Recent questions tagged C#

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c# - Focus Lost event for a Winforms TextBox?

Which event should I use for 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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c# - LinqKit PredicateBuilder returns all or non rows

I'm beginning to use LinqKit's PredicateBuilder to create predicate's with OR conditions which is not possible with ... , non of them works! See Question&Answers more detail:os...

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

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552 views

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c# - How to pass credentials in defaultProxy config setting?

A client is unable to use my webpart because he is behind a proxy server and they need to specify a ... password to this proxy setting? See Question&Answers more detail:os...

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

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393 views

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c# - regular expression for strong password

I need a regular expression that Contain at least two of the five following character classes: Lower case characters ... with "OR" condition. 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 do I set the a windows service log on credentials?

How do I programmatically set the "Log On" credentials for an arbitrary Windows service using c# (wmi/interop is fine)? ... { // TODO write 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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c# - Add two expressions to create a predicate in Entity Framework Core 3 does not work

I am trying to build an "And" predicate method using C# with Entity Framework Core 3 in a .NET Core ... appreciate that. Thanks a lot! 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# - "File has a different computed hash than specified in manifest" error when signing the EXE

My ClickOnce installation fails with an error: File, WindowsFormsProject.exe, has a different computed hash than ... d appreciate your 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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c# - Windows Shell Integration using .NET

What's the easiest/best way to register your program in explorers right-click menu using .NET and C#? i.e. I ... . How should this be done now? 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# - Create multiple versions of a project in Visual Studio using Build Configurations

I neeed to create multiple versions of my project using configuration just like we do with #define, #if, #endif ... me towards achieving 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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c# - Service Bus - Singleton Connection Class?

I'm trying to figure out what is the best practice for using Service Bus from a Web-API. I've read that re- ... null) { msgFactory.Close(); } } See Question&Answers more detail:os...

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

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677 views

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c# - Split - Index was outside the bounds of the array

Im using the following code to split up a string and store it: string[] proxyAdrs = linesProxy[i].Split(':'); ... not. How can i solve 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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233 views

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c# - How to get log from Process.Start

I'm going to precompile an asp.net application in my custom c# form. How do i retrieve the process logs ... ; Process.Start(process); 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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401 views

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c# - WebClient.UploadData correct usage for post request

i think i am going a bit crazy, when i test this on my local webserver, it works fine when i go out ... s = Encoding.ASCII.GetString(response); See Question&Answers more detail:os...

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

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436 views

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c# - Is it possible to update the TOC (TableOfContents) of a Word document generated with Syncfusion's DocIO lib?

Our application generates a Word document using Syncfusion's DocIO libs. Basically, we load a template and ... this implementation? 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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379 views

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c# - MRTK (V2) Need to update Hololens?

I'm trying to check out the new MRTK (V2) but I had been having troubles making the build, first on ... from the error of incompatible 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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392 views

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c# - What's the memory overhead for a single windows threads?

Is it 1 Mb of stack per thread? Or is that just CLR threads? I want to know the memory over head of ... threads as view via Task Manager. 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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812 views

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c# - Linq WHERE EF.Functions.Like - Why direct properties work and reflection does not?

I try to perform a simple LIKE action on the database site, while having query building services based on generic ... attempt with .NET Core :) See Question&Answers more detail:os...

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

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270 views

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c# - SQL delete command?

I am having trouble with a simple DELETE statement in SQL with unexpected results , it seems to add the word ... ; ExcludeLstBox.DataBind(); } See Question&Answers more detail:os...

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

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295 views

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c# - How to play a sound file

With C#, How do I play (Pause, Forward...) a sound file (mp3, ogg)? The file could be on the hard disk, ... there that can ease me the 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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444 views

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c# - WCF Service Library with NetTcpBinding

I'm having a tough time with NetTcpBinding. When I run my WCFservice,I get this: System. ... .serviceModel> </configuration> See Question&Answers more detail:os...

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

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748 views

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c# - 401 Unauthorized error web api mvc windows authentication

I am getting 401 unauthorized error . My web service is written in mvc . in IIS configured to use windows ... api from another window service. See Question&Answers more detail:os...

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

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576 views

1 answer

c# - FileHelpers throws OutOfMemoryException when parsing large csv file

I'm trying to parse a very large csv file with FileHelpers (http://www.filehelpers.net/). The file is 1GB ... to parsing files this big? 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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338 views

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c# - Filter items of a ListBox based on the text of a TextBox using only XAML in WPF

I currently have a ListBox binded to a collection of items. As the collection is big we want to filter the ... filter. Hope its clear, 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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344 views

1 answer

c# - Static class to dependency injection

The application I'm trying to get to work uses MVVM. The biggest part of this post is an explanation of ... not implementing DI 100% correctly. See Question&Answers more detail:os...

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

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355 views

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c# - Convert Word doc file to docx on a server without Word

I would like to use c# to convert a doc file to docx file. Can this be done without Word on a 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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483 views

1 answer

c# - No DateTime?.ToString(string) overload?

I am aware of the standard procedure for displaying a DateTime in a custom format, like so: MessageBox.Show(dateSent ... I am trying to achieve? See Question&Answers more detail:os...

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

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397 views

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c# - How to loop through each and every row, column and cells in a GridView and get its value

I have a GridView which is databound, on button_click I want to read the GridView row by row each column and read ... header and store } } } See Question&Answers more detail:os...

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

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235 views

1 answer

c# - How to subtract a rectangle from another?

I'm trying to determine the working area of the desktop even when the taskbar is hidden. I have two ... of the four possible positions. See Question&Answers more detail:os...

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

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