Recent questions tagged c#

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c# - How to intercept 404 using Owin middleware

Background First let me explain the background. I am working on a project that attempts to marry a backend ... .html using OWIN middleware? 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# - Compare old and new value in DataGridView cell

How to change DataGridView cell ForeColor based on whether new cell value is > or < than current/old cell ... may be bound by BindingSource. 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# - After SQLite update: Unable to find an entry point named 'sqlite3_changes_interop' in DLL 'SQLite.Interop.dll'

My C#/SQLite was working fine until I decided to update the SQLite DLLs (from 1.0.82.0 to 1.0.84. ... cache somewhere that does not get cleaned. See Question&Answers more detail:os...

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

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469 views

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c# - Using System.Uri to remove redundant slash

I have a condition in my program where I have to combine a server (e.g. http://server1.my.corp/) that may ... slash. Am I not using Uri right? See Question&Answers more detail:os...

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

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727 views

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c# - Set HTTP protocol version in HttpClient

I need to make a request to a webservice that uses HTTP version 1.0. Im using HttpClient , But I cant see ... can i set the request version? 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 dispose objects having asynchronous methods called?

I have this object PreloadClient which implements IDisposable, I want to dispose it, but after the asynchronous methods ... or work arounds ?? 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 use extern alias with nuget

I use extern alias in my project so I need to change the reference alias from global to something else. The ... to stop this from 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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c# - Cast to a type from the type name as a string

I have an existing base type and I would like to cast it to a derived type base upon the name of the type ... this for a SpecFlow BDD Feature. 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 solve DbUpdateConcurrencyException when updating a row?

I'm using the entity framework code first approach for an ASP.NET MVC application. After editing a row when ... ("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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762 views

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c# - 'ManagementClass' does not exist in the namespace 'System.Management'

Hi i'm using this method for get the mac address public string GetMACAddress() { System.Management.ManagementClass mc ... do for fix it? 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# - System.Net.ProtocolViolationException: You must write ContentLength bytes to the request stream before calling [Begin]GetResponse

I am getting the "System.Net.ProtocolViolationException: You must write ContentLength bytes to the request stream before ... be causing 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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361 views

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c# - Update RowKey or PartitionKey in Azure Table Storage

Can i update RowKey or PartitionKey properties of entity in Azure Table Storage? I thought yes or maybe ... ; _table.Execute(updateOperation); See Question&Answers more detail:os...

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

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370 views

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c# - Does using the braced initializer on collection types set the initial capacity?

Does using the braced initializer on a collection type set it's capacity or do you still need to specify it? That is, ... ){ "One", "Two" }; See Question&Answers more detail:os...

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

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236 views

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c# - LINQ to SQL ForeignKeyReferenceAlreadyHasValueException error

This error is being generated when I try to change a foreign key. I know this is a very common error I've ... key or is there a better way? See Question&Answers more detail:os...

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

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312 views

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c# - Getting a Stream from a resource file / content

Is this the correct/only way of getting a Stream from a resource file? Uri uri = new Uri(fullPath); ... /en-us/library/hh137813.aspx 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# - Lambda Expression: == vs. .Equals()

This is a purely academic question, but what's the difference between using == and .Equals within a lambda ... o.CategoryId.Equals(categoryId)); See Question&Answers more detail:os...

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

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580 views

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c# - How do you format a DateTime that's displayed by TextBoxFor() in MVC3?

I have ASP.NET MVC3 installed. I need datepicker with formatted date. I tried this, but it's not working (when ... on MVC3. Can you 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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271 views

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c# - Passing an array as `params` argument

I have the following method: void MyMethod(params object[] args) { } which I am trying to call with a ... array, sorry for stupid question. See Question&Answers more detail:os...

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

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673 views

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c# - WPF Datagrid Column Format Number to include commas

I thought this would be rather simple and probably is but I cannot find anything on google. I have a WPF ... would be great, Thanks, M See Question&Answers more detail:os...

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

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479 views

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c# - Time complexity of Math.Sqrt()?

How can I find the complexity of this function? private double EuclideanDistance(MFCC.MFCCFrame vec1, MFCC.MFCCFrame vec2) ... Math.Sqrt() 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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1.4k views

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c# - Json: how to properly strip the escape characters with json.net

I have json response in the below format. "[{"JobID":"1","BillGenerationDate":"4/29/2013 2:53:34 ... by manipulating the json response 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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346 views

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c# - Entity Framework 6: Code First Cascade delete

So there are several similar questions on here to this, but I'm still having issues determing what exactly ... rows before deleting the parent? 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# - How do you transpose dimensions in a 2D collection using LINQ?

Consider the following structure: IEnumerable<IEnumerable<int>> collection = new[] { new [] {1, 2, 3} ... <int> functionality. 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# - How to avoid color changes when button is disabled?

We have a Windows Forms project with quite a few FlatStyle buttons. When we disable the buttons, the colors ... control the colors ourselves? See Question&Answers more detail:os...

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

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481 views

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c# - Timeout.InfiniteTimespan in .Net 4.0?

I actually do know that Timeout.InfiniteTimespan does not exist in .NET 4.0. Noticed, there's also Timeout.Infinite ... from .NET 4.5 ? See Question&Answers more detail:os...

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

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539 views

1 answer

c# - Filtering out auto-generated methods (getter/setter/add/remove/.etc) returned by Type.GetMethods()

I use Type.GetMethods(BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic) to ... user defined methods? 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# - How to decide a Type is a custom struct?

For a Type, there is a property IsClass in C#, but how to decide a Type is a struct? Although ... predefined types, such as DateTime. 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

1 answer

c# - How to limit the time DownloadString(url) allowed by 500 milliseconds?

I'm writing a program that when textBox1 change: URL = "http://example.com/something/"; URL += System.Web. ... . If more than, cancel 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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