Questions tagged [.net]
The .NET Framework is a software framework for Microsoft Windows operating systems. It includes an implementation of the Base Class Library, Common Language Runtime, and Dynamic Language Runtime. It supports many programming languages, including C#, VB.NET, F# and C++.
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questions with no upvoted or accepted answers
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Clarification about Event Producer in StreamInsight
I need a small clarification about StreamInsight, I know by doc's that StreamInsight can handle multiple concurrent Events. But will the event producer be a separate function, for ex: I need to watch ...
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0
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473
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Using C# to implement an F# type provider
I am in a situation where I believe type providers would be useful. Consuming type provider in F# could be the way I finally dip my toes in F#.
However, I understand that writing type providers is ...
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votes
1
answer
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DDD / Onion architecture in JavaScript
One reason I like .NET is because the 'solutions' and 'projects' lends themselves to good architecture.
Good architecture makes it easy to follow the happy path of Domain-Driven Design.
I've fallen ...
- 2,110
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158
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Designing ABAC-style Authorization module with Row-level security
I'm designing the Authorization part of the AAA module of a business software suite.
Requirements:
There are Users and Groups, and you can assign Permissions to any of those.
You can Grant or ...
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3
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463
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How to separate data layer from business layer?
My current .NET project looks like below:
Solution (.sln)
--BusinessProject A (.proj)
--BusinessProject B (.proj)
--DataLayer (.proj)
--A separate project calling ExternalService 1 (folder)
--A ...
3
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answers
99
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Designing a web based smart card publisher
I'm working on an application that's supposed to have a web based GUI where you can insert some data. That data will be saved in persistent storage and a hex number generated and stored alongside. ...
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Best approach for several steps with user input in between
I've read several questions and I couldn't find one specifically similar to mine. I also don't think there's a design pattern for this situation as I think my system is a legacy system and don't fit ...
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2
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137
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Better dynamic user permissions
I support an Internal ERP system and an external Reporting/Dashboard that our customers use that both use the same database.
Internal normal application users can control what customers can access ...
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2
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267
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Callback pattern handling exceptions - Best practices in .NET 3.5
I am looking to implement the callback pattern with error handling such that error is caught and pass to the callback code with the response. Since I am using .NET 3.5, I cant use Task (TAP) pattern ...
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327
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Handling permissions in a MVP application
In a windows forms payroll application employing MVP pattern (for a small scale client) I'm planing user permission handling as follows (permission based) as basically its implementation should be ...
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Source control: projects which share a 3rd library which is still under development in RTC
this is not a new question for source control, but IBM's Rational Team Concert is a slightly different animal than Git, SVN, etc.
We have a number of .NET web sites under development with Visual ...
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Software License for project using .NET and Sql Server Express
I considering making my application open source on github. I don't intend to sell it (neither in binary form nor source code form). It probably isn't even useful to a lot of people except maybe for ...
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2
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969
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C#: Use Double Await Cause Issues?
We have Application service Method, which extracts data from SQL database using Entity Framework Core .
Its Async method along with the Async Controller.
Service:
public async Task<IEnumerable<...
user370878
1
vote
1
answer
220
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Reduce Code Repetition for a Simple CQRS
We're currently exploring CQRS in our future applications. To give a bit of a background, we use a simple CRUD-style service before something like this.
Old Pattern:
Controller
Command/Service
Model
...
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1
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0
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VM-images: how protect time-license programs?
One big customer asked me to supply my program to run within a balanced VM-images structure; I mean, the program will be recorded into an image which will be launched in "instances" to ...
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How to implement timing-mechanism for fantasy draft process utilizing ASP.NET Core 3.1 SignalR
I have developed a Fantasy Draft system utilizing ASP.NET Core SignalR, along with Azure's SignalR service (for backplane/scaling stuff).
Last year I utilized a poor-mans' javascript version that just ...
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303
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Application Service Layer referring to two Layers, and Database Entity Copy Layer with DTO Layer?
I am trying to review our current architecture.
These are the current layers, trying to analyze them, and see if the following three ideas are good practice.
DatabaseSQLStorage ---> Entity Framework ...
user354368
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59
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"Add-On" Projects and ASP.NET Core with Entity Framework
I've created a .NET Core MVC product with Entity Framework, and am being tasked with creating "Add-on" products, which give CRUD operations to more tables, but use the same library functions and UI.
...
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128
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Wrapper method for ConfigureAwait(false)?
Does it make sense to declare a async method as private and then create a public method to act as a wrapper that calls the private method with ConfigureAwait(false)?
The intended purpose is design an ...
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0
answers
169
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Is there a pattern/cleaner way of saving a large object with multiple nested classes?
I'm in the midst of a rather large project which involves decomposing a very old and large ColdFusion legacy application and creating some .NET services in it's place. Due to this, there are some ...
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What is the best way to implement an HTTP endpoint with different return types?
I need to make an HTTP endpoint with different return types based on query params. There are several options to do that:
Return an object with one property set and the rest equal to null:
public ...
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Does a manufacturing plant need to have CMMI (Level 2 or otherwise) compliance?
I'm giving a presentation tomorrow on Software Process and Machine Learning. My primary goal with the process slides are to get across that most of it is really reliant on project management and ...
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319
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Centralized management of app.config parts for self-hosted .NET services
What will be the best way to handle these scenarios, if they are not one-time, but regular:
Self-hosted services on quite a bunch of machines are needed to be reconfigured to a different database in ...
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use of minOccurs="0" without nillable="true" in SOAP
I have received an XSD from a 3rd party supplier generated from a Java based system; which is to be used to create a SOAP endpoint for us to receive data transfers. Their XSD does not make any use of ...
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937
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Architecture for C# Chat Application - not sure if WCF is right
I had written a WCF based "chat/notification" system but I am questioning my decision if WCF is a good fit.
