Recent questions tagged C#

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c# - How do I print an HTML document from a web service?

I want to print HTML from a C# web service. The web browser control is overkill, and does not function ... empty print preview dialog appears. 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# - Override get, but not set

I have an abstract class that defines a get, but not set, because as far as that abstract class is concerned ... with a special setter 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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c# - How to check If a Enum contain a number?

I have a Enum like this: public enum PromotionTypes { Unspecified = 0, InternalEvent = 1, ExternalEvent = 2, ... How can I do 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# - Url.Action puts an & in my url, how can I solve this?

I want to send the variables itemId and entityModel to the ActionResult CreateNote: public ActionResult CreateNote( [ ... I want to send? See Question&Answers more detail:os...

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

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190 views

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c# - Why do I need the Singleton design pattern?

i try to learn design pattern, but it's really really hard to understand main idea of OOD. i have created my software ... ].ToString(); } } } } See Question&Answers more detail:os...

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

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143 views

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c# - How to display data from database into textbox, and update it

I can display my data in my textbox, dropdownlist after retrieve data from sql database, but when i proceed with ... "UpdateSuccess.aspx"); } } 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# - How to display JSON data in a DataGridView in WinForms?

This is the JSON data that I have: {"testId":1,"testName":"HTML","minScore":20,"score":40,"date":"12-2- ... How can I show it in a DataGridView? See Question&Answers more detail:os...

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

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293 views

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c# - Uploadify ashx file Context.Session gets null

I have a file upload in my site which is done using uploadify it uses a ashx page to upload file to database ... in Mozilla it is always null See Question&Answers more detail:os...

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

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286 views

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c# - Open a WPF Window from WinForms & link form app with WPF app

I'm using Visual studio 2012 & I'm using Win Form app called Form1 & add a new item which is wpf Window is ... in WinForm & the other Wpf ?! 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# - Scrabble word finder with wildcards

I've got a problem and it seems some before me have had similar problems but I haven't been able to find a ... Thank you very much for the help! See Question&Answers more detail:os...

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

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347 views

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c# - WP7 Auto Grow ListBox upon reaching the last item

I'm trying to achieve an effect where more items are appended to the list when the user scrolls down to the last ... when a list has "bounced"? See Question&Answers more detail:os...

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

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155 views

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c# - Javascript Like Modal Window for WinForms

Does anybody know a good Modal Window control sort of like the ones used in Javascript but available for WinForms ( ... (); f.ShowDialog(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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140 views

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c# - How do I get mouse positions in my view model

From MVVM Design pattern, the viewmodel should not know the view. But in my case, I need the view and the ... ? I use MVVM light framework See Question&Answers more detail:os...

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

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304 views

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c# - Using selenium to save images from page

I'm using Selenium & Google Chrome Driver to open pages programatically. On each page there is a dynamically ... straight from Google Chrome? See Question&Answers more detail:os...

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

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156 views

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c# - Searching Hierarchical List

I've got a simple class defined as: public class IndexEntry { public bool HighScore { get; set; } public ... Thanks in advance for your help. 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

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c# - .NET and P2P - writing a P2P messenger

Does anyone have any advice how to write such app? Or maybe knows some nice tutorial? I would like to use ... library? Has anyone used 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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196 views

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c# - EnableCrossAppRedirects - Where is the cross-domain feature documented?

Here an interesting feature of ASP.NET FormsAuthentication explained in this SO answer: How do you pass an ... forms Element for authentication See Question&Answers more detail:os...

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

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229 views

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c# - Serialize object to element with attributes and children

I wish to define classes that will produce the following xml using System.Xml.Serialization.XmlSerializer. I am ... </items> </myroot> See Question&Answers more detail:os...

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

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821 views

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c# - WPF MessageBox with MVVM pattern?

Say I want to display some validation error to the user. In the MVVM pattern, I could have a label that ... message box to be created/displayed? See Question&Answers more detail:os...

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

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398 views

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c# - Twain question: is it possible to scan just one document from feeder?

I am playing with the code from http://www.codeproject.com/KB/dotnet/twaindotnet.aspx I am having a ... feeder? Any suggestions 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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530 views

1 answer

c# - How do you catch CancellationToken.Register callback exceptions?

I am using async I/O to communicate with an HID device, and I would like to throw a catchable exception ... the exception is still not caught. See Question&Answers more detail:os...

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

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446 views

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c# sockets handling multiple clients

I have the following code which I want to implement as my server. As I understand it is async. and ... handle requests from multiple clients? See Question&Answers more detail:os...

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

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222 views

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c# - Printing BlockUIContainer to XpsDocument/FixedDocument

Question How do you print a FlowDocument that have BlockUIContainer? How can I force a Measure/Update/Arrange on a ... { } return null; } See Question&Answers more detail:os...

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

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176 views

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c# - Post "Hello World" to twitter from .NET application

My client would like me to use .NET to post to Twitter, and suggests that I use C#. Q: How do I ... authentication is one of the requirements). See Question&Answers more detail:os...

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

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229 views

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c# - How to map recursive relation on self in Entity Framework code-first approach

All I want to create is basic recursive category. Category is root if RootCategory_Id is set to null and it ... approach using linq-to-sql See Question&Answers more detail:os...

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

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123 views

1 answer

c# - Is it possible to speed this method up?

I have a method that uses loops through 7,753+ objects and Gets the value of each property for each object. Each ... dPs, tod); return tod; } See Question&Answers more detail:os...

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

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334 views

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c# - Reading Properties of an Object with Expression Trees

I want to create a Lambda Expression for every Property of an Object that reads the value dynamically. What I have ... I do to achive my 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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237 views

1 answer

c# - Generic class for performing mass-parallel queries. Feedback?

I don't understand why, but there appears to be no mechanism in the client library for performing many queries in ... m_wait.Set(); } } } See Question&Answers more detail:os...

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

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