Recent questions tagged C#

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c# - How can I pass slash and other 'url sensitive' characters to a WCF REST service?

I have a REST WCF service that has a method that gets a parameter as a string. This string can contain slash / ... see it in my answer bellow. 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# - Could not load file or assembly 'System.Net.Http' or one of its dependencies

Maybe Relevant information: I have a web application I built with .net 4.5. I wanted to deploy to Azure's ... close/open VS, and clean/build. See Question&Answers more detail:os...

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

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425 views

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c# - Blank space after file extension -> weird FileInfo behaviour

Somehow a file has appeared in one of my directories, and it has space at the end of its extension - its name ... boy am I curious 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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236 views

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c# - When opening an oracle connection, connection object is null

I am trying to connect to an oracle database in my controller: using Oracle.DataAccess.Client; using ... Boolean& completedSynchronously) +155 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# - Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib, Version=4.0.0.0 Error

My .NET site is working fine on Localhost. But, on my Server. I get this error. "Could not load type 'System. ... ASP.NET Version:4.0.30319.272 See Question&Answers more detail:os...

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

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656 views

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c# - Append to a text file using WriteAllLines

I am using the following code to write in a text file. My problem is that every time the following code is executed ... "~/logger.txt"), lines); 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 exactly IAppBuilder.CreatePerOwinContext<T> should be used?

I'm confused on how the OWIN CreatePerOwinContext method is to be used. As far as I can see it's a poor ... = context.Get<IUserService>(???); 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# - asp.net core docker container using Oracle Managed Driver Core. throws ORA-00604 and ORA-01882 when opening connection

I am receiving the below exception when trying to connect to an oracle database using the Oracle Managed Data ... inside a docker container. 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# - Get value from DataGridViewCheckBoxCell

I am working on a DataGridView called ListingGrid trying to activate / deactivate users that have been "checked" ... an invalid cast exception. See Question&Answers more detail:os...

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

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533 views

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c# - Why doesn't the RequestAdditionalTime() method work on restart in Vista/7?

I have been doing some extensive testing of a Windows Service I have been writing in C# .Net 3.5. I am having ... in Xp but not in Vista/7. 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# multiple inheritance

I would like to achieve this in C# (Pseudocode) class A; class B : A; class C : A, B; ... A ac = (A)c; ... B bc = (B)c; Is this possible? See Question&Answers more detail:os...

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

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303 views

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c# - Allowing one column to be edited but not another

i have an asp.net c# application. my gridview has a datasource that has 2 fields. 1 field cannot be edited by ... ! is this possible to do? See Question&Answers more detail:os...

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

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493 views

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c# - How to call DB function from EF LINQ query?

In my database I have define some function, let's say it's called fnTest. Is it possible to call that ... and write the query manually? See Question&Answers more detail:os...

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

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469 views

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c# - Why Thread.Join() DOES NOT hang my application when called on UI thread?

In my understanding (I am not good in threading), Join() blocks calling thread until thread on which Join() ... Framework 4.0 if that matters. See Question&Answers more detail:os...

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

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547 views

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c# - LINQ Expression Conversion / Concat from Int to string

I want to Concat two expressions for the final expression Expression<Func<T, string>> So I have created ... string>>(body, parameter); See Question&Answers more detail:os...

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

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335 views

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c# - Windows form application exception

I get application exception at System.Windows.Forms.CurrencyManager.get_Item(Int32 index) at System.Windows.Forms. ... to debug 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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387 views

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c# - Releasing a Mutex

I have a web application that needs to utilise an application cache to store data (due to the high overhead of ... code to avoid this 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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328 views

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c# - Get properties of a Dynamic Type

I would like to know how to get the properties of my dynamic type. This is the function to get ... , ChargesEfile_RIGHT,ChargesGecep_LEFT, etc)? See Question&Answers more detail:os...

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

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474 views

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c# - SQLite with VS2012 and .NET 4.5 -- ANY CPU Build

I've tried looking through the answers for related questions, but haven't found anything that isn't a few years ... a 32bit and 64bit C# world See Question&Answers more detail:os...

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

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450 views

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c# - Getting event via reflection

Iam trying to get the Click event of a button via reflection and this is my code : Assembly assem = Assembly ... when the user presses F1. See Question&Answers more detail:os...

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

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377 views

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c# - How to use Autofac to inject specific implementation in constructor

I have two classes that take a ILastActivityUpdator as a constructor parameter: UserService and ... the LastActivityUpdator? See Question&Answers more detail:os...

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

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314 views

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c# - How do you call a generic method if you only know the type parameter at runtime?

I have this method: public List<T> SomeMethod<T>( params ) where T : new() So I want to call this ... demo taken out of a bigger context. See Question&Answers more detail:os...

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

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660 views

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c# - SqlDataAdapter.Fill - Asynchronous approach

Using C# / .NET 3.5. Currently I'm populating 2 DataTables one after the other using SqlDataAdapter.Fill(). ... , each one filling a DataTable? See Question&Answers more detail:os...

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

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587 views

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c# - Convert SqlDataSource to DataTable and DataView

I have the following SqlDataSource and I want to convert it to DataView and read a column from it: SELECT dbo.Divisions ... . So how 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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363 views

1 answer

c# - Pre and Post Build event parameters

In Visual Studio, can someone point me to a list of available pre- and post-build events parameters? eg. $(TargetDir), etc. 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

1 answer

c# - Paypal Express Checkout: Apply order discount

Have an ecommerce site running ZNode. We send tax, shipping, order total, etc. Everything works fine until ... is being transferred to PayPal. See Question&Answers more detail:os...

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

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656 views

1 answer

c# - Why socket reads 0 bytes when more was available

I discovered that the following code loops with 100% CPU usage: byte[] buffer = new byte[0x10000]; while ( ... and the connection is closed, See Question&Answers more detail:os...

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

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318 views

1 answer

c# - GUI not updating until code is finished

Hey, I have a sequence of code that goes something like this: label.Text = "update 0"; doWork(); label ... done executing. How to overcome 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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