Recent questions tagged C#

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I am attempting to pull some information from my tnsnames file using regex. I started with the following pattern: ... SERVICE_NAME = LOCAL) ) ) 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# - Draw a line on PictureBox from parent

I have a PictureBox as UserControl. I added this User Control on the main form. Now I have to press a button ... (graphPen, pt1D, pt2D); } 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# - ASP.NET MVC controller actions with custom parameter conversion?

I want to set up a ASP.NET MVC route that looks like: routes.MapRoute( "Default", // Route name "{ ... in control of. Is this possible? See Question&Answers more detail:os...

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

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422 views

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c# - How to know if OrderBy was applied to query?

I need to know if an OrderBy was applied to a Linq query before applying an .Skip or .Take. I have no ... an OrderBy was applied to the query? See Question&Answers more detail:os...

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

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468 views

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c# - Splitting a CSV and excluding commas within elements

I've got a CSV string an I want to separate it into an array. However the CSV is a mix of strings ... parse the string character by character? See Question&Answers more detail:os...

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

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418 views

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c# - Query string param is missed when form validation fail

I have an form with following url: CreateEntity?officeCodeId=5 When I send form to validate and if validation is ... form-data" method="post"> 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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c# - TextBox.Text Leaking Memory in WPF Application

I have an application that does a large amount of number crunching on an array of numbers. I have it set to ... arraystatus = null; s = null; See Question&Answers more detail:os...

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

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551 views

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c# - How to disable MARS and circumvent "MARS is not yet implemented"-exception"?

While using a PostgreSQL database with Entity Framework on Mono using the packages Npsql and Npsql. ... specified connection string. See Question&Answers more detail:os...

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

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451 views

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c# - Why is a property hiding Inherited function with same name?

I have a class Foo with a function myName in it. Class bar Inherits from Foo and have a Property that is ... myName in addition to get_myName()? See Question&Answers more detail:os...

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

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716 views

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c# - Playing HLS (m3u8 playlist) on Windows Phone 8.1

A friend and I have tried to get the video player on Windows Phone 8.1 to play a m3u8 stream, but we ... natively supported by Windows Phone 8.1 See Question&Answers more detail:os...

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

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608 views

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c# - Can the compiler/JIT optimize away short-circuit evaluation if there are no side-effects?

I have a test which goes: if(variable==SOME_CONSTANT || variable==OTHER_CONSTANT) In this circumstances, on a platform ... || as a simple |? See Question&Answers more detail:os...

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

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499 views

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c# - German culture - get double number from JSON with a comma

I have an MVC Web-API application for inner use. I have some pages with forms and numeric fields. I need to install ... instead of "3.5" } } See Question&Answers more detail:os...

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

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789 views

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c# - WIX execute custom action with admin privilege

I have written a custom action for my WIX installer. The action′s Execute-attribute is set to deferred and ... Console.ReadLine(); } } See Question&Answers more detail:os...

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

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652 views

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c# - Regular Expression for validating numbers with one space and one optional special character

Can someone tell me how to validate sequence of numbers with one space and at the end there will be a optional ... the end followed by digits. See Question&Answers more detail:os...

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

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629 views

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c# - How to remove string from process memory?

I have an application which takes a string from the Windows Forms text box and passes it to an API which ... is the best possible solution. See Question&Answers more detail:os...

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

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789 views

1 answer

c# - Reading a "string in little-endian UTF-16 encoding" with BinaryReader

I am following this specification of this file format: https://github.com/rouault/dump_gdbtable/wiki/FGDB-Spec utf16: ... the name of the field? 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# - Search through Tab Control for specific Tab Item based on a String value

I would like to know how to select a tabItem in a tabControl whose name matches a specific string value. I'm ... Tab Item .IsSelected = true; 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# - How to get all the unique n-long combinations of a set of duplicatable elements?

I have found many solutions giving a collection elements combined in all possible orders but they all use every element just ... {"a", "c"}. 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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c# - LINQ to SQL - DuplicateKeyException during update

The code listed below attempts to update a row in the database, but throws an exception instead: System.Data.Linq. ... do insert // ... See Question&Answers more detail:os...

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

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384 views

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c# get values from json

I have a json text and i want to get the values of author name and description tags. no need of other fields ... not set to an instance error! See Question&Answers more detail:os...

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

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648 views

1 answer

c# - Nested ObservableCollection data binding in WPF

I am very new to WPF and trying to create a self learning application using WPF. I am struggling to ... NestedItemsViewModel(); } } } See Question&Answers more detail:os...

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

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733 views

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c# - Send email via Hotmail to gmail

I'm working on app, which sends emails. I've created account on hotmail. This is my code: try { using ( ... can i do that with hotmail? 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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1.2k views

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c# - How to access gRPC service from WPF running .NET 4.7.2?

I have created a gRPC service in .NET Core which needs to be used from a legacy WPF application running on .NET 4.7 ... from .NET 4.7.2 WPF? See Question&Answers more detail:os...

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

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493 views

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c# - WP - how to remove underline in hyperlinkButton programmatically?

I have developed an hyperlinkButton in C#. The underline in hyperlinkButton irritates me. I don't know how to remove ... ", UriKind.Absolute) }; See Question&Answers more detail:os...

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

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495 views

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c# - XmlResolver: XSLT compiler error

I have troubles with XmlResolver class. I have a few XSLT files saved in MS SQL database in xml datatype column. ... from a file. Thanks, Petr See Question&Answers more detail:os...

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

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506 views

1 answer

c# - Automatic .ToString()?

I have a method like this: void m1(string str) and have a class like this: public class MyClass { public ... and has been implemented by Class2. See Question&Answers more detail:os...

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

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508 views

1 answer

c# - Help needed with unloading .DLL's from AppDomain - Still not working even with ShadowCopy

I am trying to do the following. App A is the "mother app". It stays open. App B is just a .DLL where ... and it still yields 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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504 views

1 answer

c# - Regex to get one character not followed with digit

How can I get first character if not have int inside: I need to look all the place have '[' without ... characters while I need only 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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