Recent questions tagged C#

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c# - What is the difference between Property and Dependency Property

Dependency properties are created the same way as properties. Is a dependency property used only while creating a custom control? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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599 views

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c# - Wait for file to be freed by process

How do I wait for the file to be free so that ss.Save() can overwrite it with a new one? If I run ... , ImageFormat.Jpeg); } return fileName; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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496 views

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c# - Determine Client's Computer Name

I am building an intranet site that will display different lists based on the computer name because different computers ... , any other ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How performant is StackFrame?

I am considering using something like StackFrame stackFrame = new StackFrame(1) to log the executing method, but I ... it for the release? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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586 views

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c# - Setting Culture for ASP.NET MVC application on VS dev server and IIS

This is more specific and cleaner version of this question - Different DateTimeFormat for dev and test environment In ... can I override it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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544 views

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c# - Intersect LINQ query

If I have an IEnumerable where ClassA exposes an ID property of type long. Is it possible to use a Linq ... and idsToFind is IEnumerable<long>. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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497 views

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c# - Browser detection

I need to separate IE and FF browsers from others it's a pseudo-code : If (CurrentBrowser == IE(6+) or FF(2+) ... :-/ what is IE and FF types? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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738 views

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c# - Is there a way to convert a System.IO.Stream to a Windows.Storage.Streams.IRandomAccessStream?

In Windows 8; I would like to pass the contents of a MemoryStream to a class that accepts a ... this MemoryStream to an IRandomAccessStream? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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742 views

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c# - Split a string that has white spaces, unless they are enclosed within "quotes"?

To make things simple: string streamR = sr.ReadLine(); // sr.Readline results in: // one "two two ... I am using System.Text.RegularExpressions) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Reference a .NET Core Library in a .NET 4.6 project

Maybe I have a miss understanding of what ".NET Core Library" means, but when I try to add a .NET Core Library in a ... "4.0.11-beta-23516" } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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544 views

1 answer

c# - How to make BackgroundWorker return an object

I need to make RunWorkerAsync() return a List<FileInfo>. What is the process to be able to return an object from a background worker? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to change the button text for 'Yes' and 'No' buttons in the MessageBox.Show dialog?

I need to change the message box control buttons Yes to Continue and No to Close. How do I ... .YesNo, MessageBoxIcon.Information); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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763 views

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c# - Error: "The node to be inserted is from a different document context"

When I am calling XmlNode.AppendChild(), I get this error: The node to be inserted is from a different document ... I need to be aware of? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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661 views

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c# - The source was not found, but some or all event logs could not be searched

I am getting the following exception. I have given full control to Asp.net account on Eventlogs in Registry ... configuration issue on server? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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355 views

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c# - Why does the is operator return false when given null?

It seems to me that the is operator is a bit inconsistent. bool Test() { // Returns false, but should ... ? To me it seems counterintuitive. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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675 views

1 answer

c# - Trim last character from a string

I have a string say "Hello! world!" I want to do a trim or a remove to take out the ! off world but not off Hello. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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c# - nullable object must have a value

There is paradox in the exception description: Nullable object must have a value (?!) This is the problem: I ... due to a generated setter. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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385 views

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c# - Efficient graph traversal with LINQ - eliminating recursion

Today I was going to implement a method to traverse an arbitrarily deep graph and flatten it into a single ... something else going on here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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439 views

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c# - Embedding a File Explorer instance in a Windows Forms application form

My (C#, .NET 3.5) application generates files and, in addition to raising events that can be caught and reacted ... etc.) then all the better! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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487 views

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c# - Is there a port of memcache to .Net?

I am interested if there is a port for the server implementation. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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583 views

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c# - Should the repository layer return data-transfer-objects (DTO)?

I have a repository layer that is responsible for my data-access, which is called by a service layer. The service ... to be sent over the wire. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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425 views

1 answer

c# - How can you loop over the properties of a class?

Is there a way in c# to loop over the properties of a class? Basically I have a class that contains a ... value for each property in turn? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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648 views

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c# 4.0 - ASP.Net MVC - Read File from HttpPostedFileBase without save

I am uploading the file by using file upload option. And i am directly send this file from View ... file from HttpPostedFileBase without save? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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728 views

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c# - An error occurred attempting to determine the process id of dotnet.exe which is hosting your application. One or more error occured

I have clone the project from source url. My friend has developed the asp.net core web application using .NetCore 1. ... me know about this. [ [ See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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424 views

1 answer

c# - How can I pass a parameter in Action?

private void Include(IList<string> includes, Action action) { if (includes != null) { foreach (var include in ... each include to the method. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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559 views

1 answer

c# - Get current System.Web.UI.Page from HttpContext?

This is actually a two part question. First,does the HttpContext.Current correspond to the current System.UI.Page ... or null type conversion. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.2k views

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c# - Invalid cast from 'System.Int32' to 'System.Nullable`1[[System.Int32, mscorlib]]

Type t = typeof(int?); //will get this dynamically object val = 5; //will get this dynamically object nVal = ... int, what is the issue here ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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545 views

1 answer

c# - How should you diagnose the error SEHException - External component has thrown an exception

Whenever a user reports an error such as System.Runtime.InteropServices.SEHException - External component has thrown an ... more I can do? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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