visual studio

Why do some C# applications have an app.config file and others do not? Both of these solutions were initialized as Visual C# Windows Form Applications.

Please help me someone ,just I want to know that Can I use visual-studio-2019 to target all .NET frameworks Like 4.0 to 4.8.1 version wise all new features and new changes will be applied in visual studio 2019 means version wise all new changes of c#.net, asp.net and asp.net-MVC will be applied...

I have this visual studio c# wpf program that I created a year back using online tutorials and stuff and I need to add more stuff to the project. But lot of stuff I dont remember so I am trying to just copy paste and edit it. But here comes the first problem. So in the solution explorer under...

It's been weeks of searching everywhere but couldn't find any help and finally i'm posting my query here. I'm not finding a way to integrate Skype Personal (Not Skype Business/Lync) in my c# application. I just want to receive Skype messages on my application from the skype installed on the...

I apologize in advance it this is a duplicate. I can't fine the one I tried to post yesterday. I downloaded a library for use in my C# application. It has the DLL which I added the controls to the toolbox by referencing the DLL. The library folder also includes the source for each...

Hello, Can you please help me with this post: https://developercommunity.visualstudio.com/t/Instaling-error-at-the-end-of-process/1610757?entry=myfeedback&space=8 regards,

Dear VS and C# Experts, I am a Medical Physicist with some past sporadic experience of writing sort of C++ code. I have not had many chances to keep up and broaden my programming skills. Over the last 3 years, I mostly developed MatLab scripts. Therefore, I lost sight of the difficulties...

Hello, everyone! Excuse me for taking the liberty of asking you for help with a publishing project I have started. If possible, I would like to ask you to publish a post on your blog or in your technical community, indicating this link: (Free preview) My new book "Programming in C# – Basic...

Good day, i develope a plugin whit C# and beepinex in Visual studio. And i am want to check if ... key is pressed, i searched allot about this theme but i found nothink what can i do? using UnityEngine; using System.Collections; using BepInEx; using HarmonyLib; namespace SetOwnValues {...

Hi, I've recently set up a virtual assistant in visual studio and when running the program, it gives me the following error: "LuisService.Region cannot be Null" I'm completely new to Azure so I'm not entirely sure what this means. Can anyone help? I've attached an image to give you more...

Hi, I´m currently wokring on an application, the purpose of the app is to display a message with a text, then you should be able to close the message down (like a notification). The message should be displayed after a couple of seconds. So what i need help with is to understand how to show the...

I’m studying a masters in computing systems and I’m at that point now where I need to start planning what I’m going to do for my final project. During the course I’ve created two programs using .net framework. The first one was a medical related application where I managed data through JSON...

Hello, Using Visual Studio 2019. I need to connect to one of our Office 365 Sharepoint Sites and have the ability to simply add files via code. I am ONLY connect to the remote sharepoint site and do not have sharepoint server running on my Windows 10 OS. I get an error on the very first step...

Initially I was concatenating my SQL queries, i was then informed that it would be best to use parameterized queries to prevent SQL Injection. I've now done that and everything works fine, however when posting on a forum yesterday about one of my queries not working properly, a person told me...

I have a sign in method, which stores the details of a user based on the password and email that they enter. Within this method i call a function which stores those details inside of a list. My question is how would i be able to access those individual values? I want to be able to access just...

When signing up data will be stored within two tables. customerLogin and customer. The code for this is shown below, it works the way i want it to, inserting the correct details into both tables. { string query_1 = "Insert into customer (firstName...

I'm trying to execute the following query, but its throwing an exception "Must declare the scalar variable \@dateFrom\ "." Does anyone maybe know why this is occurring? the dataType for dateOfDeparture is date. when i was using concatenation i was providing the format of the date...

Hello, when i drag a custom picture box onto my user control and run the application i can see it, however if i place the item on top of the panel i cant. Does anyone know how i can get round this? See image below, items under seat reservation aren't visible.

I made a Seat class and inherited the PictureBox class: class seat : PictureBox { public string Row { get; set; } public int Number { get; set; } public string Seat => $"{Row}{Number}"; public bool Available { get; set; } } } I'm getting the...

I've tried to achieve this by creating a leave event on the user control, but the message Box isn't appearing for some reason. I also have a panel in front of the user control which I'm thinking might be the issue? Below is the code i have so far: private void...