Recent questions tagged .NET

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.net - Getting List Of Installed Products c#

To Install/Uninstall/Update our software, our custom installer uses WindowsInstaller.Installer.Products to get the list ... that seems to 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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.net - Using boost threads when compiling with /clr

I have gave up on creating a GUI directly from the windows API so I'm going to use forms. I would like to ... I find is in C#). 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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.net - SqlDataReader hangs on GetValue() method and SNIReadSyncOverAsync

We have an extremely weird problem at hand. The .Net SqlDataReader object gets stuck while reading a value on ... Why does it not timeout? See Question&Answers more detail:os...

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

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.net - How to draw a transparent shape over an Image

How do I draw a shape over an image to overwrite what's there and make it transparent? Like the transparent hole ... in the middle of an 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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.net - why getting null value from console in c# for readLine() after using read()

I have the following code char c1 = (char)Console.Read(); Console.WriteLine("Enter a string."); string instr ... works correctly. Why is 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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.net - Why can one aliased C# Type not be accessed by another?

good stuff // ok to alias a List Type using AliasStringList = System.Collections.Generic.List<string>; // ... directive not the using statement. See Question&Answers more detail:os...

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

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.net - Clicking button automatically using HtmlAgilityPack

I want to click a button on a web page automatically. I am using HtmlAgilityPack. I can take the button's Xpath. ... can I do this? Please 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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.net - how to do location based search

I need to develop a solution that will provide the ability for a user to search based on a city and state. The ... open API's for 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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.net - Trying to understand exceptions in C#

I do not really use any try/catches in my code ever but I'm trying to break that habit and now get in ... class in case anything goes 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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.net - Generic Repository in C# Using Entity Framework

I want to retrieve multiple records by giving array of primary key and I have to make generic method of ... structure to find multiple records? See Question&Answers more detail:os...

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

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378 views

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.net - What happens to work scheduled by Task.Run() after the program terminates?

I was doing some tests with the TPL and async/await and noticed something that I find unexpected: I was ... for fire-and-forget scenarios. See Question&Answers more detail:os...

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

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.net - Populating ANY elements on a web service in C#

Can someone point me to a C# example where they populate a request and receive the response for a web service ... Any[0].AppendChild(inqNode);` See Question&Answers more detail:os...

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

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.net - Trouble with building a C# EntityFramework IQueryable Expression

So I'm attempting to build a semi complication Search expression, but I'm stuck trying to create a ... ().Method, parameterValueExpression); See Question&Answers more detail:os...

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

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340 views

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.net - Unusual Integer encoding to bytes - what scheme is this?

What Integer encoding scheme is used to achieve the following, and how can we do this in .Net: 127 = 7F 128 = ... = FF01 256 = 8002 500 = F403 See Question&Answers more detail:os...

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

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.net - List of classes in an assembly

I've a DLL assembly, in which there are various classes. Each class has around 50-100 members and 4-5 ... an operation using a particular 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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379 views

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.net - c# Thread issue using Invoke from a background thread

I've got thread, which processes some analytic work. private static void ThreadProc(object obj) { var grid = (DataGridView ... ("Done", "Info"); See Question&Answers more detail:os...

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

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.net - 2 in a row c# program game

here is the game board just to give you an idea of how it looks like (this board will be expanded to a 7x6) what i ... ; } return; } } } } } See Question&Answers more detail:os...

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

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376 views

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.net - LINQ to DataTable

I have big DataTable I want to get subset of this DataTable represented as DataTable either. Briefly saying how ... without looping thought 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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369 views

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.net - System.IO.File.Exists(@"C:WindowsSystem32SnippingTool.exe") returns false

So I am working on a simple .NET program for work and hit a bit of a weird roadblock I can't figure out. ... , but I am not sure why. See Question&Answers more detail:os...

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

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366 views

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.net - C# List<double> size vs double[] size

So I just was testing the CLR Profiler from microsoft, and I did a little program that created a List with ... I created the 1 million doubles. See Question&Answers more detail:os...

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

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462 views

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.net - System.Net.WebClient request gets 403 Forbidden but browsers do not with Apache servers

An odd one, I'm trying to read the <Head> section of a lot of different websites out there, and ... as possible to minimize bandwidth. 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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404 views

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.net - Issue with Code Coverage in VS 2012

I have a simple ASP.Net MVC 4 application with 3 simple tests. Each of these tests run successfully to ... error message I am expecting. See Question&Answers more detail:os...

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

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341 views

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.net - What is the "< >" syntax within C#

I have been learning about the basics of C# but haven't come across a good explanation of what this is: var ... to me with examples, please? See Question&Answers more detail:os...

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

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408 views

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.net - Wait for process to finish and then display message (C#)

I would like to be able to watch a process until it is terminated, and once non existent display a message, how could this be achieved? See Question&Answers more detail:os...

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

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592 views

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.net - Do I need to call Graphics.Dispose()?

In a VB.NET program I'm creating a new bitmap image, I then call Graphics.FromImage to get a Graphics ... be cleared by the garbage collector? 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

1 answer

.net - How to obtain task bar Notification Area width in a C# program?

I am developing a feature within a C# Winforms application which has a requirement for determining the width of ... not an absolute requirement. See Question&Answers more detail:os...

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

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557 views

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.net - Event handler and memory leaks

I analyze a VB.NET project and there are some objects (child MDI form) that are disposed, but not removed ... memory allocation point of view? See Question&Answers more detail:os...

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

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434 views

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.net - Open an image with the Windows default editor in C#

In my C# application, I would like to launch the default image editor to edit an image. When I'm using System. ... way to do this? Thanks Frank See Question&Answers more detail:os...

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

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