Recent questions tagged C#

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I'm working on a project that needs to check the Windows Event Log frequently for certain events. I'm wondering ... log, which is not efficient. 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# - Issue with NotifyIcon not disappearing on Winforms App

I've got a .Net 3.5 C# Winforms app. It's got no GUI as such, just a NotifyIcon with a ContextMenu. I've ... .Restart(); } } Does this 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# - Inheriting List<T> to implement collections a bad idea?

I once read an article by Imaar Spaanjars on how to build 3 tier applications. (http://imar.spaanjaars. ... get rid of the InvalidCastexception? 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# - Length of the data to decrypt is invalid

I'm trying to encrypt and decrypt a file stream over a socket using RijndaelManaged, but I keep bumping into the ... I might be 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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390 views

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c# - Retrieve performance counter value in a language-independent way

Under Windows, performance counters have different names, depending on the operating system language. For ... without performance counters? See Question&Answers more detail:os...

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

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429 views

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c# - ASP.NET Routing - Ignore routes for files with specific extension, regardless of directory

Say I want to remove any mapped routes for files with a certain file extension. RouteTable.Routes.Ignore("{root} ... exception, or not 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# - Marshal.PtrToStructure throwing System.ArgumentException error

I'm attempting to get a KBDLLHOOKSTRUCT from a keyboard-hook's lParam. private static IntPtr HookCallback(int nCode, IntPtr ... I do to fix 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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389 views

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c# - How to decode a string of text from a Base64 to a byte array, and the get the string property of this byte array without data corruption

Ok so I have a string of text, encoded in Base 64 like below: string myText = "abcBASE64TEXTGOESHEREdef=="; ... from OpenSSL are both below: See Question&Answers more detail:os...

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

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300 views

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c# - Check the existence of a record before inserting a new record

I'm using the Ado.net Entity Framework for the first time and I need to check if this record exist before I ... //insert if does not exist } 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# - Posting form data to MVC Core API

I would like to post data to my API using AJAX but I'm having issues. I'm using Fiddler to test my API and I' ... AJAX and get a 400 as well). See Question&Answers more detail:os...

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

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324 views

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c# - What is the purpose of StreamReader when Stream.Read() exists?

This has been bugging me. I know Stream is an abstract class and therefore can't be instantiated but ... regarding this particular case. See Question&Answers more detail:os...

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

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477 views

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c# - Convert character entities to their unicode equivalents

I have html encoded strings in a database, but many of the character entities are not just the standard & ... the most common like &. See Question&Answers more detail:os...

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

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256 views

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c# - Linq - Select Date from DateTime

I have a Linq Result from which I need to select only Date from DateTime. My Query goes like ... entity navigation properties are supported. See Question&Answers more detail:os...

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

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222 views

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c# - WebBrowser control page load error

I have WebBrowser control on my winform. When I try navigate to some web-site I get standard IE error pages ... any way to solve 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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345 views

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c# - Cast ExpandoObject to anonymous type

Can I cast ExpandoObject to anonymous type ? var anoObj = new { name = "testName", email = "testEmail" }; ... type is always an anonymous type.. See Question&Answers more detail:os...

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

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278 views

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c# - Task Parallel Library WaitAny with specified result

I'm trying to write some code that will make a web service call to a number of different servers in parallel, so ... i.e. there was no match. 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# - Generate a unique value for a combination of two numbers

Consider I've two numbers 1023232 & 44. I want to generate a unique number representing this combination of numbers. How can ... (x,y) or (y,x) See Question&Answers more detail:os...

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

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454 views

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c# - Fluent NHibernate Generated AND Assigned ID Columns

I'm using Fluent NHibernate for my data-persistence in a web application. My problem... I have a base ... thereafter can be auto-generated. See Question&Answers more detail:os...

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

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453 views

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c# - DataAdapter.Update() does not Update the Database

I'm sure there is an extremely simple reason that this one line isn't working, but it has evaded for the ... know if you 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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234 views

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c# - Process.Start() under asp.net?

According to msdn : ASP.NET Web page and server control code executes in the context of the ASP.NET ... permissions" is actually regarding ? See Question&Answers more detail:os...

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

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401 views

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c# - Get underlying/derived type of enum?

How can you get the underlying/derived Type(byte, short, int, etc) of an enum? See Question&Answers more detail:os...

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

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504 views

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c# - Binding a Custom View In Xamarin.Forms

I have a problem binding data in a custom view in Xamarin forms to the view model of the containing page. ... (or rather not happening)? See Question&Answers more detail:os...

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

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306 views

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c# - How to analyse WERInternalMetadata.xml file generated by Windows Crash Reporter?

A .Net 4.0 app keeps crashing for a user, but just for him, I could not reproduce the bug. ... some more details than the FileNotFoundException? See Question&Answers more detail:os...

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

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416 views

1 answer

c# - Binding a WPF Button CommandParameter to the Button itself in DataTemplate

I have a DataTemplate that represents AppBar buttons that I declare through a collection of custom AppBarCommand objects ... . 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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438 views

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c# - Is there a resharper comment directive to disable code cleanup for a class?

I have a class where FileHelpers is dependent on the field order in this class file. If the class file ever ... code cleanup for a class? 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

1 answer

c# - Storing and retrieving datatable from session

How to store a datatable in session and to retrieve the values from the session in c#.net? See Question&Answers more detail:os...

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

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540 views

1 answer

c# - Azure WebJob Command Timeout

We are having issue with Azure Web Jobs. We created a C# console application, zipped it, and created the new Web ... Always On" - is turned on. See Question&Answers more detail:os...

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

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347 views

1 answer

c# - Is the garbage collector in .net system-wide or application-wide?

During discussion with my collegue, I got a doubt that the garbage collector in .net works system wide or ... little bit confused about 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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