Recent questions tagged C#

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c# - Return multiple datasets from sql server stored procedure

I need to return through Web Api a Base64 XML output based upon calling a stored procedures which runs 5 ... (1) order by DisplayOrder See Question&Answers more detail:os...

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

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456 views

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c# - Buffering log messages in NLog and manually flushes them to target

I am trying to log via the NLog MailTarget. It works just fine, but i wanted to wrap the mailtarget with the ... (to send it by mail)? 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# - Animating WPF element in XAML using attached property?

I got my animation to work triggered by a property in my ViewModel. If I set my TargetProperty to Width, ... of finding the Attached Property? See Question&Answers more detail:os...

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

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303 views

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c# - Property Grid Number formatting

Is it possible to format numerical properties displayed in PropertyGrid of winforms? class MyData { public int ... some attributes 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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274 views

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c# - ICommand binding causing UI memory leak in WPF application

I'm building a WPF app that connects to a SQL Server database using LINQ to SQL. The main window of the app contains a ... ="5"> <Grid> . . . See Question&Answers more detail:os...

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

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265 views

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c# - Authorization for JWT bearer in Swashbuckle .NET Core 2

I use tokens generated by an authentication service for my app. No problems there. Now I have introduced ... for every subsequent request? See Question&Answers more detail:os...

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

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203 views

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c# - How can I manually add data to a dataGridView?

I'm trying to run this code, and I get an exception: Index was out of range. Must be non-negative and ... the fields using this small 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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c# - Suppress xsi:nil but still show Empty Element when Serializing in .Net

I have a c# class that has 20+ string properties. I set about a fourth of those to an actual value. I would like ... to get rid of the xsi:nil. 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# - Pass object instance to Roslyn ScriptEngine

I'm looking for a C# scripting engine, that can interpret blocks of C# code, while maintaing a context. For ... s no such function in roslyn. 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# - Keep an Application Running even if an unhandled Exception occurs

What ? I am developing a Console Application that needs to keep running 24/7 No Matter What Is there any way to ... more as an "Open 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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238 views

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c# - String.comparison performance (with trim)

I need to do alot of high-performance case-insensitive string comparisons and realized that my way of doing it .ToLower(). ... ) == 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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429 views

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c# - Retrieve serial ID with Npgsql when inserting with ExecuteScalar

I'm trying to insert a row into a PostgreSQL table with a serial primary key and I need to retrieve ... missing something? 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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176 views

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c# - How to convert a SQL date to a DateTime?

I have a column with the date type in my SQL database. How can I convert it to C# DateTime and then back again to a SQL date? See Question&Answers more detail:os...

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

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568 views

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c# - Mono HttpListener client certificate

I have created a server using HttpListener. It works perfect without SSL, but with SSL something strange ... certificate negotiation? 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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281 views

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c# - SerialData.Eof circumstances

In my SerialPort.DataReceived event handler, I am checking for SerialData.Eof: void DataReceived(object sender, ... testing for it altogether? 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

1 answer

c# - Use OR Clause in queryover in NHibernate

I am using Nhibernate. I am writing query through queryover method. I am able to write and clause as in code ... can I implement this. 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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189 views

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c# - DateTime string parsing

I have made a generic parser for parsing ascii files. When I want to parse dates, I use ParseExact function in ... Thanks in advance.. S?ren See Question&Answers more detail:os...

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

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151 views

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c# - Compare 2 unordered recordset in memory

Below is my application database table which contains SQL queries stored in a table: QueryStorage Id Query ... use LinkedServer and SSIS. See Question&Answers more detail:os...

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

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442 views

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c# - Automapper null properties

I map my objects to dtos with Automapper. public class OrderItem : BaseDomain { public virtual Version ... or unsupported mapping. See Question&Answers more detail:os...

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

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204 views

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c# - add data to existing xml file using linq

I am a .net beginner. I need to add some data to xml file the xml file is: <stock> --- 1st level ... my project. Please Help 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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679 views

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c# - How to check if a file exists on an webserver by its URL?

in our application we have some kind of online help. It works really simple: If the user clicks on the help ... cannot send the HTTP request ;) 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

1 answer

c# - DbSet doesn't contain definition for FirstOrDefault?

I recently migrated an existing project to .net 4.5 and changed out what this project was using for data access (switching to ... ; } ........ } See Question&Answers more detail:os...

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

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359 views

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c# - What is the shortest way in .NET to sort strings starting with 1, 10 and 2 and respect the number ordering?

I need to sort file names as follows: 1.log, 2.log, 10.log But when I use OrderBy(fn => fn) it ... "order by name" in Windows Explorer. See Question&Answers more detail:os...

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

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484 views

1 answer

c# - CultureInfo & DateTimeInfo: How to check if is 24 hour time?

I'm modifying a globalized web application which uses stored CultureInfo for each logged in user. The client ... existing methods or properties. See Question&Answers more detail:os...

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

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465 views

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c# - How can I capture mouse events that occur outside of a (WPF) window?

I have a Window element that has WindowStyle="None" and AllowsTransparency="True", therefore it has no title bar ... { MouseIsDown = false; } 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

1 answer

c# - Generating PDF in .NET using XSL-FO

I need to generate a pdf in .NET using XSL-FO. There are no shortage of libraries to do this. What library would you suggest that I use and 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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606 views

1 answer

c# - How to read FormData into WebAPI

I have an ASP.NET MVC WebApplication where I am using the ASP.NET Web API framework. Javascript code: var data = ... How can I get this value? See Question&Answers more detail:os...

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

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320 views

1 answer

c# - Combining these two Regular Expressions into one

I have the following in C#: public static bool IsAlphaAndNumeric(string s) { return Regex.IsMatch(s, @"[a-zA-Z]+") && ... " and "d+") into one ? See Question&Answers more detail:os...

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

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