Recent questions tagged C#

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I have an web application where mobile phone users see a mobile optimized website. The new Samsung Galaxy ... nexus-ice-cream-sandwich-review 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 you omit the parenthesis from attributes with no params?

I noticed when I have [Serializable] instead of [Serializable()], the code still compiles. Is there a rule ... unless I am 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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1.1k views

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c# - Extracting string between two characters?

I want to extract email id between < > for example. input string : "abc" <[email protected]>; "pqr" < ... string : [email protected];[email protected] See Question&Answers more detail:os...

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

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732 views

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c# - Write Access to Program Files folder

my application include a self-updater executable that is used to update the application. One of the first ... Administrator', it works fine See Question&Answers more detail:os...

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

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589 views

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c# - Why can't I change elements from a linq IEnumerable in a for loop?

Yesterday I wrote the following c# code (shortened a bit for legibility): var timeObjects = ( from obj in someList ... to know why this is? See Question&Answers more detail:os...

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

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618 views

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c# - Determine when and which character is added or deleted in a Text Box

I have a simple text box in a WPF application. I need to know when a character was added/deleted in the ... (from the KeyEventArgs). Any ideas? See Question&Answers more detail:os...

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

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886 views

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c# - RedirectToAction to different controller without changing URL

Is it possible to redirect to from one controller(A) action to another controller(B) action without changing URL ... URL in the browser changes 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 MVC Redirect without changing URL(routing)

Goal: I want to be able to type URL: www.mysite.com/NewYork OR www.mysite.com/name-of-business Depending on ... and have it display its 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# - How can I deserialize xml with a default namespace?

I am trying to deserialize an Atom xml generated by one of the internal systems. However, when I try: public static ... can I get it to work? 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 format a column with number decimal with max and min in DataGridView?

I want to format the decimal places displayed and captured in a DataGridView, I have a minimum number of ... Thanks harlam357 & Tom Garske See Question&Answers more detail:os...

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

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653 views

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c# - How can I handle the exception which throws on an external dll?

I have developed a project which uses an external dll as FTPServer, I have created the FTP Server on ... prevent my application from crashing? See Question&Answers more detail:os...

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

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562 views

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c# - Why "Finalize method should not reference any other objects"?

I have been pondering why it is recommended that we should not release managed resources inside finalize. If you ... answer ? thanks, mishal See Question&Answers more detail:os...

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

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877 views

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c# - Entity Framework ISNULL in Where condition

I have a Query in SQL Server : SELECT * FROM MyTable t WHERE ISNULL(t.Status,'') = '' How I can do it in ... WHERE ISNULL(t.Status,'') = '' See Question&Answers more detail:os...

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

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746 views

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c# - Right To Left Language Bracket Reversed

I am using a StringBuilder in C# to append some text, which can be English (left to right) or Arabic (right to left) ... "(???) ???" Any ideas? See Question&Answers more detail:os...

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

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700 views

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c# - Net TCP binding: The URI prefix is not recognized

This really is bugging me for a couple of hours. I created the simplest WCF service using a TCP binding. ... site' looks like this btw: See Question&Answers more detail:os...

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

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722 views

1 answer

c# - JSON.Net incorrectly serializes a two dimensional array to a one dimension

Trying to convert a two dimensional array to a two dimensional JSON.Net array. Is there something wrong with the code below? ... 1],[2,2,2,2]] See Question&Answers more detail:os...

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

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1.4k views

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c# - MD5 hash of blob uploaded on Azure doesnt match with same file on local machine

I am currently working on uploading media on Azure Blob storage. All is working fine except when i try to macth ... way to match both these? See Question&Answers more detail:os...

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

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812 views

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c# - Format condition by expression EPPlus

I am creating excel using EPPlus with conditional formatting. I am using C# code to do conditional formatting but ... filename=Sample1.xlsx"); See Question&Answers more detail:os...

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

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888 views

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c# - unable to import OleDbConnection in dotnet core entity framework

unable to import OleDbConnection in dotnetcore entity framework while transferring data from excel to sqlserver See Question&Answers more detail:os...

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

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492 views

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c# - Type.GetType fails when invoked as method group but not in lambda expression

The following example shows Type.GetType failing in a specific scenario. GetType succeeds when I provide it the ... fails but #3 succeeds. See Question&Answers more detail:os...

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

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952 views

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c# - The type or namespace name 'DataSetExtensions' does not exist in the namespace 'System.Data' (are you missing an assembly reference?)

I know this is a common error but I have the correct reference to the System.Data.DataSetExtensions.dll added ... issue with SQL CLR projects? See Question&Answers more detail:os...

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

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556 views

1 answer

c# - When is it OK to use an XML file to save information?

What reason could there be for using an XML to save information? See Question&Answers more detail:os...

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

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699 views

1 answer

c# - XMLSerialize an ObservableCollection

I am having a problem in the xml serialization of observable collection. Here is what I am serializing: public enum ... application in .NET 4.0. See Question&Answers more detail:os...

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

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594 views

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c# - Entity Framework - Selective Condition on Included Navigation Property

Assume I have these simplified EF generated entities... public class PurchaseOrder { public int POID {get;set;} ... JOINs between the entities? See Question&Answers more detail:os...

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

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650 views

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c# - SOAP requests in .NET

We're trying to use SOAP requests to interact with a booking API using Visual Studio C#. We've ... ' error CS0030: Cannot convert type 'BLL.HRSService.HRSHotelAmenity...

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

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623 views

1 answer

c# - OutputCache VaryByCustom cookie value

Is there a way to set the value of an OutputCache based on a cookie value? For simplicities sake, this is my ... to have Shareable set to true. See Question&Answers more detail:os...

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

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1.3k views

1 answer

c# - System.ComponentModel.Win32Exception when starting process - file not found, but file exists

I am trying to create a manager for my autostarts. It should read an XML file and then start my programs with ... .Forms.ToolTipIcon.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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886 views

1 answer

c# - The remote server returned an error: (405) Method Not Allowed. WCF REST Service

This question is already asked elsewhere but those things are not the solutions for my issue. This is my service ... if u need more information See Question&Answers more detail:os...

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

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