Recent questions tagged C#

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c# - Can I use Graphics object in any other event than Paint event?

I have a WinForm with a docked Panel. I overrode the Panel's Paint event. I have a line that sets up ... in any other event like MouseMove? See Question&Answers more detail:os...

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

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779 views

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c# - Add a field into JSON array

I got a JSON string with an array like this: { "Id": 123, "Username": "Sr. X", "Packages": [ { "Name": ... . Have any one of you done it before? See Question&Answers more detail:os...

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

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922 views

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c# - Binding XML to Combobox

While trying to bind XML to Combobox data source, I am getting an error "Complex DataBinding accepts as a data ... /> </managers> 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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791 views

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c# - How to handle Luis intent with parameters with prompt

I have an intent in LUIS with several required parameters. I also set prompt for these parameters so that when they ... Framework? I'm using 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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955 views

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c# - Requested client not authorized

I am trying to get google users from my domain using google service account. But it throws error Error:" ... Execute(); 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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683 views

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c# - TextPreview for Textbox

Reworked Question to clarify my needs: I want to add a preview Text to Textboxes when they're empty, just like ... why isn't that 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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735 views

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c# - Handle multiple delete events from grid with single events handlers asp.net

I have two grid which contains delete button and I am using RadAjaxManager which will fire ajax request from ... Remove1 and Remove2 buttons. See Question&Answers more detail:os...

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

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688 views

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c# - Adding rows to second column ONLY - populating data using a for loop

I calculate the amount of rows I want to have in my second column using a for loop based on reading how many ... to the first column later on. See Question&Answers more detail:os...

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

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687 views

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c# - Colour percentage in Bitmap

Started without knowing about bitmap** To get total pixels in bitmap height*Width To get total white pixels Where R== ... 100 - (black + white); 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# - Local functions benefits with async methods

According to the Microsoft Docs: There are two common use cases for local functions: public iterator methods and ... with a better example? See Question&Answers more detail:os...

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

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1.1k views

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c# - Detecting Audio Input & output devices connected to system

I want to findout how many audio input and output devices connected to my system in C#.net Please suggest any. 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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872 views

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c# - I want to import data from CSV file to SQL database using Entity Framework

I want insert data from CSV file to SQL table. Here is my code I don't know how to go further var readcsv = ... public string dob { 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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728 views

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c# - can't start winForm from a thread

I am trying to start a winForm from a thread, but when i do so, the form show but none of the labels ... give to help understand 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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980 views

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c# - ITextShape Clickable Polygon or path

Anyone out there able to create clickable annotation that is an irregular shape using iTextSharp. I know I can ... shape it is not clickable. See Question&Answers more detail:os...

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

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665 views

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c# - Why is calling await completing the parent Task prematurely?

I'm trying to create a control that exposes a DoLoading event that consumers can subscribe to in order to ... get the behaviour I expect? 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

1 answer

c# - Replacing dll to a newer version

I have a Caliburn.Micro application with many projects. Several projects refer to the same dll in a separate folder. ... but it shows up empty: See Question&Answers more detail:os...

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

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943 views

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c# - TransactionScope error in ambient transaction does not rollback the transaction

I use an ambient transaction like this : using(TransactionScope tran = new TransactionScope()) { CallAMethod1();//INSERT ... -2; } } //etc See Question&Answers more detail:os...

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

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1.2k views

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c# - How to save changes to related table in MVC 5 and EF 6 - Entity Framework Master-Detail

I have two tables, Promotion and PromotionLine, with a foreign key defined as PromotionLine.PromoID = Promotion ... this update differently? See Question&Answers more detail:os...

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

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867 views

1 answer

c# - Convert a method to use async

I am converting a authentication process to support async and the VS 2015 IDE is warning me with the following message ... ; } 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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676 views

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c# - Calling method on correct thread when control is created in new Thread()

I've created a new WebBrowser() control in a new Thread(). The problem I'm having, is that when invoking a ... e){ initialized = true; } See Question&Answers more detail:os...

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

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1.2k views

1 answer

c# - XDocument to List of object

The content of an XDocument is the XML below. I'd like to get a List(), see at the end of this message. <myXml> < ... = "D"; Value = "D2" }; See Question&Answers more detail:os...

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

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790 views

1 answer

c# - Inheriting DefaultContractResolver and treating referenced entities differently

I want to serialize only changed properties. I was managed to do it for the root type, but it contains references ... of the root entity. 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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1.0k views

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c# - How to return AggregateException from async method

I got an async method working like an enhanced Task.WhenAll. It takes a bunch of tasks and returns when all ... is just a minor inconvenience. See Question&Answers more detail:os...

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

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1.4k views

1 answer

c# - NAudio Asio Record and Playback

I'm trying to write my own VST Host and for that i need to record and play audio from an Asio Driver (in my ... to try it with Marshall.Copy.... 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

1 answer

c# - How to access a xml node with attributes and namespace using selectsinglenode()

I have this document where i want to get to the value in "x_server_response/retrieve_resources_by_category_response/ ... > <x_server_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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1.1k views

1 answer

c# - Autofac ResolvedParameter/ComponentContext not working

I am using asp.net core along with Entity Framework Core. My scenario here is, I want to change the connection ... here..but, not 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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1.3k views

1 answer

c# - Serialising an object to JSON, and then using that to send a query in elastic search using NEST

I get a bit confused and frustrated when it comes to using NEST to querying, as it seems very hit and miss ... be fantastic, cheers 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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1.2k views

1 answer

c# - How to get all images in the resources as list?

I have a WinForms project and added multiple images to the resources (project properties -> Resources). Now I ... as a Class Library. See Question&Answers more detail:os...

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

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