Recent questions tagged C#

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c# - SqlFunction fails to open context connection despite DataAccessKind.Read present

I've got a SqlServer project with a very simple test for a Table-Valued-Function:- [SqlFunction(TableDefinition ... for getting this error? 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 make BackgroundWorker ProgressChanged events execute in sequence?

Consider the following code: private static BackgroundWorker bg = new BackgroundWorker(); static void Main(string[] args) { ... 9 9 as a result. 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# - Is SoapHttpClientProtocol thread safe?

I created a Web Service proxy with the "add web reference" feature of VS 2008 (c#). The generated class ... would prevent me from doing 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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c# - Dynamically Ignore WebAPI method on controller for api explorer documentation

we have implemented a webAPI and we have a number of API controllers. We provide an API documentation for our ... help will be 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# - Can Page_Load() Be Async

Can a Page_Load() method be async? I ask as if I have declared as such protected void Page_Load() ... Bind the different returned datasets } 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# - Why does this result in CS0695?

public interface PipelineElement<in TIn, out TOut> { IEnumerable<TOut> Run(IEnumerable<TIn> input, Action<Error> ... MyInterface<int> { } 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# - What's wrong with this expression? Cannot implicitly convert type 'int' to 'byte'

I am getting the error "Cannot implicitly convert type 'int' to 'byte'. An explicit conversion exists (are you missing ... Blue { get; set; } } 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# - LINQ to SQL - How to efficiently do either an AND or an OR search for multiple criteria

I have an ASP.NET MVC site (which uses Linq To Sql for the ORM) and a situation where a client wants a ... that is easy to maintain? Thanks. 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# - Permanently disable Configuration.ProxyCreationEnabled in EF?

Instead of having to do the following on every query, is there a way to just set that value globally? ... makes using the debugger unreasonable. 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# - Bind an ObservableCollection to a ListView

I am having an immense amount of trouble getting my data to bind correctly. I have read most the posts on ... . And ideas would be 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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709 views

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c# - 'System.Net.HttpWebRequest' does not contain a definition for 'GetRequestStream'

I am new to both C# and Windows phone and am trying to make a small app that performs a JSON request ... imported the System.Net package. 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# - WCF OperationContract - which generic collection type should I expose?

I have a WCF web service that has a method that returns a generic collection. Now, my question is: Should ... what you think. Thanks in advance See Question&Answers more detail:os...

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

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583 views

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c# - IPv4 remote address in WCF

Related to How to get the IP address of a WCF remote endpoint? I am using this code to retrieve the remote IP ... ) - any way of forcing 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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396 views

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c# - WebBrowser and javascript window.close()

If I host a WebBrowser in my application, and a javascript code in the web page shown on my WebBrowser ... code should be considered.) 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# - How to use CanExecute with Mvvmcross

I have a Button <Button android:id="@+id/ButtonConnect" android:layout_width="match_parent" android:layout_height=" ... to go about 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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333 views

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c# - Do you use 'this' in front of instance variables?

When accessing instance variables or properties of a class from within the class itself, do you prepend them with "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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447 views

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c# - Weird behavior when setting a row's height on EPPlus

I am building an Excel file with EEPlus under MVC-5 C# application. Everything goes as planned until I set a ... is the excel file in question. See Question&Answers more detail:os...

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

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285 views

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c# - How to read single node value from xml file

Hi i am trying to get value from xml but it shows node null. Here is my xml file. <?xml version="1. ... how i can get MailingGUID value. Thanks See Question&Answers more detail:os...

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

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612 views

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c# - How to make Dispose await for all async methods?

I have disposable class with async methods. class Gateway : IDisposable { public Gateway() {} public void ... Task CancelAllAsync() 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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296 views

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c# - 'Decimal' source code from Microsoft - will it build?

I was recently attempting to answer a question that a user posted about why the decimal struct does not declare ... ? Am I missing something? See Question&Answers more detail:os...

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

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333 views

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c# - Deserializing JSON responses which contain attributes that conflict with keywords

There is an API which I don't control, but whose output I need to consume with C#, preferably using JSON.Net. Here ... there's a way to do that? See Question&Answers more detail:os...

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

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251 views

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c# - How do I find out how many files are in a directory?

I need to get a count of the number of files in a directory. I could get the names of all the files ... count without having to get the names? See Question&Answers more detail:os...

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

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491 views

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c# - Span and two dimensional Arrays

Is it possible to use the new System.Memory Span struct with two dimensional arrays of data? double[,] ... the testMulti array using Span. See Question&Answers more detail:os...

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

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464 views

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c# - Is there a DbSet<TEntity>.Local equivalent in Entity Framework 7?

I need an ObservableCollection<TEntity> in EF7, DbSet<TEntity>.Local doesn't seem to exist; Is there any workaround? See Question&Answers more detail:os...

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

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809 views

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c# - Get list of all checked nodes and its subnodes in treeview

I have a treeview list check boxes and the list contains nodes, subnodes and in some cases subnode of subnode ... get checked items in subnodes? See Question&Answers more detail:os...

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

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537 views

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c# - Why does DateTime.Now.ToString("u") not work?

I am currently in British summer time which is UTC +1 Hour. I confirmed my PC is correct with the ... :00 Is this correct functionality? See Question&Answers more detail:os...

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

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379 views

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c# - Multi-dimensional array vs. One-dimensional

This is basically a restatement of this question: Java: Multi-dimensional array vs. One-dimensional but for C#. ... and I probably want jagged? See Question&Answers more detail:os...

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

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647 views

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c# - Entity Framework MigrationSqlGenerator for SQLite

is there a MigrationSqlGenerator for SQLite to use with entity framework? I only found one from devart which is ... .com/en-gb/data/jj591621 See Question&Answers more detail:os...

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

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