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Tracking Objects with Pixy Visual Sensor on Raspberry Pi using Windows 10 IoT Core

by Victor Dashevsky

Processing the positioning information of visual objects detected by Pixy camera and received on Raspberry Pi via I2C, and using common design patterns in a C# program parsing robotics sensor data

Programming Windows 10 Desktop: UWP Focus (7 of N)

by raddevus

Get Started in UWP (moving away from WinForm) Chapter 7 Saving journal entries in the file system

UWP Alien Sokoban - Part 3

by Daniel Vaughan

A fun UWP implementation of the game Sokoban, demonstrating some new features of XAML and C# 6.0. Part 3

Programming Windows 10 Desktop: UWP Focus (4 of N)

by raddevus

Get Started in UWP (moving away from WinForm) Chapter 4 Adding Windows Controls (Building the DailyJournal app)

Latest Articles

A Spritesheet Library and Editor for Win2D

by g96b10

Win2D provides a neat API interface, but how do you render complex sprites for your game? I provide a library and editor to make this a streamlined process.

Edit Template or Edit Additional Templates in Visual Studio XAML without all the Bloat

by SoundersFan

How to edit templates in VS XAML without the bloat

RGF: A Save/Open Dialog Box with Cloud Capabilities

by Michael Chourdakis

Replace GetOpenFileName/GetSaveFileName with a new cloud API!

Creating a Settings Screen for UWP with Codon

by Daniel Vaughan

Create a dynamic settings screen for your UWP app. Add a setting with a single line of code.

All Articles

Universal Windows Platform

[ UWP ] how to use a COM based API in UWP application?

29 Aug 2017 by Ammar Shaukat

I’m currently working on a UWP app to work with scanners. This application is a POS app and reads barcodes. Windows 10 Provides its built in barcode scanner class. That is used for UWP apps but it is limited in functionalities. you can check it here. Window 10 barcode Scanner for UWP

[ UWP ] how to use a COM based API in UWP application?

29 Aug 2017 by Dave Kreskowiak

Some COM components work in UWP apps, most don't. Why? UWP applications run in a "sandbox" where the application needs permissions to do just about anything. They are restricted to using a limited subset of the Win32 and COM API's. Most existing COM components, unless they are explicitly...

[UWP, C#] account name not appear

7 Apr 2016 by Luiey Ichigo

Hi,I'm having problem to appearing the account user name. Can someone specify what's problem that I'm facing right now? Just first day of UWP and C#.XAML:

[UWP] how to disable ctrl key while zooming in scrollviewer

23 Jun 2020 by Duong Dieu Phap

Hi, I'm using ScrollViewer UWP control to zoom an image, I manage to set ZoomMode="Enabled" to enable the zooming function. But the problem is, it only works by holding Ctrl key and mouse wheel! Is there any way to just using mouse wheel? Or...

[UWP] how to start an exe file that is located in specific directory?

15 Mar 2018 by neoxxxooo

I am trying to start an exe that is located in C:/Program Files (x86)/App/ from UWP app. The UWP app is located in different directory C:/Program Files (x86)/UWPApp/. Is it possible to do that? What I have tried: I can start exe file by using Windows Desktop extension for UWP, add ...

[UWP] how to start an exe file that is located in specific directory?

8 Mar 2018 by mvdk72

Only solution that I see now is that you search for the .exe and start it when you find it. It is not possible to just start an executable and not telling where it can be found. The file system has folders for a good reason

[Uwp] Make a Resizable Splitview

27 Sep 2018 by Georgeutc

A very simple Resizable SplitView

[UWP][win 10 phone][C#]searching the list for a particular content whether it is case sensitive or not

18 Jul 2016 by Mohan Rajesh Komatlapalli

Hello all,In my application iam having a search functionality , and i implemented it like belowplacelist = placelist.Where(i => i.category_name.Contains(postData)).Union(placelist.Where(i => i.category_address.Contains(postData))).Union(placelist.Where(i =>...

[UWP][win 10 phone][C#]searching the list for a particular content whether it is case sensitive or not

15 Jul 2016 by Patrice T

Quote:when iam Entering the postData as "bamb", it is returning nothing , But when i enter the same thing like "Bamb", It is showing the results.The problem is rather classical and easy to solve.You have some data (whatever is the the organization).For performance considerations, you have...

[UWP][win 10 phone][C#]searching the list for a particular content whether it is case sensitive or not

18 Jul 2016 by Mohan Rajesh Komatlapalli

I have modified the code as below referred from StackOverflowindexlist = (from item in indexlist where ContainsIgnoreCase(item.restaurant_location,searchtext) || ContainsIgnoreCase(item.restaurant_name, searchtext) ...

