ngModel for textarea not working in angular 2

I am trying to print json object in textarea using `ngModel`. I have done following: ``` <textarea style="background-color:black;color:white;" [(ngModel)]='rapidPage' rows="30" cols="120"> ...

16 Mar at 19:52

How do I find and replace all occurrences (in all files) in Visual Studio Code?

I can't figure out how to find and replace all occurrences of a word in different files using Visual Studio Code version 1.0. I get the impression this should be possible since doing Ctrl + Shift + F...

10 Jul at 10:32

Hosting ASP.NET Core as Windows service

As I get it in RC2 there's a support for hosting applications within Windows Services. I tried to test it on a simple web api project (using .NET Framework 4.6.1). Here's my Program.cs code: ``` usi...

Retrieving new Firebase access token for REST services in .NET from Google auth service

After a change of firebase authorization system, I'm trying to retrieve access token in c# from google auth server. According to new documentation: [https://firebase.google.com/docs/reference/rest/da...

How to get float value with SqlDataReader?

In my database, I have NextStatDistanceTime value as a float. When "`float time = reader.GetFloat(0);`" line excecuted, it gives an error of > system invalid cast exception How can I get float value...

20 May at 10:28

How to use FromQuery Attribute get a complex object?

How to use FromQueryAttribute get a complex object? ``` [HttpGet] public IActionResult Get([FromQuery] DataGridRequest request) { ... } ``` The DataGridRequest class like this: ``` public clas...

20 May at 13:17

Find a KeyValuePair inside a List

Suppose I have ``` List<KeyValuePair<int, string>> d ``` I know the string but I want to find its integer. How do I find the keyvaluepair inside this List?

20 May at 09:26

VSCode "go to definition" not working

I installed Visual Studio Code 1.1 with the C/C++ extension, opened my C++ project and tried to use "Go to definition" in vain. The "Go to definition" is not working at all. Example, go to definition...

23 Aug at 20:16

Get DB DataType ServiceStack Ormlite

Is there a way from a POCO class to get the actual DB Data Type of the various properties? For Example: Let's assume the POCO class ``` public class Product : IHasId<int> { [Alias("id")] [Re...

23 May at 14:41

Test Environment.Exit() in C#

Is there in C# some kind of equivalent of [`ExpectedSystemExit`][1] in Java? I have an exit in my code and would really like to be able to test it. The only thing I found in C# is a not really nice [w...

Linq Sum with group by

I am having a table structure with columns FeesNormal FeesCustom Currency Now i am looking for a SUM function group by currency . For example 20 USD + 30 EURO + 40 INR something like this fr...

20 May at 05:57

Which one is faster? Regex or EndsWith?

What would be faster? ``` public String Roll() { Random rnd = new Random(); int roll = rnd.Next(1, 100000); if (Regex.IsMatch(roll.ToString(), @"(.)\1{1,}$")) { return "double...

12 Jun at 21:45

Where can I find the API KEY for Firebase Cloud Messaging?

I am trying to figure out how the new version of GCM or Firebase Cloud Messaging works so I moved one of my projects to the new Firebase console, If I did not have the API KEY or I want to create a ne...

React.js: Set innerHTML vs dangerouslySetInnerHTML

Is there any "behind the scenes" difference from setting an element's innerHTML vs setting the dangerouslySetInnerHTML property on an element? Assume I'm properly sanitizing things for the sake of sim...

24 Aug at 07:45

Throw "IDX10223: Lifetime validation failed. The token is expired." when working Azure AD with Microsoft.Owin.Security.OpenIdConnect

I'm integrating the "Microsoft Azure AD" to our Asp.NET web projects, all works fine following the guide shown at [https://azure.microsoft.com/en-us/documentation/articles/active-directory-devquicksta...

Can you mark XUnit tests as Explicit?

I'm making the transition from NUnit to XUnit (in C#), and I was writing some "Integrated Tests" (ITs) that I don't necessarily want the test runner to run as part of my automated build process. I typ...

How to delete an element from a Slice in Golang

``` fmt.Println("Enter position to delete::") fmt.Scanln(&pos) new_arr := make([]int, (len(arr) - 1)) k := 0 for i := 0; i < (len(arr) - 1); { if i != pos { new_arr[i] = arr[k] k+...

5 May at 06:32

How do you add a file as a link in a .NET Core library?

I've added a .NET Core RC2 class lib to my solution (for fun) and the first thing I usually do is add a link to a shared `GlobalAssemblyInfo.cs` and edit the existing `AssemblyInfo.cs` down to the ass...

Splitting a pandas dataframe column by delimiter

i have a small sample data: ``` import pandas as pd df = {'ID': [3009, 129, 119, 120, 121, 122, 130, 3014, 266, 849, 174, 844], 'V': ['IGHV7-B*01', 'IGHV7-B*01', 'IGHV6-A*01', 'GHV6-A*01', 'IGHV6-A...

19 Feb at 14:40

Concatenate two PySpark dataframes

I'm trying to concatenate two PySpark dataframes with some columns that are only on one of them: ``` from pyspark.sql.functions import randn, rand df_1 = sqlContext.range(0, 10) +--+ |id| +--+ | 0| ...

how to setup ssh keys for jenkins to publish via ssh

Jenkins requires a certificate to use the publication and commands. It can be configured under `"manage jenkins" -> "Configure System"-> "publish over ssh"`. The question is: How does one create th...

5 Jul at 14:49

Working with DirectoryServices in ASP.NET Core

I am upgrading my ASP.NET Core RC1 application to RC2. I have some references to `System.DirectoryServices` and `System.DirectoryServices.AccountManagement` in some *.cs files so that I can query LDAP...

How to list indexes created for table in postgres

Could you tell me how to check what indexes are created for some table in postgresql ?

2 Jul at 17:7

How to use IHttpContextAccessor in static class to set cookies

I am trying to create a generic `addReplaceCookie` method in a static class. The method would look something like this ``` public static void addReplaceCookie(string cookieName, string cookieValue) {...

ServiceStack - As passthru to another ServiceStack service

I currently have an ServiceStack Service that does nothing but relay requests to an internal ServiceStack service. The relay service is setup something like this (code made brief as an example): ```...

19 May at 16:27