Recent questions tagged C#

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c# - WebActivator.PreApplicationStartMethod does not work

[assembly: WebActivator.PreApplicationStartMethod(typeof(MyApp.App_Start.StructureMapMvc), "Start")] namespace MyApp.App_Start { ... need help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to use FreeText in EF core 2.1

I see that Entity Framework core 2.1 has a new feature to use FREETEXT, but I am not sure how to use it ... and could give me a quick example? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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278 views

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c# - .net Setup Project: How to pass multiple CustomActionData fields

In a .net "Setup Project", it is possible to add one or more custom screens in the setup wizard, with ... text boxes) to the Custom Action? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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394 views

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c# - Bitwise-or operator used on a sign-extended operand in Visual Studio 2015

I just tried installing Visual Studio 2015, and when trying to compile an old project, I got the warning CS0675 ... out in the accepted answer. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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321 views

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c# - "Cannot unregister UpdatePanel with ID 'xxx' since it was not registered with the ScriptManager... " in RadGrid while editing record

Let me cut to the chase. My scenario is as follows: I have custom added fields to filter the RadGrid and ... to fix it. Regards, Hrvoje See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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625 views

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c# - How to do proper Parallel.ForEach, locking and progress reporting

I'm trying to implement the Parallel.ForEach pattern and track progress, but I'm missing something regarding locking. The ... value; } } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Entity Framework 6 and SQL Server Sequences

I am using EF6 with a database first project. We have a requirement to use sequences which was a feature ... Any help is much appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Which part of a GUID is most worth keeping?

I need to generate a unique ID and was considering Guid.NewGuid to do this, which generates something of the form: ... does it just not matter? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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271 views

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c# - Why does implicitly calling toString on a value type cause a box instruction

This is more a 'wonder why' than a specific issue but look at the following code static void Main(string[] args) ... how wrong that is now :) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to Mock a Static Singleton?

I have number of classes I've been asked to add some unit tests to with Rhino Mocks and having some issues ... or mock out the Instance? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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304 views

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c# - Dataflow with splitting work to small jobs and then group again

I need to do this kind of work: Get Page object from database For each page get all images and process them ... to save page with failed images. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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c# - How can I programmatically connect to a VPN?

I have a VPN connection that I keep losing, that I need to connect to our DB server, but every second ... to attempt the database connection. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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560 views

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c# - OAuth 2.0 In .NET With Instagram API

I am working on consuming the Instagram API and I am stuck at step 2 of their OAuth. I have a code from ... the second leg of the OAuth? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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375 views

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c# - Modulus gives wrong outcome?

Could anyone tell me why these two modulus calculations yield two different outcomes? I just need to blame someone or ... Using VS-2017 V15.3.5 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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581 views

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c# - The type or namespace name 'ObservableCollection' could not be found

I am working with Entity Framework in asp.net c# framework 3.5 I have generated entity classes using poco generator ... ? How to resolve it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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475 views

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c# - Is float slower than double? Does 64 bit program run faster than 32 bit program?

Is using float type slower than using double type? I heard that modern Intel and AMD CPUs can do calculations ... the definitive answer on this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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549 views

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c# - How to open SQLite connection in WAL mode

In C#, how to open an SQLite connection in WAL mode? Here is how I open in normal mode: SQLiteConnection connection ... ; // (Perform my query) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

1 answer

c# - Passing delegate function with extra parameters

I have a delegate which looks like the following: public delegate bool ApprovalPrompt(ApprovalType type, int receipt, ... and the callback... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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236 views

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c# - Putting the current thread to sleep

I have a unit of work I'm doing in a thread (not the main thread). Under certain circumstances I would ... resource efficient way to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

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c# - Get a list of distinct items and their count

I have an object, that has many properties but the only two to worry about are: myobject.ID which is an ... the overall solution in my thoughts. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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782 views

1 answer

c# - Creating custom column widths in OpenXML (excel)

I am new to OpenXML (v. 2.5), and I can create rows and cells, but I need to be able to set the ... (); //TODO send document to database } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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271 views

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c# - Run Program from byte array

I have a program stored in byte array. Is it possible to run it inside C#? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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248 views

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c# - What are app domains used for?

I understand roughly what an AppDomain is, however I don't fully understand the uses for an AppDomain. I ... simply spawning many processes? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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623 views

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c# - Is it possible to use Type.GetType with a dynamically loaded assembly?

Say I have this little bit of code: public static void LoadSomething(Type t) { var t1 = Type.GetType(t. ... using the Assembly.Load methods)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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540 views

1 answer

c# - Mongodb Convention packs

How does one use a mongodb ConventionPack in c# I have the following code: MongoDatabase Repository = Server. ... like a data contract)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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386 views

1 answer

c# - Are there any performance issues or caveats with resource (.resx) files?

Resource files seem great for localization of labels and messages, but are they perfect? For example: Is there a ... when using .resx files? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

1 answer

c# - Xamarin UWP project is not being built after creating in Visual Studio 2015

I installed Xamarin for Visual Studio 2015 and I created Xamarin.Forms Portable project. After that I have tried to ... . What is the problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

1 answer

c# - How to moq a NetworkStream in a unit test?

I'm using Moq & NUnit as a unit test framework. I've written a method that is given a NetworkStream object as ... )), resultQueue.ToArray()); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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