Recent questions tagged C#

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c# - DLLImport does not work on Azure App Service Net. 3.1

I recently added not C# dll to my service a which acts as HTTP Client. On my Local Machine (Windows 10) ... ; } return Invoke32(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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c# - How to add data to BoxPlot in WFA?

I'm creating manually a boxplot chart. I have 4 double[] arrays with some calculations results that i want ... want get something like 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# - Convert vector<unsigned char> {1,2,3} into string "1-2-3" AS DIGITS

I want to display numbers in a std::vector<unsigned char> on a screen, but on its way to the recipient, I ... return myString.TrimEnd('-'); } 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# - .GetType().GetProperties() returns properties in different order

I want to check our configuration file and see if it is the same as if I were to create a new configuration ... Name); Help is much 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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c# - How to print WebBrowser control content without showing print dialog?

I want to Print my HTML document directly to a specific network printer without printer dialog window when the end user ... } return 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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c# - A network-related or instance-specific error occurred while establishing a connection to SQL Server. Error Locating Server/Instance Specified)

Moving a web project from test enviroment to the web server made this error occur whenever tehre's an attempt to open ... () // pops the 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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c# - SQL data error: The conversion of a varchar data type to a datetime data type resulted in an out-of-range value

I have a SQL query that's returning this error: The conversion of a varchar data type to a datetime data ... the datepicker to pick dates. 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# - Polly Circuit breaker pattern - For testing connection strings

I'm trying to test whether the connection string is null using Polly. If it is null, I want to try ... message from the Broken circuit Exception See Question&Answers more detail:os...

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

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754 views

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c# - Multiple images from folder

as I'm fairly new to C# and WPF I just can't figure out how to do this. I have a form that should ... , sprite002.png, sprite003.png, 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# - Entity Framework + MySQL class generating

I try to connect MySql database by using Entity Framework but visual studio do not want to generate *.edmx? ... community -mySql 8.0 community 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 possible to activate a tab in another program using an IntPtr?

Thanks in advance. Is it possible to activate a tab in another program using an IntPtr? If so, how? SendKeys ... 1 root contains similar 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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c# - Entity Framework 4.2 : Getting proper database errors

In my ASP.NET MVC 3 application, I use EF 4.2. In my database, I have a unique constraint for a column. I try ... value: " + ex.Message); } } 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 the command codes for ExecuteMso documented?

MS Office apps have an incredible API that lets one execute any command that is accessible from the UI, but ... codes for all of these. See Question&Answers more detail:os...

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

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851 views

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c# - Fastest way to get list in custom order

I need to find the fastest way to get a small list of strings or chars in custom order. I found a lot ... possible to accomplish that goal :) See Question&Answers more detail:os...

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

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672 views

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c# - Ability to carry principal object from client to service side in WCF

In WCF, on the client side, user would be authenticated and his roles/permissions would be stored in Principal/ ... } return composite; } } See Question&Answers more detail:os...

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

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990 views

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c# - Kendo MVC grid with editable enum column

I have a simple model that I need to display and edit in Kendo's MVC Grid component. public class ... Kendo sends correct MyEnum values? See Question&Answers more detail:os...

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

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709 views

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c# - Need a very customized large Winforms grid

I am about to develop a Windows PC application (it can be WinForms or WPF) and my main concern is a UI problem I ... in C#, .NET 4.0. 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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912 views

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c# - Entity Framework 6. Disable ModelCaching

OK, Google, I am not able to googling it. Documentation says The model for that context is then cached and is for ... true-way to do my task? See Question&Answers more detail:os...

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

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788 views

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c# - Regular expression with optional part and negative lookahead

I need check if a string contains the pattern: starts with "A" followed by zero or more spaces and then ... matches the undesirable "A B". See Question&Answers more detail:os...

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

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975 views

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c# - Why does this attempt to create a PivotTable (Excel Interop) fail?

Based on code I found here, I'm trying to create a Pivot Table like so: var range = _xlSheet.Range[_xlSheet. ... Month?" (twice) before it fails See Question&Answers more detail:os...

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

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692 views

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c# - String greater, less, and equal comparison in XmlDocument

i'm trying to do a string comparison in a XmlDocument, and the following is what i tried. I am wondering why the ... 19T03:25:00-08:00']"); See Question&Answers more detail:os...

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

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761 views

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c# - Can I add custom properties to PasswordCredential.Properties?

In WinRT API there is Windows.Security.Credentials namespace which contains the PasswordCredential class. Using it we can ... ; v.Add(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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830 views

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c# - How to use a mutex

I have one thread, that is sending data stored in a buffer of type List< string> via tcp. Another thread is writing into ... () { //... } } See Question&Answers more detail:os...

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

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816 views

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c# - Error: Does not contain a constructor that takes 0 arguments

I am getting the error "Does not contain a constructor that takes 0 arguments" from my c# code below: ... something stupid. 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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877 views

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c# - TFSBuild 2013 unable to change msbuild version

I have a TFSBuild 2013 server that we are trying to now build UWP projects with, but we cannot seem to make it use ... I'm at my wits end :) See Question&Answers more detail:os...

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

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977 views

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c# - Convert month name to month number in SSIS

I have an input column "MonthName" which has values in the following string format 22-MAY-2017 02:29:33.00. I ... names ex: may, june, july. 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 change single cell color of datagrid in wpf?

I want to change background color of a particular cell of this grid at runtime(show booked seats).i am ... MyGrid.ItemsSource = dt.DefaultView; See Question&Answers more detail:os...

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

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1.0k views

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c# - DateTime.ParseExact format string

I have a web application that passes a DateTime from one page to another through the query string. It was ... wrong with my format 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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