Questions tagged [windows-phone-7.1]

Windows Phone 7.1 is the version number of the OS and developer SDK for Windows Phone "Codename Mango". Phones running this operating system are marketed as being "Windows Phone 7.5".

The codename "Mango" update to Windows Phone 7. Made available to developers in June 2011 and scheduled for public availability later in 2011. It contains over 500 new features and 1500+ new APIs.

This tag can be considered a synonym of [windows-phone-7.5] as they both refer to the same thing.

Use of the generic tag [windows-phone-7] is recommended as more people are likely to see such questions. This, hopefully, increases your likelihood of a fast and accurate answer.

More on the confusion between 7.1 & 7.5 can be found at:

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1878 questions
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Run "async" method on a background thread

I'm trying to run an "async" method from an ordinary method: public string Prop { get { return _prop; } set { _prop = value; RaisePropertyChanged(); } } private async Task GetSomething() { return await…
McGarnagle
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Xap packaging failed. Object reference not set to an instance of an object

I'm getting this error message on my PC when I try to build my Windows Phone app: Xap packaging failed. Object reference not set to an instance of an object I'm using Dropbox. On my laptop, It works perfectly fine and I can debug etc...On my PC…
Subby
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Text in the message box should be the next next lines

Basically i display the some text in the MessageBox with Ok and Cancel button in WindowPhone 7.1. I need the requirement like the below. Some text will be here.... Property:value... Actually we can simply the text in the MessageBox, but how can i…
David Bekham
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2 answers

Windows phone 7.1 ListPicker, easy way to go full mode?

I'm trying to use the ListPicker controller with ListPickerMode="Full", to get the fullscreen pick window. However it just generate an error when i try "A first chance exception of type 'System.Windows.Markup.XamlParseException' occurred in…
OlssN
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3 answers

Open numeric only keyboard in Windows Phone?

How can i set the keyboard to open in number mode or directly open a special numeric keyboard (as in android)??? My goal is to avoid the user to press the little button to toggle letters and numbers everytime before entering the value that may only…
Cippo
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Develop for Windows Phone 7 (or 7.1) using Visual Studio 2012 (RTM,Premium)

Is it possible to get the WindowsPhone 7.1.1 sdk to work with Visual Studio 2012? Edit: As stated in the title of my question: I wanted to know whether its possible to develop windows phone 7.1.1 apps using Visual Studio 2012. I already tried…
15
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4 answers

Want to start with Windows Phone 7 development

As just now, I heard about the Windows Phone 7 development. So I would like to know the following things regarding Windows Phone 7: From where can I start with Windows Phone 7 development? What are the best books/article/code blog/tutorial,…
Paresh Mayani
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14
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Windows phone 8 emulator debugging doesn't work

Error: a specified communication resource (port) is already in use by another application This happens only on the Hyper-V emulator, old, 7.1 emulator works fine. Deployment from Blend 2012 works fine. Deleting the virtual machines in Hyper-V…
13
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3 answers

Json.net slow serialization and deserialization

I have a problem - Json.Net serializing my objects realy slow. I have some basic class: public class authenticationRequest { public string userid; public string tid; public string token; public string platform; public string…
Thaven
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6 answers

How can I get the page title in WebBrowser control?

How can I get the page title in a WebBrowser control when I navigate to different websites? xmlns xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" Properties starting with…
BrunoLM
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2 answers

Remove left margin/padding in ExpanderView

By default implementing a ExpanderView in an application the UI renders and the expanderView control has this left margin applied to it, some sort of indentation. It's rather stupid really that it's like that by default. Is there some way to get rid…
user818700
11
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2 answers

UnhandledException in WP7

I am getting this weird error when making a WP7 app, and I can not see why. The only output/ error message I get is "UnhandledException: The parameter is incorrect. : : : ProgramName.App" This error occurs randomly, and I do not get any information…
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2 answers

Sqlite on both Windows Phone 7.1 and Windows Phone 8

I'm developing an app for Windows Phone 7.1(7.5) - 8 (Must work for both) , in which database connectivity is required. This Application is already realized for Iphone and Android, so I have to use there Database file to the database structure was…
Vovich
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How to remove volume controls on lock screen in WP7?

When you stop your music which is playing in the music player, it doesn't really stop it. It just pauses it, as you are still able to see the music controls after you lock the screen. I want to remove the volume controls (rewind,play,forward)…
10
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3 answers

Generally how long is the review process for Windows Phone 7 Marketplace apps?

I'm about to upload my first application to the Windows Marketplace (Dec 2011). Generally how long is the approval process before my app appears on the Marketplace? 1 Day? 1 Week? 1 Month?
Ethan Allen
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