Recent questions tagged C#

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c# - Newline character in StringBuilder

How do you append a new line( ) character in StringBuilder? 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# datatable insert column at position 0

does anyone know the best way to insert a column in a datatable at position 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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c# - Find all subsets of a list

I have a list and I need to output each subset of the list for example a b c d e would output to a ... even sure wehre to start any suggestions? 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# - Providing Asynchronous Serial Port Communication

Currently our application connects to an Arduino over a serial port. We send some ASCII-formatted commands, and get the ... to let us .Set 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# - Flickering in listview with ownerdraw and virtualmode

I'm using listview control with the following parameters set: this.listView1.BackColor = System.Drawing.Color. ... to avoid this behavour? 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# - Download, save( locally ) and display PDF from a link

I am developing Windows phone 8 application. In my application, i have to display PDF file in offline( ... ideas will be greatly appreciated. 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# - Desktop screenshot in WPF

How can I take a screenshot of the desktop in WPF? Preferably with the mouse cursor showing. 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# - Uploading a Azure blob directly to SFTP server without an intermediate file

I'm attempting to upload am Azure blob directly to an SFTP server. It's simple to upload a file from a ... storage directly to an SFTP server? 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 find a black square with any angle of rotation in the image using emgu cv

I need to find the coordinates of three black squares in the test form. I took the example code from the site ... .jpg"); } Input image: 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# - Querying Entity with LINQ using Dyanmic Field Name

I have created a dynamic search screen in ASP.NET MVC. I retrieved the field names from the entity through ... Expression.Lambda(body, cParam); 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 wide Windows CBT hook not working properly

I'm trying to hook a CBT hook on Windows OSes. I'm currently using Windows 7 x64. I've read many threads ... a local user (something like VNC). 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# - Calling an ASP.NET EventHandler from JavaScript

I have a traditional ASP.NET Web Form. We used to have a button defined as follows: <asp:Button ID="myButton" ... do this? Thank you so much! 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# - Export ListView to CSV

Is anyone aware of a decent CSV export tool for exporting from a ListView? I need to get a project ... this final feature implemented myself. See Question&Answers more detail:os...

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

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281 views

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c# - Strange behaviour in ASP.NET MVC: removing item from a list in a nested structure always removes the last item

Scenario I have a parent/child model (to be exact a small questionnaire form and a one or more number of contacts). ... Sings { get; set; } } 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# - Firebase authentication asp.net core

After a successful sign-in to Firebase we received a JWT token. In order to add authorization to my asp.net ... wich Auhtority url is correct? See Question&Answers more detail:os...

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

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308 views

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c# - Finding clients location in an ASP.NET page

How to find clients location in my ASP.NET page? In fact I used System.Globalization.RegionInfo.CurrentRegion, ... location using any method? See Question&Answers more detail:os...

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

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206 views

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c# - Encrypt connection string in NON ASP.Net applications

I am working with C# & WPF and, of course, an app.config file. I have not been able to find an example of ... (or other data) in an app.config? See Question&Answers more detail:os...

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

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257 views

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c# - Is there a custom language add-in for Visual Studio 2012 / VS11?

Well I want to add support for the PAWN language to Visual Studio 2012. But because of the lack of experience ... window / unusable VS2012 IDE. See Question&Answers more detail:os...

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

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273 views

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c# - How do I create a TabControl with no tab headers?

How do I make a tab manager that doesn't show the tab headers? This is a winforms application, and the ... options change the screen contents. 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 replace the pointer to the overridden (virtual) method in the pointer of my method? (Release x64 and x86)

In question Dynamically replace the contents of a C# method? I found a good response from @ Logman. I ... the replacement of overridden 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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329 views

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c# - Problem with Eager Loading Nested Navigation Based on Abstract Entity (EF CTP5)

I a portion of my EF model that looks like this: Summary: Location has many Posts Post is an ... attempting the anonymous type projection. See Question&Answers more detail:os...

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

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288 views

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c# - How does one create a project to create a Nuget package for Xamarin Forms supporting iOS, Android, and UWP?

It feels like no one in the world has done this. I can't find any tutorials or help on how to create ... project doesn't have any folders. See Question&Answers more detail:os...

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

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193 views

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c# - Return value of a select statement

I want to retrieve the resulting value of a select statement into a string variable. Like this: OleDbCommand cmd1 = new ... . How can I do 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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262 views

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c# - File permissions do not inherit directory permissions

I have a program that's creating a secure directory for user output. This is working correctly, but the ... aren't the permissions cascading? 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# - ASP.NET Core 2.0 custom middleware using cookie authentication

I need to implement custom "authentication" for my company. I say that in quotes because the user technically gets ... <MyUserMiddleware>(); } } 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# - Encrypting a BouncyCastle RSA Key Pair and storing in a SQL2008 database

I have a function that generates a BouncyCastle RSA key pair. I need to encrypt the private key and then ... help would be greatly appreciated. See Question&Answers more detail:os...

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

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502 views

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c# - Microsoft Bot Framework messages with buttons in Facebook Messenger

I'm working on a bot using the C# Microsoft Bot Framework and I'd like to send messages with action buttons ... buttons from the Bot Framework? See Question&Answers more detail:os...

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

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175 views

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c# - ASP.NET MVC inject per request

I need to inject EF context per request. Is there any way to implement 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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