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Great Reads

Introducing Calcium for Xamarin.Forms

by Daniel Vaughan

Create best-in-breed cross-platform MVVM apps using Calcium for Xamarin.Forms.

Xamarin TV Scripts

by Marcelo Ricardo de Oliveira

An entertainment app written in C# language for the Xamarin Forms and Android, using a SQLite local database

Using MVVM to create Tabbed Interfaces with Calcium for Xamarin Forms

by Daniel Vaughan

Create a Xamarin Forms tabbed page or carousel page by binding to a collection of ViewModels; extending beyond the current capabilities of Xamarin Forms.

Xamarin with TinyIoC

by n.podbielski

Use of IoC container in Xamarin on example of TinyIoC

Latest Articles

Xamarin Forms - Validations Made Simple

by Chandru BK

This article will assume you have basic knowledge of C# and Xamarin Forms and shows how to implement the Xamarin Form Validations using simple Data Annotations applied on the models.

Tour of Heroes: MAUI, with ASP.NET Core 8 Backend

by Zijian

A series of articles comparing programmer experiences of Angular, Aurelia, React, Vue, Xamarin and MAUI

Tour of Heroes: Xamarin, with ASP.NET Backend

by Zijian

A series of articles comparing programmer experiences of Angular, Aurelia, React, Vue, Xamarin and MAUI

Generate Icon Sets for Android and iOS in Native Mobile App Development

by Zijian

Use PowerShell scripts to generate icons of native mobile apps

All Articles

Xamarin

How to connect xamarin forms app to SQL server management studio

29 Jun 2018 by #realJSOP

You can't connect ANY app to SSMS. SSMS is a tool used to manage a SQL Server instance. What I think you *really* want to do is to connect the app to a SQL Server database. If it were me, I'd develop a web service that could be used to connect to the database. Any app can connect to a web service.

How to run test using VS on iOS simulator(on mac)

26 Jul 2016 by 123456789igor

Just started investigate the Xamarin Test Cloud. I want to write a simple test using VS and run this test on iOS simulator, which is running on Mac machine. I've connected to Xamarin Mac Agent. Agent run on the same Mac machine as the iOS simulator.I've faced with exception "iOS tests are...

How to fix "Connection to the layout renderer failed" in xamarin?

24 Feb 2015 by 24983

Hi, I having installed all sdk including xamarin. When i doubl click on filename.xaml thn got the following errors, "Connection to the layout renderer failed. this may be caused by misconfiguration of java Please close and open the file again."

How to call Wcf Method(URL) in Xamarin Activity page?

26 Feb 2015 by 24983

Hi, I am developing simple page Insert and fetch the records from sqlserver using WCF Services.Now created 2 methods such as insert and fetch in wcf. So How to call Wcf Url in Xamarin Android page.Let me know about this with example coding.Thanks.

How to display Data to Xamarin.Android from WCF JSON?

4 Mar 2015 by 24983

Hi, I am new to Xamarin, How to fetch data from WCf Json to Xamarin.android. then How to call WCF Josn data in Activity page?Please Guide me.

How to use wcf services in xamarin.android ?

10 Mar 2015 by 24983

Hi,I am new to xamarin, how to connect sqlserver in xamarin? How to connect wcf in xamarin?Please explain me.

How can I add sqlite.cs and sqliteasync.cs to my android project

15 Jul 2020 by aazam rafiee zade

Hello I can not use using SQLite; because I can not use Manage NuGut Packages. No package is visible to me. I added "packages" from the previous project to my current project. How to add these files (SQLite.cs and SQLiteAsync.cs in packages) to...

Custom Dialogs in Xamarin.Forms: Plugin "Rg.Plugins.Popup" Pages Asynchronous

8 Dec 2019 by Abdulrahman Emad

This article proposes a solution for plugging "Rg.Plugins.Popup" asynchronous into your code.

Xamarin: Where is .Net Framework subset?

