Recent questions tagged C#

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c# - Serial number of Hard Disk or Hard Drive

At first it may seems it is very easy question and some body may be trying to give me advice to try Google ... number in .net? Hdd Serial Number See Question&Answers more detail:os...

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

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397 views

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c# - Hiding a form and showing another when a button is clicked in a Windows Forms application

I am doing an application a Windows Form application. At first, a certain form appears, and after the user hits the ... ) form2.Show(); } } 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# - Accessing Properties in other ViewModels in MVVM Light

I have a main ViewModel containing a List of items which I'm using in a certain amount of UserControls, which ... = itemsViewModel; } ... 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# - Linq: group by year and month, and manage empty months

I have the following Linq to group a list by year, then by month. var changesPerYearAndMonth = list .GroupBy( ... Linq query? 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# - Creating Sqlite Embedded database from application

I have a winforms app that uses sqlite to store data. Instead of shipping a blank database, can I use scripts ... the install is for all users. See Question&Answers more detail:os...

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

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302 views

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c# - Liskov Substition and Composition

Let say I have a class like this: public sealed class Foo { public void Bar { // Do Bar Stuff } } And ... it on occasion, but that seems messy. 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# - Show message box in case of exception

I'm wondering what the correct way is to pass on an exception from one method to my form. public void test() { ... way i cannot see my text box. 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# - Dynamically Adding TextBox using a Button within MVVM framework

I keep climbing the steep WPF hill! So I want to create a UI that allows the user to dynamically add ... other container that uses ItemsSource? 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# - Database context and Return Dynamic Result Set in ASP.NET MVC

In MVC 4 and EF 5 i want to run dynamic query. var returndata = Context.Database.SqlQuery(Type, strsql, ... . Row2.. Appreciate any suggestion. 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# - Cannot perform 'Like' operation on System.Int32 and System.String. DataGridView search and filter

I have a form that when I select a column name from a ComboBox, and type in a text box it filters and ... ; dataGridView1.DataSource = dv; } } See Question&Answers more detail:os...

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

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172 views

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c# - Constructing a simple interpreter

I'm starting a project where I need to implement a light-weight interpreter. The interpreter is used to ... -invent the wheel responses) 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 Custom Buttons on Windows Vista/7 Aero Titlebar

I found this question on StackOverflow. Basically, the user wanted to draw custom buttons on the titlebar. I tried ... program is a .NET app. 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# - TDD and Mocking out TcpClient

How do people approach mocking out TcpClient (or things like TcpClient)? I have a service that takes in a ... How should I approach 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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349 views

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c# - Portable class library equivalent of Dispatcher.Invoke or Dispatcher.RunAsync

In .NET, Windows 8 and Windows Phone 7 I have code similar to this: public static void InvokeIfRequired(this Dispatcher ... I'll do some tests. 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# - Strange LINQ Exception (Index out of bounds)

I have a table, we'll call Users. This table has a single primary key defined in SQL Server - an ... SqlProvider.Execute is in fact identical. See Question&Answers more detail:os...

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

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196 views

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c# - Cannot data bind to a control when Control.Visible == false

In WinForms with C# 4.0 / C# 2.0, I cannot bind to a control if the control's visible field is false: ... binding in this way is still unknown. 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# - WCF REST Service JSON Post data

Looking for some guidance on a wcf 4 rest service which is based on the WCF REST Template 40(CS) extension in ... 21:31:14 GMT "Received: " See Question&Answers more detail:os...

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

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260 views

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c# - How would you simplify Entering and Exiting a ReaderWriterLock?

This seems very noisy to me. Five lines of overhead is just too much. m_Lock.EnterReadLock() Try Return m_List. ... how would you simply 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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523 views

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c# - How to get Entity Framework Code First and nullable foreign key properties to work?

I'm trying to create a simple entity framework code first application. I have these classes: public class User { ... to get this to work? See Question&Answers more detail:os...

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

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212 views

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c# - Create a Visual Studio project programmatically

As my question say I want to create a new project based in a template which already created an tested and ... s in the namespace of EnvDTE100 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# - Is this a valid usage of ServiceStack Redis?

I am new to Redis (using it at a hosted service) and want to use it as a demonstration / sandbox data storage ... that I'm not aware of. 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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241 views

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c# - Converting Directed Acyclic Graph (DAG) to tree

I'm trying to implement algoritm to convert Directed Acyclic Graph to Tree (for fun, learining, kata, name it). ... Childs the right name ? :) 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

1 answer

c# - Reactive Extensions: Process events in batches + add delay between every batch

I have an application which at some points raises 1000 events almost at the same time. What I would like to do is ... Rx-Main 2.0.20304-beta. See Question&Answers more detail:os...

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

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254 views

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c# - Why ASP.NET kills my background thread?

I have the following code in my codebehind (aspx.cs): protected void button1_Click(object sender, EventArgs e) { ... more weird. 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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404 views

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c# - Find all substrings between two strings

I need to get all substrings from string. For ex: StringParser.GetSubstrings("[start]aaaaaa[end] wwwww [start] ... think it will be userful. See Question&Answers more detail:os...

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

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201 views

1 answer

c# - Grouping Contiguous Dates

I have a List<DateTime> dates; I have a class that has: class NonWorkingDay { public DateTime Start; public ... or .Where or something. 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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482 views

1 answer

c# - Why does increasing timer resolution via timeBeginPeriod impact power consumption?

I am currently writing an application in C# where I need to fire a timer approx. every 5 milliseconds. From some ... draw are we talking about? See Question&Answers more detail:os...

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

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211 views

1 answer

c# - Why this code throws System.ExecutionEngineException

Background: I am using DirectX 9.0 Managed Libraries to transform arrays of 3d points to 2d screen coordinates. ... would be 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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