Targeting WP 8.0 in VS 2013 Update 2 - windows-phone

I have just installed Visual Studio 2013 Update 2. During yesterday's Keynote, it was said that with this update it would be possible to build both WP 8.0 and WP 8.1 apps. I can still open my older solutions, but cannot create a new Windows Phone 8.0 application - anyone knows how to do this?

Found a solution: instead of creating a new Blank App (Windows Phone), one should create a new Blank App (Windows Phone Silverlight). :)

Related

Building Windows 8 store apps in Visual Studio 2015

I recently migrated from Windows 8 / VS2013 to Windows 10 / VS2015. After doing so I can no longer build Windows 8 store apps - I'm forced to upgrade to Windows 8.1 if I want to build the project.
However, I maintain two builds of my app - one for Windows 8 and one for 8.1. I have a number of customers who refuse to update to 8.1 (No, I have no idea why) and I don't want to leave them with an outdated version. I've already upgraded the project to 8.1 and keep that separate.
Is there any way to build a Windows 8.0 app in Visual Studio 2015, without the forced upgrade?
Visual Studio 2015 does not support building Windows 8 Store apps. As you indicated it will only migrate them to 8.1. You must use VS2013 to maintain Windows 8 Store apps and you can only use VS 2012 to create any new ones.
This is covered in the Visual Studio 2015 compatibility support page.
https://www.visualstudio.com/en-us/products/visual-studio-2015-compatibility-vs.aspx

Develop Windows 8.0/8.1 app from already existing IBM Worklight Project

I need to create a Windows Phone 8.0 as well as Windows Phone 8.1 app from already developed IBM Worklight(6.1) Project. Is there any document that elucidates end to end solution to do that? Also could you please elucidate tools/plugins required?
To your existing MFP/Worklight project, you can add the Windows Phone environment. This will generate the Visual Studio project for Windows Phone. The same app can be run on Windows Phone 8.0 and 8.1.
The following getting started modules give you an overview of whats needed to develop a Windows Phone app.
http://public.dhe.ibm.com/software/mobile-solutions/worklight/docs/v610/01_07_Setting_up_your_Windows_Phone_8_development_environment.pdf
http://public.dhe.ibm.com/software/mobile-solutions/worklight/docs/v610/03_11_General_information_when_developing_for_Windows_Phone_8.pdf

Change Application version on Windows Phone

I am trying to change application version from Windows Phone 8.1 to 8.0 and I can not see 8.0.
Thanks in advance.
Thought Visual Studio 2013 can upgrade WP8.0 projects to WP8.1, the reverse operation isn't available. When you upgrade the WP8.0 project, you should see a popup window, which says that '... this operation cannot be undone'.
If you want to make a WP8.0 project then you will have to start a new project, select one of (Windows Phone Silverlight) and then, after clicking OK, the VS should ask you if you want this project to be WP8.0 or WP8.1. Once you select WP8.0, then you will also be able to upgrade it later to WP8.1.

Develop a windows store app for Windows 8 and Windows 8.1

is it possible to develop an app for windows 8 and it will run on windows 8.1 normally? what about the validation in the store? and its visibility in the store for users who have windows 8.1 on their pcs?
why visual studio 2013 professional version is supported by windows 8 and not visual studio 2013 express edition for windows?
if we developp a library in windows phone 8, could we reuse it in Windows 8.1 application? (specifically its validation in the store?)
thx for ur answers
Will a Win8 app run on Win8.1?
Check this question here on SO: Migration Windows Store App based on 8.1. does it has backward compatibility with 8?
Basically, the answer is YES. But not the other way around. Windows 8.1 apps will not work on Windows 8. So the visibility in the store depends on the targeted version of the app and the version that is running. Win 8.1 users will see both and Win 8 users only see Win 8 apps.
VS2013 Express on Windows 8.1 only?
Depends on the type of VS you want. Check the Visual Studio Express page and decide which version you want. For example Express 2013 for Windows will only work on Windows 8.1, while Express 2013 for Windows Desktop will also work on Windows 8.
Windows Phone 8 to Windows 8?
Channel9 Always had interesting posts about development and for this case too. Check the page Building Apps for Both Windows 8 and Windows Phone 8 Jump Start for more information about developing for both platforms.
Hope this helps! :)

Will windows phone app with target version 8.0 run on 7 or 7.1?

Initially i developed my windows phone app with version 7.1 but later i upgraded it to target the version 8.0 .
Now my doubt is that will my app work in windows phone 7.1 version??
Thank You in Advance!
No it won't. Keep it in 7.1 if you don't make use of any special features available only in 8.0. Or maintain two project version as explained in Nokia Developer Community Wiki if you need some feature in 8.0 platform but want to keep support for 7.1. You can submit two .XAP version -for WP 8.0 and 7.1- for one application in Windows Phone Marketplace.
You cannot convert a windows phone 8 app to Windows Phone 7.1, but you can target both versions. Details on how the whole process works can be found here.
Hy,
if you have upgraded to 8.0 WindowsPhoone you can no longer perform in WindowsPhone downgrade to 7.1, my advice if you want to continue to develop for both operating systems keep 2 copies of the project