Windows Phone Pivot App" template. Run this on a device or in the emulator. Swipe left or right a couple of times.
Now open up the settings app or the native mail app on Windows Phone 8. Those apps use a Pivot as well. Now swipe left or right a couple of times again. Notice how fast new content is displayed every time you swipe!
So basically: I want to remove the "delay" I experience when using the stock Pivot control and instead have the same speed as the settings and mail app.
Can anyone help me out please?
Is there any way a Windows Phone 8 app can make phone calls, sending SMS, and perform other cellular network activities without user interaction?
According to this answer https://stackoverflow.com/a/7342769 it is somehow possible to perform AT commands to directly access the cellular functionality on Windows Phone 7 (in an inofficial way). Since the Windows Phone 8 SDK supports native code, my question is if you can make use of this to send the required AT commands or access the RIL layer somehow.
In case anyone is wondering why I need this: it's not about an app wich is going to get published but it is needed for an automated testing process.
You cannot do that, this is not possible in windows phone
This is how you do it on Windows Phone 7 http://blog.jerrynixon.com/2011/11/mango-sample-lock-and-run.html is it possible in Windows 8?
This sample is showing you how to implement the functionality so your app will still "run" when the device is locked. It only seems to work with a kind of "background tasks" which makes it not exactly the same as it is for Windows Phone.
http://code.msdn.microsoft.com/windowsapps/Lock-screen-apps-sample-9843dc3a
Please note that an app that can run when the device is locked should have at least one of the following background tasks:
Control Channel
Timer
Push Notification
Here is some more info on the lockscreen: http://msdn.microsoft.com/library/windows/apps/Hh779720
UPDATE:
As far as I have found there is no exact behaviour like in Windows phone to run your app under the lockscreen. There are a few recent posts on the MSDN blogs which explain the background model http://blogs.msdn.com/b/windowsappdev/archive/2012/05/16/being-productive-when-your-app-is-offscreen.aspx?wa=wsignin1.0
Sorry to see that at this moment there is no way to make it work under the lockscreen