Recent questions tagged C#

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c# - How can I use ConvertTo-SecureString

Let's say I need to do this in Powershell: $SecurePass = Get-Content $CredPath | ConvertTo-SecureString -Key (1.. ... , but I will keep trying. 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# - What type of collection should I use?

I have approximately 10,000 records. Each records has 2 fields: one field is a string up to 300 characters ... . Thanks for your 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# - Is it important to override Equals if I'm implementing IEquatable<T>?

I know the importance of overriding GetHashCode when implementing custom equality checks - for which I have implemented IEquality ... as T); } 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# - Why string is sealed

I am curious why System.String is sealed? I know, I can do whatever I need to do not inheriting it, but still ... , more or less doing the same. 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# - Creating winforms controls dynamically

I am learning c#. I want to create some controls dynamically. Here is the code that I am trying to create new elements on ... label[i]); } } } } See Question&Answers more detail:os...

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

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317 views

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c# - Loading a file to a Bitmap but leaving the original file intact

How to do this in C#? If I use Bitmap.FromFile(), the original file is locked. If I use Bitmap. ... between the file and the Image object 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 implement LessThan, etc., when building expressions on strings

I have a package in which I'm building expression trees, to use with EntityFramework, via PredicateBuilder: public ... member.Type)); } } 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# - Divide a large IEnumerable into smaller IEnumerable of a fix amount of item

In order to support an API that only accepts a specific amount of items (5 items), I want to transform a ... trouble figuring how to write that. 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# - Recursively Mapping ExpandoObject

In my application i have to use ExpandoObject in order to create/delete properties during the runtime; However, i have to ... { 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# - Passing array of ints to T-SQL stored proc via entity framework

I've read many posts and think I understand the concepts, but my small array of ints fails to pass from a C#/ ... . What am I missing, 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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340 views

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c# - Error in XML document (2,2)

I have some xml files and I am trying to deserialize as below in the given code. using ( ... at CCR2BB.frmMain.BWConvertProcess_DoWork() 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# - Downloading large files(~150MB) from FTP server hangs

I am trying to download files from ftp server with this code: using (System.IO.FileStream fileStream = System ... external libraries. Thank you See Question&Answers more detail:os...

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

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353 views

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c# - IndexOutOfRangeException on Queryable.Single

I have an ASP.NET site that has been running perfectly for a long time, nothing's changed recently. From one ... the capacity as needed Anyone? See Question&Answers more detail:os...

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

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335 views

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c# - How to add controls dynamically when click button in asp.net?

I'm trying to add controls dynamically Code: AddVisaControl.ascx <%@ Control Language="C#" AutoEventWireup="true" ... ideas? Thanks in advance See Question&Answers more detail:os...

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

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332 views

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c# - How to cast System.Object[*] to System.Object[]

When I Tried to return an Array in VFP9 language COM/DLL to my .NET C# project I receive a System.Object ... System.Object[] (Without asterisk). See Question&Answers more detail:os...

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

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215 views

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c# - How to get defined operators for a type in .net

I'm trying to get the list of defined operators for a specific type in order to see what kind of operations ... . Any help will be 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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321 views

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c# - Aren't destructors guaranteed to finish running?

Destructors are weird. I was attempting to eliminate the need of using the disposable pattern by using 'smart ... guaranteed to finish running? See Question&Answers more detail:os...

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

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278 views

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c# - Determine if file copied into clipboard is an image

The user right clicks on a file(say on the desktop) and clicks 'copy' . Now how do I determine in ... . Edit2: Clipboard.GetFileDropList() 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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416 views

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c# - Encoding used in cast from char to byte

Take a look at the following C# code (function extracted from the BuildProtectedURLWithValidity function in http:// ... What do you think? See Question&Answers more detail:os...

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

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278 views

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c# - Linq Contains method for a object

I have a object User and it is the following class: public class User { public int ID { get; set; } ... retrieve this boolean, is it Contains? See Question&Answers more detail:os...

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

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225 views

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c# - web.config transform from web.template.xml not working

I'm trying to get web.config transformations working as described here. We've used this method on other projects ... .csproj".: (TargetId:143) See Question&Answers more detail:os...

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

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279 views

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c# - SafeHandle and HandleRef

After reading about both, including a high voted answer on this site, I still find this a bit unclear. Since ... of scope (as mentioned here)? See Question&Answers more detail:os...

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

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400 views

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c# - Use SqlDataReader in F#

In C# I use sql scripts to add data into a List where T would be a class with fields/properties mapped to the ... my raw data from SQL 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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246 views

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c# - Console messages appearing in incorrect order when reporting progress with IProgress.Report()

I have noticed a following behaviour. Console output messages appear in an incorrect folder when they are populated ... it be controlled? 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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296 views

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c# - .NET 4: How to configure EDMX file in other assembly in Web.Config

I have a problem with configuring an EDMX file that lives in an other assembly than by web project. My ... config to configure Project 1?) See Question&Answers more detail:os...

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

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602 views

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c# - TextRenderer.DrawText in Bitmap vs OnPaintBackground

If I use TextRenderer.DrawText() using the Graphics object provided in the OnPaintBackground my text looks perfect. ... What is the difference? See Question&Answers more detail:os...

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

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701 views

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c# - Why does Response.Redirect not redirect external URL?

Context: User is currently in the following page: http://myinternaldomain.com/page/ Issue: When user clicks on a ... What am I missing here? See Question&Answers more detail:os...

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

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243 views

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c# - struct - what is it for?

I know something about struct type. But I can't understand: what is it for? when have I use it? Classes, simple ... this :). What struct is for? See Question&Answers more detail:os...

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

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