Recent questions tagged c#

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c# udp socket communication - Only one usage of each socket address (protocol/network address/port) is normally permitted

I'm trying to make two applications. One will be sending data to a specific udp port, and the other will be ... ). Any help will 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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c# - No Entity Framework provider found for the ADO.NET provider with invariant name 'MySql.Data.MySqlClient' - WCF

I am following the tutoriel here (in french) but I have this commun error coming when I am testing ... references in the WcfSelfHosting 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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c# - Trigger volume buttons to take picture UWP

I try to use a selfie stick, but as windows 10 camera app does not provide the possibility to take picture ... anyone be able to achieve 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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c# - NHibernate and WCF Serialization(Unidirectional)

Object graph for type '[type]' contains cycles and cannot be serialized if reference tracking is disabled. I have ... article worth's sake). 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# - Send raw data to print not working

I want to send raw data to print, avoiding printer selection (fast print). I am trying to use this helper ... documents. What can be wrong? See Question&Answers more detail:os...

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

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279 views

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c# - How can I pass several methods (with parameters) AS a parameter?

Suppose I have the following WCF code: try { ServiceClient proxy = new ServiceClient(); proxy.ClientCredentials. ... client after each call. 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# - Script runs slower in the dotnet WebBrowser control

I use the WebBrowser control and Smooth Div Scroll in my winforms application to render a html marquee. I ... What is causing this 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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c# - How to get serverside renaming filename in clientside while using AsyncFileUpload

server sidecode protected void UploadComplete(object sender, AjaxControlToolkit.AsyncFileUploadEventArgs e) { rlativepath = ... get 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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c# - System.OutOfMemoryException with JSON.NET with List<object>

I'm doing a process where my server generates a file with JSON.Net with 25000 records and size of 85MB, then this ... Filial { get; 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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c# - How Convert UTC Date & time to local time using different timezone Nodatime

i am using a function which is taking date time over the internet from external server. here is the ... :ss", CultureInfo.InvariantCulture); See Question&Answers more detail:os...

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

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553 views

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c# - Converting .dds to .png: is XNA really this convoluted?

I have a .dds file and I want a .png file. Although I already found out about the DevIL.NET library, the ... XNA from non-XNA code in general. See Question&Answers more detail:os...

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

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462 views

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c# - SQL Query that runs fine in SSMS runs very slow in ASP.NET

I have an asp.net page that loads a query which we know to run fine (within 1 to 2 seconds) when ... finally { sqlConnection.Close(); } See Question&Answers more detail:os...

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

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485 views

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c# - Transpose a datatable

I have the data table below. I would like to change the data table to transform the data table into the one next to it. ... 2 Col 3 || 30 || 3 See Question&Answers more detail:os...

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

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608 views

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c# - Combine two lambda expressions with inner expression

I have the next class structure: public class Order { public User User { get; set; } public string Name ... without rebuilding it from scratch? See Question&Answers more detail:os...

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

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423 views

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c# - Import RSA CngKey and store in MicrosoftSoftwareKeyStorageProvider

I have an exported RSAParameters private key that I'd like to import into another machine. I can save new keys ... I need to make this 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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404 views

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c# - How to access textBox text in another form

I have 2 forms: Form1, Form2 In Form1 I have a textBox with some data that user have to enter. I need the ... run time. can any body 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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498 views

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c# - ASP.NET Boilerplate - Error building new project for MVC and EF combo

I have just downloaded, today, the free startup template for MVC5 and EF. On opening, restoring all packages ... appreciated. 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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400 views

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c# - Simulate 10,000 Azure IoT Hub Device connections from Azure Service Fabric cluster

We are developing a .Net Core service that shall be hosted in Azure Service Fabric. This SF Service ... AMQP connection multiplexing maybe? 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# - How to bind a simple string value to a text box?

I am using wpf. I want to bind a textbox with a simple string type value initialized in xaml.cs class. The ... () { InitializeComponent(); } } 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# - Instantiate a random class on program start

I'm just having a play around with inheritance and a few other concepts at the moment. I have created a ... object from one of these classes? See Question&Answers more detail:os...

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

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707 views

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c# - Loading XML to an XDocument with a URL containing an ampersand

XDocument xd = XDocument.Load("http://www.google.com/ig/api?weather=vilnius&hl=lt"); The ampersand & isn't ... an ampersand in the querystring? See Question&Answers more detail:os...

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

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543 views

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c# - 400 Bad Request Exception: Simple SOAP WCF service with small data

I have a simple WCF service suing SOAP. I have a very simple operation GetMultiplied with very small ... /client> </system.serviceModel> See Question&Answers more detail:os...

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

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406 views

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c# - Proper struct layout from delphi packed record

I'm converting a delphi app to C#. There are a bunch of packed records, and according to a similar ... FileAccess.ReadWrite, FileShare.None)); See Question&Answers more detail:os...

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

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785 views

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c# - Linq query DateTime.Date.DayOfWeek

Trying to get only Thursdays of 1 year back using (var context = new Context1()) { // Get 1 ... and entity navigation properties are supported. See Question&Answers more detail:os...

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

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427 views

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c# - One WCF service – two clients; One client does not work

I have one WCF service and two console app clients. Service: The service code is created from a wsdl contact ... > </service> </definitions> See Question&Answers more detail:os...

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

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410 views

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c# - How to ensure that async method finished work?

I'm very new to threads, so my thoughts and questions might be a bit silly :) I fill WinForm control with ... advice how to solve this 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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266 views

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c# - Checking for successful uninstall

I'm trying to automate an install process in which I uninstall a previous version and install a newer version ... difficult if not impossible. See Question&Answers more detail:os...

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

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535 views

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c# - Rendering from memory using DirectShow

I'm very new to DirectShow and I'm looking for a way to render a video which is already loaded into the memory ... me a highlight of the path. See Question&Answers more detail:os...

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

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