6 Apr 2015 by Abhinav S

Just a note, Xamarin can also work from within Visual Studio - check this out - http://xamarin.com/visual-studio[^].

Introduction to Xamarin

28 Feb 2017 by Abu_yanal

Introduction to Xamarin

How to learn iOS apps

23 Feb 2015 by Afzaal Ahmad Zeeshan

Short answer - No! You cannot have that.Long answer - They're also developers, who started to help others like you who know C# only, so that developers like you can easily get their applications built for cross-platform support. You wanted an easy framework, they needed financial support....

Which is better Unity or Xamarin

2 Sep 2015 by Afzaal Ahmad Zeeshan

First of all you need to understand the basic different between them so that you can choose which one to use in your case. First of all, Unity3D is a gaming engine and Xamarin is a cross-platform application development framework. Although there purpose is same, but their functionality and...

Guide for Building C# Apps on Ubuntu: MonoProject Introduction

15 Jan 2016 by Afzaal Ahmad Zeeshan

This is the first part in the series of posts about Ubuntu programming using C# language. In this post, I have discussed a few features of MonoProject IDE, which is used for C# programming on Ubuntu environment.

Android game development where to start

4 Mar 2016 by Afzaal Ahmad Zeeshan

I won't recommend Xamarin as a game development engine, because just to make things work in Xamarin, you are again going to ask for help from another tool.Instead, I would recommend that you get a game development engine. Unreal, Unity or any other, doesn't matter. As long as that framework...

What is "dev 15", and how to use it in visual studio 2015 and why we use it.

22 Mar 2016 by Afzaal Ahmad Zeeshan

From your own link, Quote[^]:MICROSOFT VISUAL STUDIO 2015 (AND NEXT VERSION CODE-NAME DEV15) PRODUCT FAMILY PRE-RELEASE SOFTWARERemember "Project Spartan[^]"? Spartan was the code-name given to the project for Microsoft Edge. They are using the same thing here. They are code-naming the...

Learning SQLite databases in Xamarin for Android

19 Feb 2017 by Afzaal Ahmad Zeeshan

In this article I will give you a complete overview of SQLite databases in Android and how to consume them using Xamarin APIs.

Common Problems in Xamarin.Android and their Solutions

20 Feb 2017 by Afzaal Ahmad Zeeshan

In this article, I cover the most widely faced problems in Xamarin installation and setup for Android application development.

How to handle unhandled(nullexception) exception in button handlers in xamarin.android

11 Apr 2017 by Afzaal Ahmad Zeeshan

Although to handle the errors, you would need to use a try...catch block, whereas in this case it would be an if...else block to be used. ButtonPrev = FindViewById(Resource.Id.buttonPrev); ButtonNext = FindViewById(Resource.Id.buttonNext); TextTitle =...

How do I make a sound app for a another app using it's API?

4 Nov 2017 by Afzaal Ahmad Zeeshan

All of these questions are to be answered by the API itself, and we have no idea about it. Quote: What programming language do I use? I was thinking of C# but am open to suggestions. What languages do they support? Since you have tagged Xamarin and Monogame, I assume C# is the case. Quote: How...

Real-time Emotion Detection with Azure Cognitive Services

15 Apr 2019 by Afzaal Ahmad Zeeshan

Integrating Cognitive Services SDKs in a .NET Core based application and exploring how real-world scenarios can be tackled using ML services offered by Microsoft

machine-learning

Xamarin form - how to make UI responsive in UWP desktop application.

25 Jul 2019 by Afzaal Ahmad Zeeshan

If you mean not-responsive in the way that the UI is frozen or stuck, then maybe you need to see how asynchronous approaches to application development work. Since you are working in Xamarin.Forms, I can recommend that you reach how asynchronous development approaches are applied to this...

