How to Clear() all elements from Entity Framework ICollection?

I have problems removing all elements from a collection in entity framework using Clear() Consider the often used example with Blogs and Posts. ``` public class Blog { public int Id {get; set;} ...

5 Oct at 08:2

How to validate Azure AD security token?

The following code gives me `Azure AD security token`, I need to validate that token is valid or not. How to achieve this? ``` // Get OAuth token using client credentials string tenantName = "mytest...

"React.Children.only expected to receive a single React element child" error when putting <Image> and <TouchableHighlight> in a <View>

I have the following render method in my React Native code: ``` render() { const {height, width} = Dimensions.get('window'); return ( <View style={styles.container}> <Image ...

Servicestack losing session, until cache clear, after pushing bin/js files

ServiceStack app using Angular (but issue occurs with just /auth as well *see below) Browsers where I definitely run into issue: Chrome, Safari Running into an issue where user is losing session imm...

4 Oct at 21:23

Windows Forms: Pass clicks through a partially transparent always-on-top window

I am designing a window that is always on screen and around 20% opaque. It is designed to be a sort of status window, so it is always on top, but I want people to be able to click through the window t...

12 Sep at 03:38

How to import a CSS file in a React Component

I want to import a CSS file into a react component. I've tried `import disabledLink from "../../../public/styles/disabledLink";` but I get the error below; > Module not found: Error: Cannot resolve ...

26 Jan at 16:55

How To make some text bold in cell using OpenXml

i have try to make bold the specific text using ``` Bold fbld = new Bold(); ``` but it will make bold hall cell. [](https://i.stack.imgur.com/d6yy5.jpg) Here in above image there is some bold tex...

29 May at 14:15

Min / Max Validator in Angular 2 Final

According to [thoughtgram.io](http://blog.thoughtram.io/angular/2016/03/14/custom-validators-in-angular-2.html), the currently supported validators are: - - - - So, considering the following code ([p...

cp: cannot create directory : No such file or directory

HiI am trying to copy a folder from a source to a destination but I am getting the following error: ``` cp: cannot create directory ‘/home/Workspace/Release/addons/’: No such file or directory ``` ...

20 Jun at 15:36

Autofit column in ClosedXML.Excel

I understand that the question stupid and from FAQ, but i cant set auto width in excel columns (using ClosedXML.Excel library) my code: ``` var wb = new XLWorkbook(); var wsDep = wb.Worksheets.Add("...

4 Oct at 08:1

Deserialize an Avro file with C#

I can't find a way to deserialize an Apache Avro file with C#. The Avro file is a file generated by the [Archive feature](https://azure.microsoft.com/en-us/documentation/articles/event-hubs-archive-ov...

4 Oct at 07:50

How to make a default value for the struct in C#?

I'm trying to make default value for my struct. For example default value for Int - 0, for DateTime - 1/1/0001 12:00:00 AM. As known we can't define parameterless constructor in structure. ``` struc...

22 Oct at 07:25

How to add the text "ON" and "OFF" to toggle button

On my project I wanted to add a text on my existing toggle code.So I wanted like this, When toggles ON it should display the text "ON" and display the "OFF" text if toggles off. I can't change it to o...

17 Jun at 15:2

C# 6 Auto Initialization Property and the use of backing fields

Prior to C# 6, the initialization of properties did not use backing fields to initialize default values. In C#6, it uses the backing fields to initialize with new [Auto initialization properties](http...

4 Oct at 11:21

How to add js and css files in ASP.net Core?

I've been assigned to migrate an application from MVC into ASP.net Core, I'm new to ASP.net Core. In MVC we have `BundleConfig.cs` and in there we add references to our css and js files, how does it w...

How do I pass a dependency to a Serilog Enricher?

I'm using Serilog in my application for logging. When I'm configuring the logger, I have code like this: ``` var log = new LoggerConfiguration() .Enrich.With<MySerilogEnricher>() .ReadAppSet...

3 Oct at 18:53

Fluent NHibernate - Dialect does not support DbType.Xml (SQLite)

I have a custom NHibernate XMLtype (Converts POCO to XML on the fly) so i can save objects in the DB. This works with SQL Server 2014 without any issues. However, when trying to run our unit tests wh...

Eager Loading using UserManager with EF Core

Currently have `ApplicationUser` class with some custom properties, like: ``` public class ApplicationUser : IdentityUser { public string Name { get; set; } public List<Content> Content { get...

SQL Server® 2016, 2017 and 2019 Express full download

All previous version of SQL Server Express were available in both web and full downloads. But I cannot find full download of SQL Server® 2016 Express. Does it exist? Asked the same question on MSDN f...

Displaying data in a SelectList in ASP.NET Core

I've tried a few different approaches. I'm not sure why but my SelectList/DropDown is empty. It shows no data. I'm not sure where I am going wrong. I have an ASP.NET Core App. Entity Framework Core. ...

OpenCV NoneType object has no attribute shape

Hello I'm working on Raspberry Pi with OpenCV. I want to try a tutorial which is ball tracking in link [http://www.pyimagesearch.com/2015/09/14/ball-tracking-with-opencv/](http://www.pyimagesearch.com...

3 Oct at 14:16

Cannot define variable in pipeline stage

I'm trying to create a declarative Jenkins pipeline script but having issues with simple variable declaration. Here is my script: ``` pipeline { agent none stages { stage("first") { ...

27 Oct at 20:16

pip not working in Python Installation in Windows 10

I downloaded and installed Python 3.5 from [https://www.python.org/downloads/](https://www.python.org/downloads/) on my Windows 10 machine with IDLE I want to install other packages using pip using ...

5 Jan at 04:3

ServiceStack session handling in a Load balanced environment

I am using ServiceStack as base library in one of my project. I have structured my application in two part API and WEB application which are separate project and repository. Authentication should h...

3 Oct at 14:6

How can I set a cookie in react?

Orginally, I use the following ajax to set cookie. ``` function setCookieAjax(){ $.ajax({ url: `${Web_Servlet}/setCookie`, contentType: 'application/x-www-form-urlencoded;charset=utf-8', ...

28 Sep at 18:57