Recent questions tagged C#

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c# - Entity Framework Filter By PrimaryKey

I'm writing a generic crud service I'm trying to implement the Get method with an optional virtual method to ... primary key from a DbSet? See Question&Answers more detail:os...

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

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325 views

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c# - Database selection before routing in ASP.Net MVC

I'm looking for a way in asp.net mvc 4, to select database settings from web.config before any ... database query before every route runs 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# - What ways can I ensure that a string property is of a particular length?

I've created some classes that will be used to provide data to stored procedures in my database. The varchar ... pasting to get this right. See Question&Answers more detail:os...

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

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337 views

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c# - Reliably detecting that another of my applications is running

I have two applications, a WinForms app and a Windows Service that will both run on the same machine. I want the ... . Is there a better 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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277 views

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c# - Listen to Browser's requests

Using the following code: HttpListener listener = new HttpListener(); //listener.Prefixes.Add("http://*:80/"); ... to a browser's requests? See Question&Answers more detail:os...

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

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373 views

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c# - Issue with EnumWindows

When enumerating windows using EnumWindows, I get hundreds of handles instead of one per open window on my ... mainwindow handle. 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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549 views

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c# - how to compare ip addresses

How to compare IP Address that is stored in an array of Ip[0] with remote Endpoint?? Please Help me. See Question&Answers more detail:os...

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

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284 views

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c# - How to Show a Page if Application is Launched for the First Time

I am wondering how to signal whether an appication is launched for the very first time, or has already been ... for this specific method? } See Question&Answers more detail:os...

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

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256 views

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c# - How can I check if website is already opened in a webbrowser?

I'm doing this: Process.Start("http://www.google.com"); After the default webbrowser is opened the website ... is already opened then close 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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270 views

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c# - Display specific image from SQL database with image control

I have a search page that a user can use to search for certain information about a device (ex. computer) that ... be glad to post it. 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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310 views

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c# - How to hook an application?

I'm trying to hook the creation of a windows in my C# app. static IntPtr hhook = IntPtr.Zero; static NativeMethods. ... ("CONTENT", "TITLE"); } See Question&Answers more detail:os...

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

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282 views

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c# - Is it possible to bind two source properties to one control property?

Using WPF, is it possible to bind two source properties, via one-way binding, to one control property (ie ... set the two values manually. See Question&Answers more detail:os...

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

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475 views

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c# - Create 1bpp mask from image

How do you create a 1 bit per pixel mask from an image using GDI in C#? The image I am trying to create ... C#, any 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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546 views

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c# - Using tasks/ ThreadPool on IIS application (asp .net)

We have an asp.net application on an iis 7. we need to create an async process to do calculating (using a web ... UI guys like the pool). Tanks See Question&Answers more detail:os...

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

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367 views

1 answer

c# - Is maintain the transaction with a static LINQ to SQL DataContext in asp.net possible?

I have ASP.NET application which is connected with SQL server using LINQ to SQL. Where as i have a static ... safe for each logged in user? See Question&Answers more detail:os...

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

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290 views

1 answer

c# - How can an app hook into text selection system-wide?

I'd like to be able to track text selections across any application -- is there a hook to enable this behavior on ... hooks for OS X & Linux? See Question&Answers more detail:os...

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

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556 views

1 answer

c# - Register hotkeys in .NET - combination of three/four keys

I got stuck. Right now, I am using the following code to listen to hotkeys: [DllImport("user32.dll")] public static ... } base.WndProc(ref m); } See Question&Answers more detail:os...

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

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861 views

1 answer

c# 4.0 - how to apply the load on demand (Lazy loading) concept in datalist for Images using asp.net?

In my asp.net application have one data list, page load event I have to bind number of image items(1000), ... = ds; listView.DataBind(); See Question&Answers more detail:os...

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

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475 views

1 answer

c# - print on dot matrix printer in .net

anyone can please tell me the code how to print documents on dot matrix printer in C# windows application. See Question&Answers more detail:os...

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

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396 views

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c# - How to handle Form caption right click

I'd like a context menu on the caption bar right click any tips/samples pref in c# ? UPDATE - for various ... is composited dynamically so.... See Question&Answers more detail:os...

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

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305 views

1 answer

c# - How to update an value in app.config file?

This is my code: Configuration configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); ... unchanged. See Question&Answers more detail:os...

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

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387 views

1 answer

c# - Is there a way to validate incoming HttpPostedFilebase files in MVC 2?

I have a couple of files I need to save in addition to some simple scalar data. Is there a way for me to ... it doesn't seem to be working. See Question&Answers more detail:os...

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

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413 views

1 answer

c# - WCF Restful service file upload with multi-platform support

can anybody please tell me how can i create a WCF Rest service through which i can be abel to upload files to ... using android , iphone & WP7. See Question&Answers more detail:os...

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

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363 views

1 answer

c# - Apply Google AMP (Accelerated Mobile Pages) to ASP.NET Core site

I'm trying to create an AMP page with ASPNET Core MVC. I haven't been able to find many documents if any. For ... </article> </body> </html> See Question&Answers more detail:os...

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

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328 views

1 answer

c# - How to drawn my own progressbar on winforms?

Yoyo experts! I have several progressbars on my Windowsform (NOT WPF), and I would like to use different colors for ... my form looking up :/ See Question&Answers more detail:os...

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

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326 views

1 answer

c# - how to get custom message headers of wcf service in android

I am using this ->> link <<- all code for setting custom message headers in wcf but i am unable to get ... Thank you so much reading my problem. See Question&Answers more detail:os...

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

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336 views

1 answer

c# - Capture SMTP errors in .NET

Normally, I'd send emails like that: int statusCode = 0; string error = null; try { smtp.Send(mailMessage); ... com doesn't exist. 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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395 views

1 answer

c# - Asterisk click to call

Maybe some of you may know how to achieve this. I want something like this: Click on link/button My phone ... one side. 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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