Recent questions tagged C#

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c# - how to use canonical functions in Entity Framework and Mysql

I want to add Timespan to DateTime in EntityFramework with MySql Database. i have tried using DbFunctions. ... and pagination is applied 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# - Are there problems with rendering WPF over Remote Desktop under Windows XP?

I have heard that WPF primitives will not be supported by remote desktop on windows XP. The implication of ... date information on this issue? 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# - Serialize enum as a string in JSON.NET using attributes

I want to serialize enum as string using JSON.NET using attributes similar to [JsonIgnore] Example class: enum ... would prefer {Gender:Male}. 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 propagate database changes to my .edmx file?

I generated an .edmx file from database. I want to know if I make changes to my database schema then ... Entity Data Model Designer diagram? 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# - DllImport and char*

I have a method I want to import from a DLL and it has a signature of: BOOL GetDriveLetter(OUT char* ... anything in the DriveLetter variable. See Question&Answers more detail:os...

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

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350 views

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c# - How do I pass references as method parameters across AppDomains?

I have been trying to get the following code to work(everything is defined in the same assembly) : namespace ... to achieve the same result? 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# - HttpRequestMessage.GetClientCertificate() returns null in Web API

I have a .NET4.5 WebAPI 2 app that uses SSL Client Certificates for some custom security related checks. When ... server side cert is trusted). 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 .DBF file from SQL table records

I want to create a .DBF file from SQL table records. Such as if there is a table named CountryMaster in SQL ... file size must be very compact. 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# - AndAlso between several Expression<Func<T, bool>> : referenced from scope

I have 3 predicates, I'd like make an AndAlso between. I found several sample on the board, but can't solve my ... what's wrong ? 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# - EF Generic Repository get Id from new inserted generic entity

All my entities has property Id. All my tables in database has auto-generated integer identity Id as ... without implementing this inheritance? See Question&Answers more detail:os...

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

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389 views

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c# - Why is my .NET framework app looking for the wrong version of the .NET core/standard platform extension assembly, and how do I fix it?

From the .NET APIs catalog, I understand that the Microsoft.Win32.Registry class is declared in the .NET Standard ... case on a Windows machine? 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 is WinDbg <unknown> Memory?

I'm debugging a Winforms application for a memory leak. In the dump file provided by the customer there is ... output !address -summary output 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

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c# - Visual Studio Add-In - adding a context menu item to solution-explorer

I'm developing my first add-in for Visual studio and we need to add a context menu item to the solution explorer, ... the VS "tools" menu etc. 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# - Translating query with GROUP BY and COUNT to Linq

I have a query to see how many entities Users have inserted (Version = 1) and entities they've updated ( ... the SQL Query I posted before? See Question&Answers more detail:os...

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

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969 views

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c# - How to override onclose event on WPF?

I'm trying to override the onclose event on WPF, this is my code so far: protected override void OnClosing(System ... Any ideas how to fix 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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574 views

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c# - Map entity to JSON using JavaScriptSerializer

My entities are like this: class Address { public string Number { get; set; } public string Street { get; set; ... key-value pairs in JSON obj.? 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# - ITextSharp PdfCopy use examples

I am trying to use PdfSmartCopy from ItextSharp but I cannot find any relevant examples in c#. The ideea is that ... (acroFields); pst.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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c# - sorting elements in a stackpanel WPF

I have a stackpanel with some usercontrols that are added or removed during runtime. These elements have an ... something im missing somewhere? See Question&Answers more detail:os...

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

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538 views

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c# - Why do you need to put break after the last label of a switch statement?

Surely the compiler knows that it's the last label of the switch 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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c# - How to change all keys to lowercase when parsing JSON to a JToken

I have a string of JSON and the keys have uppercase and lowercase characters: {"employees":[ {"FIrstName ... will be case insensitive. 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# - Add property to POCO class at runtime

I selected ServiceStack OrmLite for my project which is a pure Data-Oriented application. I am willing to allow the ... mimic the need I have. See Question&Answers more detail:os...

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

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1.1k views

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c# - How to resize view when touchscreen keyboard is visible on Android with Unity?

In Unity I can't control the touchscreen keyboard. TouchScreenKeyboard class has only one parameters for Android. if ... keyboard on Android ? See Question&Answers more detail:os...

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

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374 views

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c# - TextBoxFor - Showing Wrong Value

Ok, I've got a weird one here. I know the value is being passed to the property correctly as this works fine ... s the only one this happens 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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513 views

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c# - WPF Save WebBrowser HTML

Does anyone (please) know how to do this? I thought that there would be an easy way to achieve this ... saving the contents of WebBrowser HTML. See Question&Answers more detail:os...

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

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319 views

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c# - Executing stored proc from DotNet takes very long but in SSMS it is immediate

I have a stored proc on SQL Server 2000 that takes 3 parameters. When I call the stored proc from DotNet using ... readable at all on the forum. See Question&Answers more detail:os...

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

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388 views

1 answer

c# - How to Split an XML file into multiple XML Files

I am trying to split a XML file to multiple small xml files in C#.net and am trying to get the best possible ... </TEXT> </DOC> </DATABASE> See Question&Answers more detail:os...

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

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439 views

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c# - Dynamic LINQ DateTime Comparison String Building - Linq To Entities

I'm using the dynamic LINQ library by Scott Guthrie together with Entity Framework and C#. I have to build my ... 't work? 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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c# - How to add reference to assembly in visual studio mac?

I am sorry. I am newbie in C#. I use Visual Studio Mac. I want to try to connect mysql database. I ... .0.0.0, Culture=neutral, PublicKeyToken See Question&Answers more detail:os...

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

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