Recent questions tagged C#

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I have some images that i added to imageList Cotrol manually. Now i need remove thart images from imageList depending ... . How should i do 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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c# - Connect to On Prem SQL server from Azure Web app

I have .Net application at on prim. I want to host it at Azure but don't want to move database. I ... connection to SQL Server) Thanks, Umesh 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# - $select and $expand break ODataQueryOptions -- how to fix?

We are using Microsoft ASP.NET MVC OData WebAPI for our web services. Because of some data architecture issues surrounding ... at a loss here... 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# - MongoDB.Driver.Builders how to group and get average

We are using the C# MongoDB driver, and we would like to group on the Date part of a timestamp and get ... solution, question 1 or question 2. 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# - Send JSON to webmethod?

How can i send a JSON object to a webmethod using jQuery? See Question&Answers more detail:os...

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

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287 views

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c# - binary file to string

i'm trying to read a binary file (for example an executable) into a string, then write it back FileStream fs = ... i must save it to a string 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# - WPF ComboBox binding ItemsSource

I'm a beginner on WPF and trying to bind the Items of a ComboBox to an ObservableCollection I used this code: XAML ... me what I'm doing wrong? 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# - Sharing OAuth Tokens Across Two Web API projects

I have created a Web API application with OAuth token authentication. This worked without issue when ... (oauthBearerOptions); } See Question&Answers more detail:os...

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

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501 views

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c# - boxing and unboxing in int and string

I am little bit confused in boxing and unboxing. According to its definition Boxing is implicit conversion of ValueTypes ... unboxing or not??? 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# - INotifyPropertyChanged causes cross-thread error

Here is my scenarion: I have a GridControl bound to a BindingList. At first what I was doing was ... PropertyChangedEventArgs(name)); } } See Question&Answers more detail:os...

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

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287 views

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c# - Linq - Order by number then letters

I have a list of strings, and these strings contain numbers and words. What I wanted to do is order it ... (letterVoltage) Thanks for the 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# - What consumes less resources and is faster File.AppendText or File.WriteAllText storing first in StringBuilder?

I have to write thousands of dynamically generated lines to a text file. I have two choices, Which consumes less ... dataItem.Property3)); } } 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 a CheckBox in Word using OpenXML

How does one get a handle to a CheckBox control that's embedded in a Word document using OpenXML? ... seems cumbersome. Suggestions welcome. See Question&Answers more detail:os...

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

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246 views

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c# - A control with ID could not be found for the trigger in UpdatePanel

I have an update panel that has UpdateMode of Conditional and ChildrenAsTriggers set to false. I only want a few ... can I get around 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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577 views

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c# - LINQ to Entities equivalent of sql "TOP(n) WITH TIES"

I have been searcing for LINQ equivalent of WITH TIES in sql server lately, I came across a couple ... and open for alternative solutions. See Question&Answers more detail:os...

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

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662 views

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c# - An exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll

When I execute my code below, this error message occurs: "An exception of type 'System.Data.SqlClient.SqlException' ... how can I 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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177 views

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c# - How to set up IoC when a key class needs Session (or other context-specific variable)

I am trying to figure out how to use IoC in situations where the dependent classes can change based on some ... example is just for brevity). 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# - Pass current object type into base constructor call

How do I grab the Type of the inherited class and pass it into the base constructor of the class ... className, MyObject myObject) constructor. 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# - How to normalize a list of int values

I have a list of int values: List<int> histogram; How do I normalize all values so that the max value in the list is always 100? 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# - Good way to convert between short and bytes?

I need to take pairs of bytes in, and output shorts, and take shorts in and output pairs of bytes. Here ... do this already in the framework? 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

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c# - Is there an alternative to AppDomain.GetAssemblies on portable library?

I'm looking for a way to get the current app's assemblies inside a portable library project. In ... domain assemblies on portable library? See Question&Answers more detail:os...

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

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198 views

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c# - Has anyone implemented a Regex and/or Xml parser around StringBuilders or Streams?

I'm building a stress-testing client that hammers servers and analyzes responses using as many threads as the client can ... ); } return sb; } See Question&Answers more detail:os...

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

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538 views

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c# - How to find datakey value of gridview on selected index changed property?

My gridview is like this but I am getting error when I select view button to find primary key value column on ... (Exception) { throw; } } See Question&Answers more detail:os...

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

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366 views

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c# - Winforms WPF Interop - WPF content fails to paint

I have a WinForm that uses an ElementHost to display a WPF UserControl. Once every 50 times or so when the ... Can anyone suggest a 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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426 views

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c# - Send eml files saved on disk

I am creating eml's and saving them to a directory using procedure mentioned over here. I want to know how ... using these saved eml 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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305 views

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c# - How can I use IConfiguration from my integration tests?

I have an API, and I'm trying to make some integration tests for it with XUnit. Here's my API controller ... a proper 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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218 views

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c# - Generics and Parent/Child architecture

I'm building an architecture with inheritable generics and parent-children relations. I have one major problem: I can't ... be accessed! } } } See Question&Answers more detail:os...

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

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855 views

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c# - Casting TResult in Task<TResult> to System.Object

I am loading an assembly and calling a static method that will create a new object of type MyClass1 (this ... any help resolving this issue. See Question&Answers more detail:os...

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

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