Recent questions tagged C#

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c# - .NET Core - Could not load file or assembly

I'm trying to use a custom DLL (4.5 framework) in a aspnet core 1.1 app. I'm using Microsoft. ... from my aspnetcore app, without success. See Question&Answers more detail:os...

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

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855 views

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c# - Local variable 'mydate' might not be initialized before accessing

In my code i initilized Datetime like this DateTime myDate; But when i try to access it then i got this error. ... i initialized my date know ? See Question&Answers more detail:os...

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

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737 views

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c# - Best way to communicate between forms?

I almost never used (advanced, or at all) graphical interfaces, or one simple form with simple controls... but this ... 't know what it is yet. See Question&Answers more detail:os...

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

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534 views

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c# multipart/form-data submit programmatically

So got an small problem. Im creating an small application to automate an form submission on one website. But ... ); All suggestions are welcome See Question&Answers more detail:os...

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

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638 views

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c# - notify client from server

If I have an asp.net application, and I want to notify the user when something changes on the server, ... server from the silverlight client? See Question&Answers more detail:os...

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

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923 views

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c# - WPF DataGrid: How do you iterate in a DataGrid to get rows and columns?

How can you iterate in the rows and columns of a WPF DataGrid like with a Forms DataGridView in C#? For ... and update a database with 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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761 views

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c# - Fastest way to convert a BigInteger to a decimal (Base 10) string?

Answers So Far So here is the code breakdown. //Time: ~7s (linear loop algorithm) //100,000! (456,574 ... BuildString(remainder, m - 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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825 views

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c# - AdControl stops updating after navigating back in UWP

Hello I'm updating a MVVM Windows phone 8.1 app to UWP and have run into a problem. The adControl correctly ... to let the user navigate back. See Question&Answers more detail:os...

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

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655 views

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c# - Issue with binding to GridLayout to Android

I create game using technology Mono. While writing, I have a problem. I need create a grid (4 to 5) with ... Phone. There did not have problems. See Question&Answers more detail:os...

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

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874 views

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c# - What is the best way of removing rogue ampersands in XML?

(TLDR at the bottom) We have a legacy system that has implemented its own XML reader/writer. The ... unescaped ampersands in property values? See Question&Answers more detail:os...

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

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525 views

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c# - InvalidOperationException - When ending editing a cell & moving to another cell

I made a program in which I wanted to manually update the Data Grid View. -I have a Method to Refresh the ... Refresh_dataGridView1(); } } } } See Question&Answers more detail:os...

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

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756 views

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c# - How to map inherited entities in EF code-first

I'm trying to map the AdventureWorks 2012 sample database to an EF 6.1.3 code-first data layer, and ... Person to derive from BusinessEntity. See Question&Answers more detail:os...

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

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818 views

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c# - iTextSharp is producing a corrupt PDF with Response

i tryed both, but still not working iTextSharp + FileStream = Corrupt PDF file iTextSharp is producing a corrupt PDF ... } What im 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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870 views

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c# - detect keypression when minimized and trayicon

For my test I've created a little program in C# to detect key presses with this code: protected override void ... i didn't detect key presses. See Question&Answers more detail:os...

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

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703 views

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c# - How to get a filename from a path?

I need some Regular expression experts for an extra hand. :) I have different paths,different folders,different ... " with regular expressions? See Question&Answers more detail:os...

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

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961 views

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c# - NSubstitute vs PRISM EventAggregator: Assert that calling a method triggers event with correct payload

Consider the below method that updates a person and publishes an event through the PRISM EventAggregator to indicate ... to check its payload. See Question&Answers more detail:os...

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

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615 views

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c# - Upload Images while creating new Model

I'm going to create profile for my users in ASP.Net MVC application. Users creation controller is something like ... ("~/bundles/jqueryval") } See Question&Answers more detail:os...

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

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679 views

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c# - Referencing standard dlls from a .NET Core XUnit project

I am using the latest version of XUnit and I followed these steps to get the Class Library (.NET Core) project ... of how I can 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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732 views

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c# - Implementing playlists with songs from phone storage [windows phone]

I have been struggling with an issue with my media player windows phone (7) application. The problem is that I can't ... a way to make it go. See Question&Answers more detail:os...

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

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660 views

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c# - How do you use the MySql IN clause

I am trying to figure out how to use the MySql In cluse with ASP.NET C#. Here is my code var WebSites = string.Join( ... (p); } return pl; } } } 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# - multi-threading and lambda variable scope

I am using a class that manages a pool of threads to run actions. Originally it was coded to take an Action ( ... to the problem in my 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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877 views

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c# - How to style ComboBox Background on Mouse Hover?

I have a Rounded Border that contains a ComboBox <Border CornerRadius="10" BorderBrush...> <ComboBox Background="{x ... what's going wrong 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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776 views

1 answer

c# - restore SQL 2008 DB R2 to SQL2008 (no r2)

on my developper pc is installed SQL 2008 R2 on the internal server is installed SQL 2008 R2 (some applications ... server... please advice? 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# - Xamarin.Forms.Platform.Android does not exist after Xamarin update from 2.5 to 3.5

I have updated my projects Xamarin.Forms NuGet package from version 2.5 to 3.5. After this update ... solution Reinstalling Xamarin Forms NuGet See Question&Answers more detail:os...

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

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654 views

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c# - Dependency Injection

We are builing a windows desktop application (not web based) and trying to come up with the best way ... achieve decoupling in this situation See Question&Answers more detail:os...

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

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930 views

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c# - EFCore Not recognizing Database Provider

I have a .Net Core WebApplication Project in which the Context Class is in a Class Library. If I hard ... >() .AddDefaultTokenProviders(); } See Question&Answers more detail:os...

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

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831 views

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c# - Disable authentication on subfolder(s) of an ASP.NET app using windows authentication

Is it possible to disable windows authentication on one or more subfolders of an ASP.net application using windows ... using IIS7 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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780 views

1 answer

c# - How to enable a timer from a different thread/class

Original post: How to access a timer from another class in C# I tried everything. -Event -Invoke can't be ... the timer(delay,enable/disable)? See Question&Answers more detail:os...

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

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