Recent questions tagged C#

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I use update panels all the time when i wanna to update specific part of my page but recently i face ... panel using with page methods ? See Question&Answers more detail:os...

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

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384 views

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c# - Send multipart/form-data content type request

The follow http post request send data using multipart/form-data content type. ------------------------ ... where i can to get this numbers. See Question&Answers more detail:os...

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

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309 views

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c# - Simple Encryption/Decryption method for encrypting an image file

My requirement is that I need simple encryption/decryption methods in C# to encrypt and decrypt an image (maybe gif/ ... ..can someone 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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201 views

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c# - How to send zip files to ASP.NET WebApi

I'm wondering how I can send a zip file to a WebApi controller and vice versa. The problem is that my WebApi ... . Any idea how this is done? See Question&Answers more detail:os...

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

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232 views

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c# - Entity Framework - Inserting entity with multiple models and databases

I have my domain split into multiple Entity Framework models. I have some shared entities that span multiple ... master SQL Server database. See Question&Answers more detail:os...

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

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208 views

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c# - Creating Dynamic Predicates- passing in property to a function as parameter

I am trying to create dynamic predicate so that it can be used against a list for filtering public class ... create the predicate inside 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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716 views

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c# - How to set ListView to Start showing the last Item instead in Xamarin Forms?

I have a list of Items being handled by the ListView. By default, the ListView shows the from start to bottom ( ... the chat and scroll to 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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346 views

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c# - How come classes in subfolders in my App_Code folder are not being found correctly?

I am getting the following error when I put class files in subfolders of my App_Code folder: errorCS0246: The type ... at all. 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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179 views

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c# - memory allocation for value type inside reference type in .net

I think this is a very trivial question but I am not able to get a definite answer to it on the net ... { //Other properties here } See Question&Answers more detail:os...

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

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429 views

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c# - Receive notification when RegistryKey Value was changed

I want a notification when a specific RegistryKey in HKEY_CURRENT_USER is changed. So far I tried this ... as RegistryValueChangeEvent. (MSDN) See Question&Answers more detail:os...

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

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171 views

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c# - Problem with SerialPort

I'm working with SerialPort to communicate (read only) with barcode reader. I've installed driver to operate with ... the situation is the same. See Question&Answers more detail:os...

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

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238 views

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c# - Retrieve old searches from Google web history

I want to retrieve old Google searches which I did a few years/months back and that are present in Google web ... any answer for my question! See Question&Answers more detail:os...

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

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197 views

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c# - Oracle Instant Client and Entity Framework trouble with configuration

I'm trying to learn and figure out if it is possible to deploy an MVC, EF, ODAC 11.2.0.3 app to a ... lot to learn. Thanks in advance. cheers See Question&Answers more detail:os...

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

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902 views

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c# - Record input from NAudio WaveIn, and output to NAudio WaveOut

I want to be able to get input from a microphone device via NAudio.WaveIn, and then output that exact input to ... . How would I do 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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225 views

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c# - Update Sharepoint List Item

I got following error... System.NullReferenceException: Object reference not set to an instance of an object. at ... } What's the 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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204 views

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c# - Navigating to a new page from the View Model in Windows Phone 8.1 universal app

I am working on a windows phone 8.1 universal app and want to find the best way of handling page navigations ... using MVVM-Light in my project. 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# code for select all checkbox in wpf datagrid

I need some c# code to select / deselect all checkboxes in a datagrid in WPF 3.5 framework. I would like ... checkbox in the grid. Please 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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245 views

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c# - Rendering SurfaceTexture to Unity Texture2D

I came up with simillar questions earlier, but they weren't good clarified and right now ... ("glRenderBufferStorage setupBuffers"); GLES20.glFramebufferRenderbuffer(GLES20.GL_F...

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

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181 views

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c# - How to add WCF templates to Visual Studio Express?

I am working through the book Learning WCF by Michele Bustamante, and trying to do it using Visual Studio C# ... ? Or config file somewhere? See Question&Answers more detail:os...

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

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161 views

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c# - What's a good alternative to firing a stored procedure 368 times to update the database?

I'm working on a .NET component that gets a set of data from the database, performs some business logic ... , 0, @PromoCode, @TotalDiscount End See Question&Answers more detail:os...

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

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453 views

1 answer

c# - Converting Numbers from Western Arabic Digits "1,2,3..." to Eastern Arabic Digits "?, ?, ?...."

I need to convert date stored in database into Hijri and display the same in Arabic I used the Culture to ... am developing in ASP.NET c# 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

1 answer

c# - preventing multiple instance of one form from displaying

I am working on an application in which there is one main form and several other forms that can be used concurrently. ... (); help.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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191 views

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c# - How do I create a "custom protocol" and map it to an application?

How would one go about creating a "custom protocol?" I know you can create a URL protocol by adding a number ... I thought). Any ideas? 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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460 views

1 answer

c# - WebAPI Custom Model binding of complex abstract object

This is a tough one. I have an issue with binding a model from JSON. I am attempting to resolve polymorphic-ally the ... "BValue": "BVal" } ] } See Question&Answers more detail:os...

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

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529 views

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c# - What is better way to validate business rules in ASP.NET MVC application with 3 layer architecture?

I'm developing a ASP.NET MVC application with 3 layer classic architecture 1. data access (Repositories) 2. ... problem? 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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273 views

1 answer

c# - How do I use Html.EditorFor to render radio buttons in MVC3?

Here's my model: [Required] [Display(Name = "I'm a:")] public bool Sex { get; set; } And my editor ... the values of my enum in my form? 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

1 answer

c# - Remember me functionality in ASP.NET Form Authentication doesn't work

I'm using ASP.NET forms authentication for logging users into a website we're developing. Part of the functionality ... ? Thanks in advance, F See Question&Answers more detail:os...

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

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288 views

1 answer

c# - Is HTTP connection pooling possible?

For a C# webservice that contacts a limited set of other servers, I wish to create 1 HTTP connection pool ... to approach building one myself? See Question&Answers more detail:os...

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

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