Real-time Emotion Detection with Azure Cognitive Services

15 Apr 2019 by Afzaal Ahmad Zeeshan

Integrate Cognitive Services SDKs in .NET Core based app

machine-learning

"reference to unknown project ignored" error in xamarin studio.

19 Aug 2015 by Agarwal1984

Hello,"reference to unknown project 'abc' ignored" error is coming, when i created new android app project in xamarin studio.I can't create app.Please help me.How can be resolve this issue.Thanks in Advance.Ankit AgarwalSoftware Engineer

How to insert data in to the ms sql server database using c# .net web service with xamarin android application?

9 Sep 2015 by Agarwal1984

Hello,I am a fresher for xamarin.I have to develop android application,synchronization with ms sql server database.I am using xamarin for this, but how can we create web service for data insert and how to call web service in xamarin framework for android app development?Please help...

'system.reflection.assembly' require business (or higher)license

9 Sep 2015 by Agarwal1984

Hello,How to resolve this error:-'system.reflection.assembly' require business (or higher)license.please help me.Ankit AgarwalSoftware Engineer

VS 2015 Crashes When open *.axml files using Android Designer Xamarin

25 Jul 2016 by Ahmad Kharsah

Fix VS2015 Crashes when open *.axml file after Update Xamarin and Java JDK

How to deal with exception: encoding 1256 data could not be found. Make sure you have correct international codeset assembly installed and enabled

15 May 2021 by Ahmad_kelany

Hello, I am using dapper in Xamain Forms project to connect from Android application to SQL Server database on a desktop PC: using (conn) { result = await conn.QueryFirstAsync(@"Select Count(*) From Balances"); } The code was working...

Can not convert from to xamarin form page

1 Sep 2021 by ahmedbelal

I am trying to Navigate from Page To Page with the click event on my main page but gives me following error: Argument 1: cannot convert from 'TESTTwo.Register' to 'Xamarin.Forms.Page' My Project Named TESTTwo What I have tried: My Code...

Why I am getting error in xamarin in visual studion 2017

17 Nov 2018 by Aitzaz Ahsan

Bottom navigation with master detail page

15 Jul 2018 by Ajay_Saini

Hi, Just like in Youtube app i wanted to design a form so that i can show the bottom navigation always and customize the navigation header with a logo and toolbar along with drawer menu. Now i want to show bottom navigation everytime with every page when it gets open from left menu which can...

How to obfuscate DLL in xamarin?

27 Jun 2016 by Ajit Hegde

Hi I am using Xamarin with VS2015 Community Edition.My problem is when I build the project I can obfuscate however when I publish the apk or export the apk it will replace the obfuscated dll with original dll.How can I obfuscate app even when I publish the apk?What I have tried:So...

How to obfuscate DLL in xamarin?

27 Jun 2016 by Ajit Hegde

This answer is posted by Polyariz in stackoverflow.c# - How to use .Net Reactor obfuscated dll of Xamarin Android APK - Stack Overflow[^]

I have Create Java Bind Library in Xamarin and add .Jar file in Library and Add reference of this Project in My Project

19 Aug 2014 by akhil.scs

I have Create Java Bind Library in Xamarin and add .Jar file in Libraryand Add reference of this Project in My Projectand library is call - Com.Symbol.Emdkwhen i Implement this one -EMDKResults results = EMDKManager.GetEMDKManager(Android.App.Application.Context ,this);then Go...

Using ConfuserEx to Protect Your xamarin.forms App

8 Aug 2019 by Alen Toma

Using ConfuserEx to protect your xamarin.forms app

How to set entry control over an image?

17 Jun 2021 by Alex Dunlop

Hi, I want to set an Entry (input text in Android/iOS) over an image that plays an input box role. I tried this XAML code but I couldn't set its correct position over the first rectangle (image): https://s4.uupload.ir/files/1_hepn.png[^] What I...

Using System.XML on XAMARIN forms project

1 Oct 2015 by Alexandru Lungu

I don't think that XmlDocument is portable; try using XDocument and/or XmlReader.

