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Great Reads

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 - entity framework core (dbcontext) access to list submember

16 Feb 2018 by #realJSOP

Collections in Entity Framework are exposed as DbSet collections.

entity-framework

UWP_can not start app using startuptask class?

28 Mar 2018 by #realJSOP

Desktop applications cannot be started unless a user is logged in. Configure your app to start at log-in - Windows Developer BlogWindows Developer Blog[^] If you want an app to start at windows reboot/start, it must be a Windows service (which cannot be a UWP app because a Windows service...

How do I fix sqlite error 5: 'database is locked' in UWP enviroment ?

14 Jan 2019 by #realJSOP

Google is your friend: How to Fix SQLite Error Database is Locked - Error Code 5[^]

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.[^]

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

How to convert speech into text in UWP app.

21 Jan 2017 by Afzaal Ahmad Zeeshan

Microsoft developed a lot of samples for UWP and published them for others to download and use on GitHub: Windows-universal-samples/Samples/SpeechRecognitionAndSynthesis at master · Microsoft/Windows-universal-samples · GitHub[^].In future, please do yourself a favor and search the online...

UWP webview save image without downloading

21 Jan 2017 by Afzaal Ahmad Zeeshan

WebView uses the Internet Explorer engine to render the web pages (or Edge in UWP), to get started you can download the sample provided by Microsoft on GitHub: Windows-universal-samples/Samples/WebView at master · Microsoft/Windows-universal-samples · GitHub[^]. You can also learn more about...

Windows-Phone-7

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,...

How to parse musixmatch synced lyrics(subtitles)?

11 Jun 2019 by ahmed walid

(C#)(UWP) How to parse musixmatch synced lyrics from JSON/XML this is the json response {"message":{"header":{"status_code":200,"execute_time":0.0088448524475098},"body":{"subtitle":{"subtitle_id":26648877,"restricted":0,"subtitle_body":"[{\"text\":\"You give me love now...

How do I use web service with parameter in uwp

2 Nov 2022 by Ailiseu Brigitta

hii i am working with uwp project and i don't know how to connect with webservice with parameter in uwp if any one know please teach me What I have tried: i have my web server link which is used to AuthenticateUser { in that link i have xml...

How to find the exception error in uwp

6 Nov 2022 by Ailiseu Brigitta

i am working with uwp i can't able to find the what mistake i have done in the program when i debug the code is running prety well but i am getting exception error . the error i got i have written in // (error) What I have tried: ...

How do I insert new json data in a text file

28 Nov 2022 by Ailiseu Brigitta

i have read the text file i need to insert a new data in the text file this is the method i have read the text file try { var path = @"text file\\GetAllEmp.txt"; string rawJson =...

How do I add data from sqlite server

30 Nov 2022 by Ailiseu Brigitta

i have created add and get function for sqlite server i don't know to call the function i have given the add function in database class i need to call in blanck page 1 the add function is public static void AddEmployee(EmployeeItem...

How to create a search by text box in C#

6 Dec 2022 by Ailiseu Brigitta

I have to create a list of students and I need to create a search bar using text box. The student details are in {studentABC}. I need to filter the students by first name and display in a list. It's not working. What am I doing wrong? What I...

How to create a tree view in uwp xaml

12 Dec 2022 by Ailiseu Brigitta

hii guys i have created a treeview but i can't print the content in the tree view and i can't set the background i have used xmlns:muxc="using:Microsoft.UI.Xaml.Controls" but no use of it can any one find what mistake i have done What I have...

How can I create a table in UWP to store a data

27 Oct 2022 by Ailiseu Brigitta

hii i need help to create a table in uwp with these item to store a data String CREATE_SITEINFO_TABLE = "CREATE TABLE IF NOT EXISTS " + TABLE_SITEINFO + "(" + data_0 + " INTEGER, " + data_1 + " INTEGER, " ...

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()...

Strongly Typed Dependency Property Registration in WPF and UWP

5 Aug 2018 by Ajcek84

Strongly typed dependency property registration implemented for WPF and UWP

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.

Using Google Maps API in UWP C#

6 Mar 2018 by Ali NGame

In this article, I will show you how easy it is to use Google maps in Universal Windows platform

How to acess the textblock in list

8 Jan 2023 by alisa brigita

1. i have a textblock in the list which 2. i need to change the forground of text 3. i need to change the background image of the textblock my problem is i can,t change both text and image if anyone know about this please help...

How to validate URL while calling an API in C# ?

