Recent questions tagged c#

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c# - Linq to return ALL pairs of elements from two lists?

Given lists l1 = {1, 2} and l2 = {4, 5, 6 } I want to get a new list that has elements: rez = { {1, 4}, { ... 4}, {2, 5}, {2, 6} } 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# - delete folder/files and subfolder

I want to delete a folder containing files and a subfolder, also containing files. I have used everything, but it ... not the folder as well. 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# - Specified element is already the logical child of another element. Disconnect it first

here is the error I have when I want to attach a FrameworkElement to a new Window to publish it to a PNG file ... (element); } stream.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# - Only sources that implement IAsyncEnumerable can be used for Entity Framework asynchronous operations

I'm implementing a Model using EF 6.1.3 and .NET Framework 4.6.1. This model is used by an ASPNET app ... ? thank you in advance for any comment See Question&Answers more detail:os...

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

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449 views

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c# - Setting the Focus to an Entry in Xamarin.Forms

This is just a simplified example, but I'm trying to set this up so that when I open up this page in my ... them to fill in the second entry? 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# - DateTime.Value.ToString(format) gives me 12 hour clock

An extension of this question, I am pulling a date from a database and displaying it in a grid. I have the ... use the 24-hour clock version? 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# - easy way to loop over months and years from a given date

I have been trying to write this loop and it just keeps getting more complicated. Basically I want to take a given ... with m and y } } 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# - Fresh ASP.NET Core API returns empty JSON objects

I have made a .NET Core Web API project to test it out. My problem is, that the API returns an empty JSON ... } } } Am I missing something? 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# - Getting "No type was found that matches the controller named 'SampleSlashBaseService'" when trying to use WebAPI

I have a webapi project with a base ApiController named SlashBaseService: [RouteArea("uBase")] public abstract class ... axd also looks correct. 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 the point of Convert.ToDateTime(bool)?

I was doing some type conversion routines last night for a system I am working on. One of the conversions ... vehicle from working when used. See Question&Answers more detail:os...

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

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857 views

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c# - nameof with generic types

I am trying to get the name of a method on a generic interface. I would expect this to work as the ... break without any build-time errors. See Question&Answers more detail:os...

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

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590 views

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c# - Not all assemblies are being loaded into AppDomain from the bin folder

I have the following method that should retrieve a list of loaded local (in bin folder) assemblies: static ... when the application starts? See Question&Answers more detail:os...

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

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447 views

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c# - Unable to create a constant value of type 'System.Object' in Entity Framework

I have a table named UserTenders having many-to-one relationship with aspnet_Membership table. I am using ... field HasAdminApproved as 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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648 views

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c# - What is the best way to convert Action<T> to Func<T,Tres>?

I have two functions in my class with this signatures, public static TResult Execute<TResult>(Func<T, ... losing some exception information. 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# - Unable to verify assembly data; you must provide an authorization key when loading this assembly

I'm testing the InteractiveConsole example in Unity. I did some configurations as described in the official tutorial. ... to do. Any ideas? See Question&Answers more detail:os...

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

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322 views

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c# - How to create extension methods for Types

I am writing an extension method for parsing JSON string for any given type. I wanted to use the method on ... = MyClass.ParseJson(text); 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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368 views

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c# - Registering throws 'Inheritance security rules violated while overriding member'

For my school project, I'm using the default Account Controller register function that comes with an ... Boolean& completedSynchronously) +155 See Question&Answers more detail:os...

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

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747 views

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c# - MailKit save Attachments

I'm try save attachments from message foreach(MimeKit.MimeEntity at message.Attachments) { at.WriteTo("nameFile"); } File ... 0 MimeKit 1.2.0.0 See Question&Answers more detail:os...

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

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756 views

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c# - Error 1 Inconsistent accessibility: return type is less accessible than method

When I'm building, VS show error. This is my code: public Composite buildComposite(ComboBox subs, ComboBox ... .cs 172 26 Project_HGHTM9 See Question&Answers more detail:os...

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

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757 views

1 answer

c# - StructureMap Exception Code: 202 No Default Instance defined for PluginFamily

I am new to StructureMap. I have downloaded and am using version 2.6.1.0. I keep getting the below error: ... class files? 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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495 views

1 answer

c# - Why can't I initialize readonly variables in a initializer?

Why can't I initialize readonly variables in a initializer? The following doesn't work as it should: class ... it just a compiler limitation? See Question&Answers more detail:os...

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

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597 views

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c# - Nested Parallel.ForEach loops

I have some code which I am currently optimizing for concurrency in multicore architectures. In one of my classes, I ... the inner loop as-is? 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# 6.0 - What CLR is needed for C# 6?

The title says it all: what CLR version is / will be needed to run C# 6 programs? The CLR version is ... but could not find the information. See Question&Answers more detail:os...

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

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431 views

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c# - XML Serialize boolean as 0 and 1

The XML Schema Part 2 specifies that an instance of a datatype that is defined as boolean can have the ... boolean representation in the XML? See Question&Answers more detail:os...

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

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378 views

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c# - Unable to get the designer view window back using windows forms with Visual Studio 2010

I am in process of writing a C# Windows Forms application using Visual Studio Express 2010 ENU SP1. ... will be uninstalled automatically. 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# - Get the largest key in a dictionary

I have a dictionary with keys that are ints. I would like to get the largest key. I don't keep track of keys ... task - maybe you can halve it. See Question&Answers more detail:os...

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

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999 views

1 answer

c# - XmlSerializer: The string '' is not a valid AllXsd value

I'm getting this message,"The string '7/22/2006 12:00:00 AM' is not a valid AllXsd value.", ... <NUM_REFER>2008628116</NUM_REFER> </Detalle> 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

1 answer

c# - Cannot find using System.Data.Linq

I'm using C#, EF 4 in asp.net 4 and VS 2010. I'm trying to load namespace System.Data.Linq with this code ... ) Any idea what I'm doing wrong. See Question&Answers more detail:os...

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

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