Recent questions tagged C#

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c# - print double with digits after decimal point

How can I customize a function in which I print doubles? I would like this function to get number of digits ... after comma specified by 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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282 views

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c# - Is there way to change language while app running

everyone. :) I have App with a multi-layout and I'm trying to change the language while running the app. ... /RelativeLayout> 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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510 views

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c# - LayoutMdi fails in form's OnLoad event

Hello I have OnLoad eventhandler like this: private void MainView_Load(object sender, EventArgs e) { LayoutMdi(MdiLayout. ... I make it 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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c# - With MongoDB, is it possible receive notifications of 3rd party edits via .NET Reactive Extensions (RX)?

I'm wondering if anybody knows if its possible to get live notifications of any edits to a MongoDB database ... 11/event-streaming-with-mongodb/ 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# - WatiN FireEvent not passing event properties in FireFox

This had been logged as a bug in sourceforge though now deleted. I'm using FireFox 3.6 with associated jssh. I ... or something I'm doing 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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796 views

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c# - Perform live video stream processing from CaptureElement & MediaCapture

In my Windows 8 Store Application, I tend to perform live video stream processing (Face detection for ... from CaptureElement & MediaCapture? 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# - HttpWebRequest and HttpWebResponse shows old data

After updating the data, when the webservice is called, it still fetches old data. New data is loaded ... request); return taskComplete.Task; 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# - Operation is not valid while ItemsSource is in use. Access and modify elements with ItemsControl.ItemsSource

I'm trying to make 2 list boxes where I can press on a button to add an item selected from ... with ItemsControl.ItemsSource Any suggestions? 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 speed up rendering of vertical scrollbar markers

I have a customized vertical scrollbar which displays markers for selected items in a DataGrid. The problem I'm facing ... ; public static MyClass Instance { get { if (m_Inst...

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

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c# - How to use ActiveX component in ClassLibrary without Winforms

How is it possible to use an ActiveX control in a ClassLibrary type project? I intend to call it ... register itself in deployed environment. See Question&Answers more detail:os...

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

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502 views

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c# - How to merge two images into a single Jpeg

I need to be able to take multiple images and overlay a smaller one on top of a larger one and save the ... go about accomplishing this in 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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c# - WPF: Update button if text in TextBox changes

To learn WPF Command and CommandParameter I have a small WPF application with one TextBox and one Button. ... button the default behaviour? 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# - The type or namespace name 'Ping' could not be found, although there is a dependencie and a using

I am creating a little program to ping a computer within a network. For this i am trying to use the class ping, ... 5.0 file:Program.cs line:9 See Question&Answers more detail:os...

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

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601 views

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c# - Quartz.Net scheduler works locally but not on remote host

I have a timed quartz.net job working fine on my dev machine, but once deployed to a remote server it is ... when called from elsewhere } } } See Question&Answers more detail:os...

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

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708 views

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c# - LINQ to Entities does not recognize the method 'Int32 Parse(System.String)' method,

I am using Entity Framework, and I have a line of code that convert string field (id)to int and compare with a ... , so any help would be great. 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

1 answer

c# - Unable to use instance variable in a static method

Why we cannot use instance variable in a static method? I know that static methods are called without creating instance of ... = b + 1; } } 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# - Error when inserting finger print data into database table

I am working in a project that's already built and functional at the moment. But there is an issue when I ... bit confused how to resolve 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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428 views

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c# - (13) The merchant login ID or password is invalid or the account is inactive

I want to implement Authorize .net payment gateway in my website using asp.net. I am a beginner in this. Can ... ."); } return response; } See Question&Answers more detail:os...

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

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597 views

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c# - WCF Service custom message inspector

I built a WCF Service that uses custom username and password authentication and I am testing it from the client app ... on how to build one See Question&Answers more detail:os...

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

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456 views

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c# - How to scroll a RichTextBox control to a given point regardless of caret position

In my WinForms app I have a RichTextBox control containing a long text. I need to scroll it programmatically to a ... I do this? 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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599 views

1 answer

c# - How to ensure process window launched by Process.Start(ProcessStartInfo) has focus of all Forms?

c#.How to ensure process window launched by Process.Start(ProcessStartInfo) has focus of all Forms? 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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621 views

1 answer

c# - Handle Mouse Hover on Titlebar of Form - Show Title of a Minimized MDI Child in ToolTip

I'm looking for a message like WM_NCMOUSEMOVE that represents the mouse is hovering on title bar of a form. Currently I ... . 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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350 views

1 answer

c# - OpenXML takes much longer than OLEDB to read rows from Excel sheet

When I used OLEDB, it takes only 2 - 3 seconds to read 3200 rows from an Excel Sheet. I changed to the ... change this to code to read faster? See Question&Answers more detail:os...

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

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561 views

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c# - Find if process is responding without using System.Diagnostics.Process.Responding

Good day everyone. This problem was part of another one which it as been solved, i realized that what i thought ... even when they aren't. See Question&Answers more detail:os...

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

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895 views

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c# - Override property setter and getter

Is there a way to override the setter and getter of an auto property with an attribute? like this: [CustomAttribute] ... value = 10; } } } See Question&Answers more detail:os...

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

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340 views

1 answer

c# - WPF control in windows forms?

I would like to create some custom UI controls that work with both WPF and Windows Forms. Is this ... Are there any other considerations? See Question&Answers more detail:os...

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

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457 views

1 answer

c# - Example of using Shared Services. Prism

I have 5 modules and I am using EventAggregator pattern to communicate between modules. And it seems to me ... would be highly 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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278 views

1 answer

c# - ObservableCollection Property Class

I repeat this property in my MVVM project too many times to count. What would be the correct way to create ... { _resultCollection = value; } } See Question&Answers more detail:os...

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

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