21 May 2016 by Ammar Shaukat

I'm very new to consuming APIs. I'm calling a weather API in C#.Currently I'm making weather Application in UWP ( Universal Windows Platform ). When I run the following code . var client = new HttpClient(); HttpRequestMessage request = new...

How to learn XAML and UWP?

1 Aug 2018 by Ammar Shaukat

I'm trying to learn XAML in order to build UWP apps. I found different places where I can learn it but everywhere, there is a different order of topics in XAML, like someone teaching data binding first and someone teaching " how to enable adds in UWP apps", so I'm confused what should be the way...

[ 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

What is the best API for getting wifi information in C#?

3 Jul 2018 by Ammar Shaukat

I'm working on a C# .NET Framework Application. I've to get Information about Wifi like Wifi SSID Wifi SSID Mac Wifi Local IP Wifi DNS1 and DNS2 Wifi External IP Wifi DHCP Server Wifi Gateway Wifi Link Speed etc Is there any modern C# API available for windows? What I have tried: ...

What is the best API for getting wifi information in C#?

3 Jul 2018 by Ammar Shaukat

I've found the solution. using WifiAdapter class in UWP, you can get all the necessary information using C# in UWP. here is the complete guide to use this class.

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 :-)

How to consume the webservice from UWP (universal windows platform)

28 Jul 2016 by AndrewCharlz

Hi,Actually i have a website hosted online and which has a webservice. Now what i want to do is i want to utilise the hosted webservice.I added new service reference to the project and created an object of the webservice reference.Sref_HomeService.HomeServiceSoapClient obj_ = new...

Why requestaccessasync gives denied by system in phonelinetransportdevice windows

25 Apr 2023 by Aryaveer Chaudhary

DeviceInformationCollection devices = await DeviceInformation.FindAllAsync(PhoneLineTransportDevice.GetDeviceSelector(PhoneLineTransport.Bluetooth)); for (int i = 0; i

Why bluetooth UWP app during connection gives access is denied

8 May 2023 by Aryaveer Chaudhary

this is my code i am trying to setup a rfcomm connection with a mobile device and after that i wanna setup hfp service level connection so that i can call frommy windows pc and it gives Failed to get Bluetooth device from ID...

How do i switch from front to rear camera with combobx in windows 10 universal app

21 Feb 2016 by ATDHEKURTESHI

I am developing windows application.I want to switch from Front Camera to Back Camera with a Combobox in Windows Universal App or in WPF.I have coded something but I don't get where I made a mistake.Here is my code:What I have tried:private async void...

Your UWP Push Notifications Are Now Toast

17 Nov 2015 by BC3Tech

Your UWP Push Notifications are now Toast

How to know if two rectangle touch each others(C#, UWP app)

12 Aug 2017 by BillWoodruff

You need to use the 'RectHelper Class [^] in Windows.UI.Xaml which provides 'Intersect(Rect,Rect) and other useful methods.

How to set a button's image background and keep showing while it is disabled?

19 Apr 2020 by BillWoodruff

By doing this, you would violate Windows user interface guidelines, and confuse users. If you want to "turn off" the behavior you have defined for a Control, here's an example: btnRender.Click -= btnRender_Click; This removes a specific...

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.

UWP - optional parameter with a checkbox

30 Apr 2020 by canard29

Hi, I want to create a textbox and combobox for an optional parameter. the header contains a checkbox to check and the control is enabled to fill the value if the checkbox is not checked, the parameter won{t be used What I have tried: ...

UWP - optional parameter with a checkbox

30 Apr 2020 by canard29

I found a solution by myselves. Just switch checkbox and Textbox

Problem in calling the data base

14 Oct 2022 by CHill60

You need to call the code that is provided in the blog i.e. private void button_Click(object sender, RoutedEventArgs e) { CreateDatabase(); } I advise you rename the event handler to something more meaningful e.g.

How do I check if http requests are being sent by send-async and received by socket stream listener

15 Apr 2017 by Chrisstone07

Im developing an Http proxy server for a UWP application(C#) but face issues with requests sent and received by a creating a socket.I first create a socket stream object and then listen for Http requests sent by send-async to socket stream listener.However i face Http exceptions and sockets...

Moq test with generic interface

13 May 2018 by Christian Graus

Mocking the Create method does not test the Create method. You mock your interface in order to test code that USES your interface, typically because your interface accesses a data store and you're writing unit tests, not integration tests

Multiple locators in universal windows app

4 May 2016 by CodeAsp

Is it possible to have multiple service locator on the app startup? What I have...