[UWP]getting data between two dates in a list in C# using linq

7 Jul 2016 by Mohan Rajesh Komatlapalli

Iam having a list which contains data like a startdate , end date, name, location etc..Now i want to write a condition like i want to get data if, the datetime.Today is between event startdate and end date then it should get the data to Ongoing events list for that true condition also...

[UWP]getting data between two dates in a list in C# using linq

6 Jul 2016 by vijeshkumarvijayan

i am not exactly sure whether this will resolve your problem,from my understanding the following solution may help you to resolve the current situation* Only for Ongoing Eventshad you try this instead of your existing Code : indexlist = saveList.Where(i =...

[UWP]getting data between two dates in a list in C# using linq

7 Jul 2016 by Mohan Rajesh Komatlapalli

HI @vijeshkumarvijayanThank You that worked for OnGoing Eventsbut for Past Events i wrote like this indexlist = saveList.Where(i => Convert.ToDateTime(i.event_startdate) Convert.ToDateTime(i.event_endDate)

[UWP]getting data between two dates in a list in C# using linq

7 Jul 2016 by vijeshkumarvijayan

you can reuse same code and change condition indexlist = saveList.Where(i = Convert.ToDateTime(i.event_startdate)

[UWP]getting error while submitting my .appxbundle, to store.

1 Aug 2016 by Mohan Rajesh Komatlapalli

Hi, Everyone.Iam trying to submit my newer version of my application to store(Windows 10 Phone app), I tested my .APPXBUNDLE with Windows app Cert Kit and it showed successfull or Passed, So that i uploaded that file on to store and when i click on Submit to StoreIt is giving me an error...

A Navigation System for UWP Apps

20 Dec 2015 by Akash Gutha

This tip is aimed at providing a simple solution for simple page to page navigation system for your UWP apps.

A Spritesheet Library and Editor for Win2D

7 Feb 2021 by g96b10

Win2D provides a neat API interface, but how do you render complex sprites for your game? I provide a library and editor to make this a streamlined process.

Add a validation message to UWP datagrid control

23 Oct 2021 by ajburge

I am developing an App that utilizes the UWP DataGrid control from the Windows Community Toolkit. The control handles validation by turning the background red for scenarios where I have implemented INotifyDataErrorInfo, GetErrors(), HasErrors()...

Adobe Illustrator Script for UWP Assets

19 Jan 2016 by Leisvan Cordero

Adobe Illustrator script for UWP Assets

Advanced View States for Windows 10 apps

15 Apr 2015 by Juan Pablo G.C.

StateTriggers with multiple properties and initialization, setters for attached properties, deep property path, set values to null,custom attached properties, visual state group as resource and trigger inside datatemplates workaround

API istokenrestricted in advapi32.dll is not supported for this application type. Sni.dll calls this API.

27 Aug 2021 by Mohamed Z Osman

UWP app submission, The following Test fails on the Windows App Certification Kit: Quote: Supported APIs · Error Found: The supported APIs test detected the following errors: o API IsTokenRestricted in advapi32.dll is not supported...

API istokenrestricted in advapi32.dll is not supported for this application type. Sni.dll calls this API.

27 Aug 2021 by Mohamed Z Osman

Loopback flags were indicated as a possible issue. After deactivation, tests still failed. One of the following references was the real culprit: Microsoft.VisualStudio.Services.Client Microsoft.AspNetCore.Mvc.Core...

Appbarbutton lost function after changing it's icon and label in UWP C# project

26 May 2019 by ahmed walid

AppBarButton lost function (doesn't execute it's code) after changing it's Label and Icon (the code work only for first click on button but doesn't work any more(after the change)) for example : In this code mediaPlayer.Pause(); works private async void AppBarButton_Click_1(object sender,...

Async Commands with Codon FX

1 Apr 2018 by Daniel Vaughan

Learn how to leverage the asynchronous ICommand implementation in Codon FX to support commands that kick-off long-running operations.

Automatically Incrementing the Package.appxmanifest Version Number

28 Aug 2015 by Daniel Vaughan

When submitting a UWP or WinRT app to the Windows Store, you must increase the Version number of the package or the submission will fail. It can be a chore to manually update the version number.

Background task to record time and wite it into file in uwp application

29 Dec 2016 by visnuS

Toast notification have a "close button" in the upper right corner.I want to record the time-stamp and the title of thee toast when user click that "close button" in the UWP application.Is it possible to achieve?What I have tried:public class MyBackgroundTask : IBackgroundTask{ ...