I have an external 3rd party lib that calls my process when events arrive:
public class ...
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1
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0
answers
103
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Referencing a executable (game-)server
I am currently working on a little MonoGame project. While planning this, i came to a problem: I want to separate the game logic to an other assembly. The client and the server need this logic ...
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482
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Why does the EF query plan cache eviction algorithm reduce the cache to its cleanup trigger size, causing a perpetual cleanup?
The cache eviction algorithm for query plan caching in Entity Framework is described in section 3.2.2 as this:
Once the cache contains a set number of entries (800), we start a timer that ...
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174
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Should all public API POCO value-type properties be nullables?
I use nullable value types a lot when designing classes that have properties which may remain null, i.e. when the object is being persisted. For example:
public int? MyProperty { get; set; }
My ...
- 889
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450
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Reading large files for ETL program POC
I'm looking for some information on how to increase the performance of reading large text files for use in an ETL process.
We're currently using a proprietary program that is more of a scripting ...
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195
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Switch Configuration of Several .Net Programs for Several Sections in a Simple Way
We build a highly configurable .Net Client/Server application.
(Client is C#/WPF, Server is C#/WebService)
There is a single code base, but each customer has its own 'profile'.
The profile contains:...
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Preloading expensive resources
I have a significant quantity of external resources that I need to load. It takes about 5 minutes to fully load (about 16 gigs of data). These are basically third party image patterns that I have to ...
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420
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Mono: C call into managed with COM Interop
I am trying to design a managed library to implement -what appear to be- unmanaged VST3 plugins. The VST3 plugin interface is a C/C++ interface-based API that is compatible with COM (ref-counting, ...
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2
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2k
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Repository Pattern: Doctrine2 vs Microsoft Entity Framework?
I have been using Symfony2 with Doctrine2 for some years. I have recently started using Microsoft's Entity Framework with MVC5. From my Symfony2 experience I understand that a repository's job is only ...
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Large invoice database structure and rendering
Our client has a MS SQL database that has 1 million customer invoice records in it. Using the database, our client wants its customers to be able to log into a frontend web site and then be able to ...
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137
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Implement SSO login with or without Membership
I need to implement SSO for four different domains, say
abc.com
pqr.com
sql.com
xyz.com
Now, I have already login system for two of my applications using Membership. But now requirement is changed, ...
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Updating GUI in 'realtime' using events
My Plan
Have a system that holds some objects
Have a winforms-form that displays some key values of these objects
When certain changes occur(object gets add / removed / datat change): Update GUI
My ...
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Strong Name signing order for dependant projects
I have two project A(.EXE) and B(.DLL) in the solution. A references B. If I delay sign both and send them for full signing. Will A be able to load B after ? Or do I have to get B fully signed first, ...
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Is OAuth (2.0) is the right choice to make WCF WebService secure?
I have WCF webservice which serves to various mobile application. This was implemented with typical HTTPS/SSL. But there are some cases like Replay Attack needs to be considered in the security aspect....
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1
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1
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645
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Architecture for Windows 7 Embedded and Windows 10 IoT
I am in the process of refactoring a large application originally written in .NET 2.0, running on an old version of Microsoft's Compact Framework. The idea is to refactor and rewrite the code so that ...
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What is the best and most optimized way to return a filestream from a .NET WCF SOAP service?
To give some background, i have a WCF SOAP service in .NET that needs to return pdf files. This service will be used by multiple application, many times in a day. The size of the files returned varies ...
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vote
1
answer
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.NET software design and Oracle ODP.NET UDT
I'm working on a new common .NET software design (mainly) for WCF-based web service applications with related client frontends (all written in C#). As far I've chosen some frameworks (NUnit,Autofac/...
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Replacement for WCF ServiceBus Relay in .Net 7
We've leveraged WCF Azure Service Bus Relay fairly heavily in the past and have a number of C# services that rely on it.
All of these services relay REST requests to small on-site servers that sit ...
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131
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Decoupling thirty dependencies for projects that reference each other in a sequence
I am working on a simple interface to SharePoint via Graph API. I have created a project that references Azure.Core, Azure.Identity, Microsoft.Graph, and other dependencies required to make calls via ...
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Decide pattern(s) for Background service which has dependency on services and service-provider and ServiceBus in .net
I'm designing class library with background service which has
public static class ServiceCollectionExtensions
Which have few methods which will be call outside.
Now above mentioned extension will ...
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0
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91
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How to use an external event queue with inversion of control (IoC)
I'm working on an AspNetCore application, with a requirement to raise and handle certain events asynchronously using an external event queue. I'll use AWS services as examples here because that's what ...
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1
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270
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Forwarding websocket messages to many clients
I have a wesocket api that constantly send positiondata of many clients as websocket messages. I want to build a web api that connects to the websocket endpoint to receive the positiondata. If a ...
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803
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app.config vs. appsettings.json in WPF .NET Framework app
I am building a .NET Framework WPF application, however, I want to use IConfigurationBuilder, which is a part of the newer (.NET Core and up) Microsoft.Extensions.Configuration namespace. My ...
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205
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C# Azure Function Durable Function Vs Batch Timer Trigger Function
I have a question related to the best approach when resources are limited, such as on the Azure Function consumption plan.
I have an IoT device, and the number of IoT devices is likely to increase to ...
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227
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Domain Modeling / Architecture
I'm experimenting with some projects at the moment and I am stuck trying to decide on the correct approach to this question.
Given a simple architecture like this consisting of
Domain - (Person and ...
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0
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814
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How inter-process communication is handled on .NET Core?
I have to implement a bi-directional communication between two local process with support to backward compatibility .NET Core/NET Framework and platform architecture x86/x64.
The options that i have ...
