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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8
votes
1answer
934 views

Injecting data processing logic into class

I want find more elegant and appreciate way to inject processors into CommandProcessorDispatcher class. Or it can be another one solution (the goal is separate each command processing logic to ...
7
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1answer
422 views

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 ...
4
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0answers
113 views

Daylight savings time for real time application

I am building an application on windows forms C# that will run in real time 24 hours a day 365 days a year. This application tracks the time that components are out of storage. I am running into a ...
4
votes
1answer
895 views

Writing a Compiler - .reloc section of the COFF

I'm looking for a little bit of direction in writing a compiler. I've written in Common Intermediate Language, C#, and various other .NET languages; I've written my own Metadata Parser and now I'm ...
3
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0answers
35 views

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 ...
3
votes
1answer
284 views

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 ...
3
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0answers
440 views

How can I resolve circular dependency within service layer in a n-tier architecture system?

I am currently starting a new project with a 4-tier architecture design. The layers is set as follow. +------------------+ +---------...
3
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0answers
231 views

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 ...
3
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0answers
364 views

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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0answers
91 views

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. ...
3
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0answers
224 views

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 ...
2
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0answers
117 views

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 ...
2
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0answers
250 views

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 ...
2
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0answers
317 views

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 ...
2
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0answers
53 views

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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2answers
64 views

Separate database in microservice architecture

I'm trying to create project siteWeb and mobile app with clean Architecture and Microservices. create identity service with separate database A and make another api service with other database B. for ...
1
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0answers
69 views

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 ...
1
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0answers
39 views

“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. ...
1
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1answer
133 views

What is the Difference between Reactive Extensions and Message Queue?

I am trying to understand the difference between Reactive Extensions and Message Queue? Are they competing frameworks? Can they be used in conjuction? Started programming, and trying to understand ...
1
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0answers
24 views

DataTable Processing: Want lowest result

(Hi there, not entirely sure if this is the right place to ask, sorry if it isn't!) I am knocking up a fairly quick and dirty Visual Basic.NET application that essentially is a DB UI for my day job, ...
1
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0answers
81 views

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 ...
1
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0answers
89 views

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 ...
1
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0answers
83 views

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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0answers
75 views

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 ...
1
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0answers
282 views

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 ...
1
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0answers
47 views

Securing an Azure Service Bus topic and subscriptions

We are working on a solution that will publish messages on an Azure Service Bus topic but we don't know yet which other team or even third party might be interested in subscribing to those messages in ...
1
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1answer
6k views

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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0answers
844 views

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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0answers
99 views

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 ...
1
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0answers
412 views

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 ...
1
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0answers
124 views

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 ...
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0answers
381 views

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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0answers
190 views

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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0answers
43 views

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 ...
1
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0answers
360 views

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, ...
1
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0answers
392 views

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 ...
1
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0answers
114 views

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, ...
1
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0answers
3k views

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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0answers
81 views

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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0answers
893 views

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....
1
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1answer
523 views

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 ...
1
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1answer
726 views

MVVM with DI, view model location and shared service data

I have a couple of questions regarding MVVM view models. I have 3 view models in my scenario, which I have put together a shorter sample below. I was looking for a nice solution for 3 views working ...
1
vote
1answer
1k views

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 ...
1
vote
1answer
2k views

.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/...
0
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0answers
103 views

Design Decision - MassTransit or NetMQ

We work in a traveling company. We sell tickets for domestic flights, international flights, trains, and buses. Currently, each of these products has its own team members and they use different ...
0
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1answer
38 views

How to design a repository when datasource differs based on DML/READ operations?

We are starting our new application in which we using MS SQL DB for all our insert/update/delete/select ie. both SELECT and DML operations. But, soon we will have two different sources. SQL Server ...
0
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0answers
60 views

Need some design advice on my ORM for Immutable objects & ref passing

I'm adding Immutable objects support to my Micro ORM called "Symbiotic" In the case of a create, I need to pass back a newly created version of the value passed in because the object is immutable and ...
0
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0answers
72 views

Synchronization data between API (server) and local database : C#

I hit an API which gives a list of chairs with their location. I save this data in my local database. Whenever I received updated data like add a new chair, update location of the chairs and delete a ...
0
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0answers
154 views

Tradeoffs between Testability and Performance when filtering using SQL vs LINQ

My team has recently decided to adopt the CQRS pattern similar to the one used in the famous Microsoft EShopsOnContainers repository. In this solution, the queries are made in Query classes using ...
0
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0answers
70 views

Separate Class for Current User vs List of Users?

Suppose I have system with a User class, meant to represent one row in a database table of users of the system. There will be queries for the administrator's screen reading a list of all users, in ...