Zyan Drench, A Game for Android with Wifi Support

28 Feb 2016 by AlexeyYakovlev

This article describes building an Android game with networking support using C#, Xamarin.Android platform and Zyan Communication Framework.

Android SpeechRecognizer problem

10 Sep 2014 by ali_heidari_

Hi.I am working on a small application for android using xamarin.android and c#, a part of it is listening to user speech!I am using Android.Speech.SpeechRecognizer for this. this is my code :Android.Speech.SpeechRecognizer sp =...

Publish/Subscribe Pattern for PCL using Weak References

11 May 2014 by AllCodify

A Pub/Sub implementation that is PCL compatible for Xamarin iOS and Android

The Dew Review – Visual Studio 2015 Community Edition

12 Nov 2015 by Alvin Ashcraft

Open source software (OSS) development has reached the mainstream .NET community and created a whole new customer segment for development tools. Microsoft has responded to this need by creating the Visual Studio Community Edition.

Facebook & LinkedIn Login with Firebase and Xamarin

12 Sep 2017 by amartya mandal

Facebook & LinkedIn login with Firebase and Xamarin

How to implement GCM(Google Cloud Messaging) in XAMARIN

29 Mar 2015 by amazingavis

Hi am new to this IDE. Well am trying to build an app in it,in that requirement Google Cloud Messaging is also a part.can anyone help me with GCM implementation in XAMARIN.

How Can I Install Xamarin . Net ?

9 Aug 2015 by Amel Smile

i'm trying to install Xamarin .NET but it wouldn't work, so I figured I should install the whole Visual Studio, but It still wouldn't work, I keep getting this error message (update for microsoft windows KB2999226) and (Microsoft Visual C++ 2013 Redistributable (x86)-12.0.21005

How to Create ListView in Xamarin?

9 Aug 2015 by amir tavakoli

I need a C# code sample for create a simple listview.just that

How to access iOS iCloud drive root in xamarin iOS

20 Nov 2018 by amnk.info

I am using xamarin forms app. Now i can upload files to icloud by selecting icloud document folder in my app. But now i need to do this without selecting manually. Is there way to access icloud root path? Please help What I have tried: Tried to access iOS root of iCloud Drive in xamarin ios

Xamarin icloud connect error

23 Nov 2018 by amnk.info

I had tried to connect icloud using this code. i referred many examples and tried this. i always getting url value null. NSUrl url = NSFileManager.DefaultManager.GetUrlForUbiquityContainer("iCloud.com.amnk.MyApp"); Please can anyone tell me how to fixed this What I have tried: connect to...

Xamarin listview paging control

21 Feb 2019 by amnk.info

Is there any xamarin listview paging control example available? I tried to find everywhere could't find better example. Please help What I have tried: find list view example in xamarin android

A Better Approach for Consuming Authorized Back-End Services while Transparently Handling Refresh Tokens Renewals for C#/Xamarin Apps

30 Sep 2020 by Ana Carolina Zambon

How to consume authorized back-end services while transparently handling refresh token renewals

Adaptive Layouts for Different Device Sizes in Xamarin Apps

6 Jan 2021 by Ana Carolina Zambon

In this post, you will learn how to make Apps have a fluid and adaptive UI on different device screen sizes.

Remote controlled LED / Weather Station / Message Display (Part 1 - Raspberry Pi)

4 Jan 2017 by Andrew Lai

A small project to give my son a great surprise

Remote Controlled LED / Weather Station / Message Display (Part 2 - Xamarin Mobile App)

31 Dec 2016 by Andrew Lai

This is Part 2 of my Raspberry Pi traffic light and weather station project - The mobile app

Virtualizing Data with XAML

9 Feb 2015 by Andrew Whiddett

Creating a scaleable ObservableCollection that supports pagination, async and (for the first time) FULL write operations