Recent questions tagged C#

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I am unable to cast a generic type to another generic type, besides the cast should be valid What I want to ... kind of cast is not possible? See Question&Answers more detail:os...

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

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306 views

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c# - Coroutine wrong Behavior when scene is loaded

Ok so I have this coroutine : IEnumerator ShowCharTraits() { while(!hasPlayerChosen) { yield return null; traitPanel ... why this is happening ? See Question&Answers more detail:os...

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

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277 views

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c# - ASP.NET 5 / MVC 6 Console Hosted App

In MVC5, I had a console application that would use Microsoft.Owin.Hosting.WebApp.Start(...) to host ... keep this initialization architecture? See Question&Answers more detail:os...

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

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218 views

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c# - Share variable between multiple classes

If i have 3 classes, lets say: Mainclass, ChildClass, OtherChild. MainClass() { ChildClass cc = new ChildClass(); ... is the solution for 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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314 views

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c# - Load AR-model through button tap in Android

I have made a basic AR-app using Unity & Vuforia and exported it to Android, so I can add some ... asked/answered. 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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252 views

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c# - asp.net adding class to current menuItem

I am new the asp.net so i will appreciate a full code answer. I have a web site in asp.net and c# i ... example for this? Thank you 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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311 views

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c# - WCF client hangs on response

I have a WCF client (running on Win7) pointing to a WebSphere service. All is good from a test harness (a ... a possible cause. What's left? See Question&Answers more detail:os...

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

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310 views

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c# - HtmlAgilityPack WebGet.Load gives error "Object reference not set to an instance of an object"

I am on a project about getting new car prices from dealers websites. I can fetch most web sites html. But ... this url document is not loaded. See Question&Answers more detail:os...

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

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455 views

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c# - ContinueWith loses the SynchronizationContext

In the snippet below, the SynchronizationContext is lost, and because of that also the CurrentCulture and CurrentUICulture ... with my code? See Question&Answers more detail:os...

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

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395 views

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c# - SqlDependency doesn't fire OnChange event when dataset is changed

I'm new to the concept of query notifications with SQL Server and it's going to take some time for me ... anyone help me understand the process? See Question&Answers more detail:os...

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

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766 views

1 answer

c# - How to change color of selected item in ListBox?

I have a ListBox control with some items and I want to change color of selected item... How can I do it in C# (WinForms)? Help me please :) See Question&Answers more detail:os...

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

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395 views

1 answer

c# - Extension of Binary search algo to find the first and last index of the key value to be searched in an array

The problem is to extend the binary search algorithm to find all occurrences of a target value in a sorted array ... need to find the indexes? 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# - How to drag a DataPoint and move it in a Chart control

I want to be able to grab a datapoint drawn in a chart and to move it and change its position by dragging it ... to do it in normal MS chart. See Question&Answers more detail:os...

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

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567 views

1 answer

c# - Combining consecutive dates into ranges

I have a List of objects public class sample { public DateTime Date; public string content; } I want to be able to ... ,"10/20/2013", "y"} See Question&Answers more detail:os...

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

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421 views

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c# - Setting DateTime as a SqlDataSource parameter for Gridview

Hey I would like to display certain data with my stored procedure for the last 30 days. here is what I have done ... ) and no errors. 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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308 views

1 answer

c# - access to full resolution pictures from camera with MonoDroid

I'm trying to find a way to access full resolution pictures from MonoDroid, after a long time of attempting to ... of the picture i just shot? See Question&Answers more detail:os...

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

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385 views

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c# - VSTO Word post save event

Sorry for the length of this, In the past I've been asked before to included everything I've tried when ... . Can anyone offer a solution? See Question&Answers more detail:os...

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

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538 views

1 answer

c# - Crystal reports, why is it asking for database login even after I provided the details?

I am generating a report, but the problem is even though I've supplied credentials, when the form containing the ... asking me for a login? See Question&Answers more detail:os...

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

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483 views

1 answer

c# - Generate columns dynamically in RDLC

I am trying to generate a RDLC report in ASP.NET where the columns of my Dataset will be dynamic and ... database results. 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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523 views

1 answer

c# - The model item passed into the dictionary is of type 'System.Data.Entity.Infrastructure.DbQuery', but this dictionary requires a model item of type B

I been stuck in a situation and I tried finding the solution for it on net but was not successful. I am ... two unrelated tables in my model. See Question&Answers more detail:os...

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

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402 views

1 answer

c# - Folder Icon Change

I am changing the folder icons with c# function. Its working fine but the problem is its working for first time. ... } What could be the reason? 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

1 answer

c# - When do I need a Domain Name and a Domain Container to create a PrincipalContext?

I'm developing a C# .NET Framework library to access active directory. One of the things that I have to do ... Name and a Domain Container? See Question&Answers more detail:os...

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

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388 views

1 answer

c# - How do I build a splash screen into a Windows Forms application without setting timers etc?

I want to show a splash screen while my application's main form is loading and the splash form should ... that will kill the application. See Question&Answers more detail:os...

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

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1.5k views

1 answer

c# - How to cancel and raise an exception on Task.WhenAll if any exception is raised?

I am waiting on multiples task using Task.WhenAll. When one of them generates an exception I would like Task. ... it possible? 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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380 views

1 answer

c# - How to select multiple controls by mouse-dragging over them

I want to be able to drag over a bunch of controls and select those of a certain type (TextBoxes). Once ... () or breakpoint occurs before 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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345 views

1 answer

c# - IP routing table lookup in .net

I have a multi-homed machine and need to answer this question: Given an IP address of the remote machine, which ... found an equivalent for 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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404 views

1 answer

c# - How to export SQL Database directly to blob storage programmatically

I need to programmatically backup/export a SQL Database (either in Azure, or a compatible-one on-prem) to Azure ... a better way to 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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540 views

1 answer

c# - ASP.NET Core 404 Error When Published to IIS 7.5

I'm using Visual Studio 2015 to publish my ASP.NET Core app to IIS 7.5. All I'm trying to do is ... it starts getting funky. 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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