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.

Using .resw files with UWP Compiled Bindings

1 Oct 2015 by Daniel Vaughan

IntroductionWith UWP and WinRT, Microsoft introduced a new means for localizability, which differs significantly from the method employed in Silverlight and .NET desktop apps.

UWP Alien Sokoban - Part 1

13 Oct 2016 by Daniel Vaughan

A fun UWP implementation of the game Sokoban, demonstrating some new features of XAML and C# 6.0. Part 1

UWP Alien Sokoban - Part 3

26 Oct 2016 by Daniel Vaughan

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

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.

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.

UWP Alien Sokoban - Part 2

18 Oct 2016 by Daniel Vaughan

A fun UWP implementation of the game Sokoban, demonstrating some new features of XAML and C# 6.0. Part 2

UWP Form Validation with Calcium

22 Jan 2017 by Daniel Vaughan

Implementing synchronous and asynchronous form validation for XAML based apps.

Windows 10 mobile emulator on windows 10 home

19 Aug 2017 by Dave Kreskowiak

If you want to run the emulator, you have no choice but to upgrade Windows 10 to Pro or above.

[ 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...

Issues developing for MODBUS (port 502) in UWP/windows 10

24 Sep 2018 by Dave Kreskowiak

The .NET Framework does not block any of that stuff. UWP apps do, for security reasons. You can, however, put appropriate commands in your app manifest to tell UWP your app requires network access. Read Networking basics - UWP app developer | Microsoft Docs[^]

How can I make my C# .NET application as my windows 10 login screen?

28 May 2020 by Dave Kreskowiak

You cannot replace the logon screen. Doing so would be a MASSIVE security risk. Also, if you could do it, you would need a disposable machine just to test it. Get ANYTHING wrong and you'll cause the code to crash, rendering the machine...

Issue in android emulator MAUI

27 Aug 2021 by Dave Kreskowiak

You should NOT be using a preview product to develop a production application. If you're running into problems with using VS2022, you need to report this problem to Microsoft so they can fix it. THERE IS NO FIX FOR YOUR PROBLEM UNLESS YOU...

How to convert this code to UWP way?

19 Oct 2016 by Dev nagar (Systematix)

Solution 1: Install-Package HtmlAgilityPack[ Nuget package Link ]Solution 2: Parsing Htmlprivate async void Parsing(string website) { try { HttpClient http = new HttpClient(); var response = await...

How to update list view item after click?

31 Jan 2017 by dexi lin

You can add or remove the ListView item by ObservableCollection.Make the ListView item source to ObservableCollection that can update when you add or remove the item.If you want to click the item and the item show more,you can make the Item'content visibility is hide and when you click ,make...

Treeview how do I tell when the user reorganizes the treeview by dragging nodes

26 Jun 2018 by Dirk Bahle

Maybe drag & drop is not supported for a UWP TreeView? Drag and drop between treeview in uwp - Stack Overflow[^]

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...

[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...

How do I properly insert image "chunks" into a grid in a larger image?

10 Jan 2018 by Dylan Green

Put simply, I need help creating an algorithm that places the images in a larger image in a grid. Currently, I'm working on a system that can be used to generate infinite random maps based on the x and y coordinates of a panel. A core piece of functionality is the ability to subdivide this...

How do I print all listview items?

13 Jan 2019 by e.leaf

string _fileName = ""; _fileName = GetSaveDialogFileName(defFileName, ".pdf", "Pdf documents (.pdf)|*.pdf"); if (_fileName == "") return; public static string GetSaveDialogFileName(string defaultFileName, string defaultExt, string filter) ...

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...

Simple software MIDI keyboard for UWP app

28 Mar 2017 by Eidorff

Simple software MIDI keyboard using Microsoft GS Wavetable Synth

How I can zoomin & zoomout images and move all images

10 Jun 2016 by El_Codero

A great Article about Zoom/Pan/Move Images exists here on CP:A WPF Custom Control for Zooming and Panning[^]

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...

How do I see communication exchange in windows desktop application

11 Mar 2022 by englebart

If it uses a database to store info, most DB engines have a way to trace calls to the DB and see the results returned. Ask one of developers about the DB.

How to transfer class data into xaml page ?

5 May 2019 by Er.RajeshKumar

i need to transfer data into xaml page, but i don't understand how can do it?? What I have tried: Frame frame = new Frame(); frame.Navigate(typeof(demoProject.pageName), listofdata); Window.Current.Content = frame; ...