Recent questions tagged C#

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c# - XmlDocument.Save() inserts empty square brackets in doctype declaration

Everytime I call the method on XmlDocument.Save(fooFilepath); it inserts two square brackets at the end of the ... t want this to happen. 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# - Pros/Cons Using multiple databases vs using single database

I need to design a windows application which represents multiple "customers" in SQL Server. Each customer has ... in cloud(rackspace) account. 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# - Read appsettings.json from a class in .NET Core 2

I need to read a list of properties from appsettings.json file (section: placeto) in a business class, but I ... trankey": "sdfsdfsdfsdfsdf" } } 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# - When would == be overridden in a different way to .equals?

I understand the difference between == and .equals. There are plenty of other questions on here that explain the ... how .equals is overridden? 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 Factory Pattern that will satisfy the Open/Closed Principle?

I have the following concrete Animal products: Dog and Cat. I am using a parameterized Factory method to create ... anti-pattern in my design? See Question&Answers more detail:os...

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

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360 views

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c# - DataGridView ID Column Will Not Hide

I have a DataGridView bound to an ObjectDataSource some of the columns are hidden including the ID column. The ... could be missing? 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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c# - Some part of your SQL statement is nested too deeply. Rewrite the query or break it up into smaller queries

I have action in my controller which calls the following method : public IQueryable<AaaUserContactInfo> getcontactinfo( ... error?? UPDATED:- 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# - Deserialize a property as an ExpandoObject using JSON.NET

For example, there's an object like the next one: public class Container { public object Data { get; set; ... could be an associative array. 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# - Given an Automation Element how do i simulate a single left click on it

AutomationElement child = walker.GetFirstChild(el); using windows automation How do i simulator a left single click on Child ? 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# - Best way to override SaveChanges()

We have worked on a project for 1 month and there are 6 entities without any relationship with other entities. ... very appreciated. Thank you. See Question&Answers more detail:os...

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

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299 views

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c# - Convert a list<int> to a joined string of ints?

I have an int array with the value 3,99,6. How do i convert the array into the string 3,99,6 with linq? 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# - I'm having problems understanding IQueryable<T>

So I'm trying to understand IQueryable<T>. A tutorial I'm reading suggests using it but not really sure why ... item.ItemNumber select item; } 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# - Using Reflector To Create VisualStudio Project

I have a .exe app which I want to understand better - I can see it in reflector Is there any way to ... can view it properly in Visual Studio? See Question&Answers more detail:os...

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

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273 views

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c# - Functional way to check if array of numbers is sequential

Let's say that an array is sequential when each successful element has the value of previous element + 1. Suppose ... a poker hand is straight. 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# - cannot be accessed with an instance reference; qualify it with a type name instead

Using Example 1: Creating, starting, and interacting between threads on this MSDN tutorial more specificaly line 3 to ... void testThread() { } See Question&Answers more detail:os...

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

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162 views

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c# - Selenium error: No response from server for url http://localhost:7055

I'm using Selenium, C#, NUnit to write tests, sometimes I getting below error:- OpenQA.Selenium. ... little bit better 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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c# - Custom Mapping with AutoMapper

I have two very simple objects: public class CategoryDto { public string Id { get; set; } public string ... not just on Category/CategoryDto. See Question&Answers more detail:os...

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

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426 views

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c# - Entity Framework won't detect changes of navigation properties

I'm having trouble with detecting changes of a navigation property: My testing model looks like this: public class ... of the AddressId 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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227 views

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c# - How to use Session Variable in MVC

I have declared Session variable in "Global.asax" file as, protected void Application_Start() { AreaRegistration. ... ("_SessionCompany",temp); See Question&Answers more detail:os...

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

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461 views

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c# - SMTPException : Unable to read data from the transport connection: net_io_connectionclosed

I know that this question looks like duplicate of dozens other questions while its not. When ever i try to ... problem that raising 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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242 views

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c# - How do i show enum values in a combo-box?

How do i show enum values in a combo-box? The code below result in the combobox having all displayed names ... _id"; cbState.DataSource = AL; See Question&Answers more detail:os...

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

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858 views

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c# - How should IPC be handled in .NET Core?

In a past .NET Framework project, our main application ran as a Windows Service and we used WCF ... alternatives would be 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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320 views

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c# - Press Escape key to call method

Is there a way to start a method in C# if a key is pressed? For example, Esc? 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# - How to call method in window (.xaml.cs) from viewmodel (.cs) without introducing new references in wpf

I'm looking for a simple way to call a method in my Main Window, but I want to call it from my ... in programming even before that, either. See Question&Answers more detail:os...

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

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921 views

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c# - HttpUtility.ParseQueryString() always encodes special characters to unicode

When using HttpUtility from System.Web, I find that everytime I call the method .ParseQueryString I am having special ... for the help/advice! See Question&Answers more detail:os...

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

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233 views

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c# - Validate string is base64 format using RegEx?

I have been looking how to validate a base64 string and came across this. ^(?:[A-Za-z0-9+/]{4})*(?:[A-Za- ... allow "==" aswell as "=". 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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349 views

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c# - RabbitMQ channel creation guidelines

I'm writing a simple class that my apps will use to send and receive messages using RabbitMQ. I've read ... consumers/publishers, not much more. See Question&Answers more detail:os...

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

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437 views

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c# - app.config configSections custom settings can not find schema information

I am just learning about app.config in respect of creating custom sections. I have that part working, it compiles ... for any and all help Jon See Question&Answers more detail:os...

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

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