Recent questions tagged C#

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c# - Unable to cast object of type in System.DirectoryServices.AccountManagement.GroupPrincipal

I am Using Method UserPrincipal.Current.ToString() in Domain to Get Current Logged in Domain User ... .AccountManagement.UserPrincipal'. 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# - Map a Dictionary in Entity Framework Code First Approach

I have a dictionary like this: /// <summary> /// Gets the leave entitlement details. /// </summary> /// <value> ... ; } } } Can anyone help me? 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 recursively include collection for each entity from included collection

I have the following where I am trying to include the addresses of the people in the cities of the countries. ... Not sure how to work 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# - What is correct way to combine long-running tasks with async / await pattern?

I have a "High-Precision" timer class that I need to be able to be start, stop & ... TaskCreationOptions.LongRunning, TaskScheduler.Default); 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 page 'Page_Load' firing before Master Page's 'Page_Load' event?

On my Master Page, I have a little method in the Page_Load event that checks to see if a user is logged in, ... 'll fire after the master page? 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 get resources embedded in another project

Let us say I have a C# class library project, which only contains xml files as embedded resources. I would like to ... ' in my 'data' assembly. 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# - Using LINQ to find duplicates across multiple properties

Given a class with the following definition: public class MyTestClass { public int ValueA { get; set; } public ... ValueA and ValueB both = 1 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 isn't Parallel.ForEach running multiple threads?

Today i tried do some optimization to foreach statement, that works on XDocument. Before optimization: foreach ( ... locking of file? 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# - Load JSON string to HttpRequestMessage

I'm writing some tests for my WebAPI web service and cannot figure out how to send JSON to my service method in the test ... }); } throw ex; } } 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# - intersect two lists with different objects

I have a list of ObjA and ObjB as follows: List<ObjA> List1; List<ObjB> List2; Both ObjA and ObjB has a ... I want only the list of Users. 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# - AutoMapper.Map ignore all Null value properties from source object

I'm trying to map 2 objects of the same type. What I want to do is AutoMapper to igonore all the properties, ... ); What might be 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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c# - Force Form To Redraw?

In C# WinForms - I am drawing a line chart in real-time that is based on data received via serial port every ... has been drawn on your form? 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 create an instance of Excel if Excel is not installed

In my C# app, with the help of Excel Interop dll (as reference) i am reading/writing excel files. If ... Interop dll on target machine? 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 read from XLSX (Excel)?

I have a problem with reading from .xlsx (Excel) file. I tried to use: var fileName = @"C: ... ://stackoverflow.com/a/19065266/3146582 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# - VS2008 - Outputting a different file name for Debug/Release configurations

When building a C# application with Visual Studio 2008, is it possible to set a different output filename per ... F5 to start debugging. See Question&Answers more detail:os...

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

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226 views

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c# - Why can't I give a default value as optional parameter except null?

I want to have a optional parameter and set it to default value that I determine, when I do this: private void ... would be the side-effects ? 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# - ASP.Net: Conditional Logic in a ListView's ItemTemplate

I want to show certain parts of an ItemTemplate based according to whether a bound field is null. Take for ... above) in an ItemTemplate ? See Question&Answers more detail:os...

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

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229 views

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c# - Nugets install in visual studio 2015

I try to install the nuget Microsoft.VisualStudio.QualityTools.UnitTestFramework in Visual Studio 2015 in simple project ... Visual Studio 2015? See Question&Answers more detail:os...

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

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334 views

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c# - Path of DLL installed to the GAC

How can I get the (physical) installed path of a DLL that is (may be) registered in GAC? This DLL is a ... can use the Clickonce Data folder) ) See Question&Answers more detail:os...

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

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523 views

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c# - LINQ: adding where clause only when a value is not null

I know a typical way is like this: IQueryable query = from staff in dataContext.Staffs; if(name1 != null) { ... not sure if LINQ is different? 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# - What is the difference between Dock and Anchor

I have a windows form which have a lot of controls in that(Listbox,Groupbox,Combobox,TextBox,ListBox etc). ... between Docking and Anchoring? See Question&Answers more detail:os...

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

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438 views

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c# - How to maintain scroll position on autopostback?

How can I get back to the same position of a page on postback. It always seems to get to the top of the page. ... = "true" But its not working. See Question&Answers more detail:os...

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

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638 views

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c# - When saving an XmlDocument, it ignores the encoding in the XmlDeclaration (UTF8) and uses UTF16

i have the following code: var doc = new XmlDocument(); XmlDeclaration xmlDeclaration = doc.CreateXmlDeclaration("1.0", ... utf-8? Thanks a lot See Question&Answers more detail:os...

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

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360 views

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c# - .NET Reverse Semaphore?

Perhaps it's too late at night, but I can't think of a nice way to do this. I've started a bunch of ... count is 0, rather than non-zero). See Question&Answers more detail:os...

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

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239 views

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c# - Naming convention for private fields

First, I know this question has been asked several times before and that in the end, it is mostly a ... and IntelliSense shows both? 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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267 views

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c# - Include() in LINQ to Entities query

I have the following models in my ASP.NET MVC 3 project: public class Task { public int Id { get; set; } ... ") but how should I fix 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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226 views

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c# - Replace string values in list

I have a collection of strings which contain values like "goalXXvalue,goalXXLength,TestXX". It is a List(of String) I ... Replace("XX", "1")) See Question&Answers more detail:os...

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

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307 views

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c# - When to use preprocessor directives in .net?

I think this is a simple question so I assume I'm missing something obvious. I don't really ever use preprocessor ... ? What am I missing 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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