Bind an image to a button

16 May 2017 by Rodimus74

I'm trying to show an image within a button (UWP). When I step through the code, the objects are all created properly and the Raise event is being called to update the XAML page - however no image is displayed. In this example the TEXT content is set on the first button - so I know binding to...

Bind an image to a button

11 May 2017 by Eddie Han

Hi, I don't know exactly that Image.Source can bind with BitmapImage. But I did it using character sequence. char[] can bind with the Image.Source. here is the example. XAML : CS: public bool...

Bind an image to a button

16 May 2017 by Rodimus74

Finally got this working.... MainPage.xaml

BLE on windows 10 desktop

10 Apr 2016 by Andrea@Favero

I need to write an application on Windows 10 desktop, to test and develop some embedded products with BLE. I know that BLE is more mature on iOS and Android (and even on Windows Phone), but we are used to Windows Desktop applications, developed in Visual Studio 2015, in c#.I already...

BLE on windows 10 desktop

10 Apr 2016 by Andrea@Favero

Update: I found the way to include the Windows 10 runtime.Add a reference to C:\Program Files (x86)\Windows Kits\10\UnionMetadata\Windows.winmdThanks the same :-)

Building Adaptive UI in UWP

25 Oct 2015 by Abhilash Raja

Building adaptive layout in a windows 10 app with relative panel and adaptive triggers

Building apps & games for Xbox One using UWP – Build once and target many

14 Nov 2016 by Simon Jackson

For my sins, I was asked back to FutureDecoded again this year to give a talk on the Microsoft UWP platform, specifically about bringing games to the XboxOne using UWP. By all accounts the session went well (especially as there was standing room only by the time the …

C# toastnotification - how can I react on closing notification with "x" ?

15 Feb 2024 by Emil12345687

Hello, i use ToastNotifications in my C# Application. Using the Microsoft.Toolkit.Uwp.Notifications NuGet Package. Content is build with ToastContentBuilder. I added the ToastNotificationManagerCompat.OnActivated event in my Application_Startup...

C# toastnotification - how can I react on closing notification with "x" ?

19 Feb 2024 by Emil12345687

Thank you - very good thoughts... You're completely right, it seems that it works like it should - it really would be a security issue if the behaviour clicking on "x" could be modified...

C++/winrt: how to get attributes of the current user

24 Jul 2020 by twhall

[Full disclosure: I've posted a similar question (same subject line) on "another developer forum" and received an answer there that isn't wholly satisfactory. I'm slightly rephrasing the question here in the hopes of maybe getting something...

Call recorder C# .NET UWP winrt

26 Mar 2016 by Member 12416797

Hi guys, i'm trying to develop call reorder app for windows 10 using UWP platform. But i stucked on audio capture. Tell me plz using what technology i can figure it out.What I have tried:I read about Naudio, but it semms that it doesn't work well with UWP. Also i tryed to use...

Call recorder C# .NET UWP winrt

26 Mar 2016 by Sergey Alexandrovich Kryukov

Please see my article Practical Sound Recorder with Sound Activation[^].It is not a UWP but is in WPF, but it doesn't matter, because its audio part is tiny, clearly written in a separate file and class and can be used anywhere where you can use legacy Windows API. Actually, this part of API...

Call rest service in universal app

10 Mar 2016 by TimWallace

My client wants a Windows 10 kisok application written in WPF. This app needs to communicate to a RESTful API hosted on AWS. In my service layer, I am trying to use HttpClient to perform a simple GET with no parameters, no body. The call never works, and, to make matters worse, I get the...

Can I use C# unsafe code in my UWP application?

1 Aug 2017 by Member 13340628

I heard that Windows 8 Phone apps must be type-safe MSIL to be placed in the Windows App Store. Is this right? And what about Windows 10 UWP? I need to use fast unsafe code with pointers in my UWP app, but I don't know if there any limitations for Windows Store programs. What I have tried: ...

Convert Desktop Applications to Universal Windows Platform Apps - Project Centennial

14 Jun 2016 by koolprasad2003

How to convert our existing lassic Windows/WPF/Win32 desktop apps to UWA? Project Centennial.

Core Text Edit Context

15 Dec 2015 by DL001

Does anybody know of any example code that is using CoreTextEditContext. I have googled this up and down to no avail, and the msdn docs are anorexic at best.In particular I am struggling to understand how to use the CompositionStarted and CompositionCompleted events.Any help or link...

CoreObjects/GoliahCore17: *.* for plain C

3 Jan 2019 by Sauro Abbondanzieri

UWP, COM, C++/WinRT, OOP in plain C. What else?

