Developer technologies | C#

How to dynamically assign property names for XmlOnlyMediaFormatter

I have been given an ASP.NET project to handle. It has been released and has worked fine. I am not an ASP.NET developer but doing what I can. The issue: The project is a webservice among other things. The solution (VS 2019) has 6 projects. One is the…

Security issues if I use a encrypted value as a Query string that I send to users and then decrypt the value and validate on link click?

I'm working on a project where we will need to send out links to a large number users and each is assigned a unique combination of numbers and letters to identify them in our system. My task it to come up with a way we can use just the link we send them…

Creating a new List<int>() throws a NullReferenceException.

The following code throw a NullReferenceException on the hightlighted line: using IS0AUTTSTContext db = GetDbContext(); List<TestRun> list = db.TestRuns.Where(t => t.ID > 0 && t.Definition!.Application!.Deleted == false).ToList(); …

C# to C++/MFC duplex mode - Concept

Hello, I have a static MFC C++ application, I cannot change it. (CLI is not possible) I now need to pass data from a C# DLL in the C++ application and transfer it from the C++ to the C# DLL. What possibilities do I have to implement this…

If class variable stored in stack and object in the managed heap then where the class properties get stored in C# .NET?

If I create an Employee class and this class have 2 members EmployeeId and EmployeeName so where these properties and it's value get stored either in managed heap or stack or both in C# .NET?

Abort is not supported on this platform. Need guidence. How to solve this issue? i am working on splash screen.

WinForms DataGridView: Prevent Enter from moving to the next row and move focus to another column in the same row

I'm using a WinForms DataGridView for entering sales invoice items. Suppose my grid looks like this: Row Qty Net Rate 1 5 ... -------- -------- -------- 1 5 ... 2 6 ... 3 (new empty row) If I edit Row 2 and change the quantity from 6…

How to read the HTTP Body in an IIS Managed Module without breaking an ASP.NET Core Azure Web App?

I am trying to intercept and read incoming HTTP traffic using a custom managed .NET module (IHttpModule) on a Windows-based Azure Web App. I am able to successfully fetch the context.Request and context.Response parameters, headers, and metadata.…

where to start if I want to learn C#

where should I start if I want to learn C#, I have no previous C# knowledge, but have a lot of experience in C++

I would like to prevent the "Be careful! Your document may contain personal information that cannot be removed by the Document Inspector." dialog from being displayed when saving a document.

I am trying to create a program to remove property information from a Word document in order to ensure that no personal or client information is left behind. I am using C# code with Microsoft.Office.Interop.Word to initiate Word, and I execute…

Microsoft 365 and Office | Development | Other

Microsoft 365 and Office | Development | Other

Building custom solutions that extend, automate, and integrate Microsoft 365 apps.

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Developer technologies | C#

Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,814 questions

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Linq Query efficiency

Hello, Any ideas on how to make the below more efficient? It is taking too long. The lstAllCombs has 150,000 records. List<SpecLevel> lstRankRangeSumRankPartition = lstAllCombs .GroupBy(p => (p.RankRange0Count, p.RankRange1Count,…

JSON file parsing

consider having different section in the JSON file , how to handle that problem { "connectionString":{ }, "SMTP":{ } }

how to update version in apk maui application automatically?

Hi, i'm using .net maui 8 for Android , and i publish my application in a remote server and when i update my application automatically by comparing version in update.json file. I can't update version in my app. how to do that?

Comparing List<T>

Hello everyone and thanks for the help in advance. I have a WebApi application that accepts a List<tblResults> where the model for tblResults looks like: public class tblResults { public int Record_ID { get; set; } public int Description { get;…

Best ASP.NET approach + modern hybrid mobile tech for content/tool sites like CitizenPass.ca?

I run a portfolio of Canadian-focused content and web tool sites (similar in concept to CitizenPass.ca and CitizenApp.ca — bilingual EN/FR informational platforms with quiz/practice-test style tools, content pages, and a companion mobile app). I'm…

How do I read a text file in C# and convert its contents to Morse code?

I'm building a C# console application in Visual Studio. I want to read text from a .txt file and convert each character to Morse code. What's the best way to organize the character mapping? Should I use a Dictionary<char, string>? A sample…

HttpWebRequest timeout not working

The following code: HttpWebRequest request = (HttpWebRequest)WebRequest.Create(sRequest); // Create(sQuery); request.Credentials = CredentialCache.DefaultCredentials; request.Timeout = 10000; …

Windows for business | Windows Client for IT Pros | Networking | Network connectivity and file sharing

Windows for business | Windows Client for IT Pros | Networking | Network connectivity and file sharing

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Developer technologies | C#

Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

11,814 questions

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Developer technologies | ASP.NET Core | Other

Developer technologies | ASP.NET Core | Other

A set of technologies in .NET for building web applications and web services. Miscellaneous topics that do not fit into specific categories.

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how can i set the path for Dependencies in xxx.deps.json?

Hello, I have a number of DLLs (C# projects) that are loaded by a third-party EXE. Each of these DLLs has a .deps.json file listing its dependencies. The individual DLLs cannot be located in the same directory. If all the dependencies of a DLL are…

How do you read an SMS and MMS message using .NET MAUI (on Android only)?

I'd like to read an SMS and/or MMS message on an Android device only, but from within my .NET MAUI app. Specifically, I want to save any received (MMS) picture that has been texted to me plus any associated (SMS) text. Is this possible with .NET MAUI…

Script not Working for large data in C#

The arrayGroup below will be containing almost 190,000 int arrays. so filtering them to retrieve groups of arrays in the array group that have two or more common digits is taking forever. I am using the linq expression below, any ideas to make this more…