Creating a Settings Screen for UWP with Codon

29 Mar 2019 by Daniel Vaughan

Create a dynamic settings screen for your UWP app. Add a setting with a single line of code.

Creating Mixed Dimension application for HoloLens

15 Jun 2017 by Vinothkumar Arputharaj

This article will show how to create a mixed dimension (2d+3D) application on HoloLens and switch between 2D and 3D views

Cryptojs encryption and decryption in UWP C#

18 Apr 2020 by Member 14805662

I have a video URL link which is encrypted using CryptoJS on a server and my job in my Universal Windows App in c# is to decrypt the sent content and get the original video URL link. I have tried to use AES Decryption but still getting errors....

Cryptojs encryption and decryption in UWP C#

18 Apr 2020 by #realJSOP

Have you looked at this link? Google Groups - Crypto JS[^] If that doesn't help, I googled "decrypt cryptojs with c#, and got these results: DuckDuckGo — Privacy, simplified.[^]

Data Storage with UWP

29 Jun 2016 by Joel Ivory Johnson

The storage APIs available to UWP applications are a little different than those in other .Net environments. This article will introduce you to the storage concepts specific to UWP with examples of how to use many of them.

Datacontext becomes null when I use containercontentchanging

30 Jun 2021 by Philosopheur

I have a GridView which display an image in a Grid. This App is based on PhotoLab Sample. ImageGridView_ContainerContentChanging is called when GridWiew is populated. When it's done, I would like to use RightTapped on the grid (which contains an...

Datagrid in UWP xamarin with select all check box

2 Aug 2019 by ketan Ram Patil

hello friends currently i am working on Data grid in uwp i have created the grid view but i don't know how to add the selcect all checkbox as header in uwp xamarin the code which i have tried it display datagrid perfectly but i don't know how to add the checkbox at header for select all check...

Datagrid in UWP xamarin with select all check box

21 Feb 2019 by Gerry Schmitz

Use the columns' "Header" object to put "stuff" in the header. The header is / was typically used to show an up or down glyph when sorting a column "after clicking the header". Some other convention was to simply "select all" when you "clicked" the header. You have a new "pattern".

Deploy a UWP project generated with xamarin

10 Oct 2017 by canard29

Hi, I created a Cross platform App "MaintenanceApp" with Xamarin with Visual 2017 Community. The solution has a project for Android, iOS and UWP. I didn't change the code yet. Everything is compiling. The iOS project is starting well (I'm using a Virtual Machine with Windows on a Macbook...

Deploy a UWP project generated with xamarin

10 Oct 2017 by canard29

I found the solution. The problem is due to the virtual machine. It's sharing the folders with Windows. Instead trying to deploy on the local machine, I have to deploy on localhost.

Edit Template or Edit Additional Templates in Visual Studio XAML without all the Bloat

18 Jun 2020 by SoundersFan

How to edit templates in VS XAML without the bloat

Equaliy operator == behave differ for WPF and UWP

27 Feb 2017 by Member 11272589

Equaliy Operator == is not working in Universal WindowsWhat I have tried:Am trying to compare two objects of value as keyvaluepair using equality operator . The condition was set true in WPF and get false in Universal Windows.But using equal() get true in both WPF and UWP. Is the...

Equaliy operator == behave differ for WPF and UWP

27 Feb 2017 by Member 11272589

Hi All,This below code is my actual requirement. public partial class MainWindow : Window { public List> Collection { get; set; } public MainWindow() { InitializeComponent(); ...

Extending Content/Message Dialog Class in UWP to Avoid Crash

31 Mar 2017 by P_Dash

Showing multiple dialogs concurrently in UWP

Windows-Phone-8

Fake Band - The Microsoft Band Emulator

1 Feb 2016 by Kashif-Sohail

Want to develop apps for Microsoft Band, while having no band device? It is now possible. Test out your app with Band on the Run.

Fill circle with animating waves

2 Sep 2017 by Member 13390259

have a circle (Ellipse) in my windows phone app

Fill circle with animating waves

2 Sep 2017 by Graeme_Grant

Where are you stuck? Is it the WPF VisualBrush? According to the documentation[^]: Quote: Paints an area with a Visual. Now, Google Search is the first place to look. Here is the search that I used: uwp visualbrush - Google Search[^] First search result was this: Composition brushes - UWP app...

Fill textblock with XML data in code behind

30 Mar 2016 by Haechtsuppe

Hey mates,normally I am using a MS SQL Server to store/load information but now I am playing with UWP on my Lumia and it is great. But now I want to load content from a local file and display it in a Textblock.I have not worked for years with XML, so here's the file: ...