Tutorial by Examples: ect

Since an enum can be cast to and from its underlying integral type, the value may fall outside the range of values given in the definition of the enum type. Although the below enum type DaysOfWeek only has 7 defined values, it can still hold any int value. public enum DaysOfWeek { Monday = 1...

Information about the database connections SELECT a.mon$attachment_id as Attachment_ID, a.mon$server_pid as Server_PID, case a.mon$state when 1 then 'active' when 0 then 'idle' end as State, a.mon$attachment_name as Database_Name, ...

Print out all list names and the item count. $site = Get-SPSite -Identity https://mysharepointsite/sites/test foreach ($web in $site.AllWebs) { foreach ($list in $web.Lists) { # Prints list title and item count Write-Output "$($list.Title), Items: $($list.ItemCoun...

Get-SPFeature -Site https://mysharepointsite/sites/test Get-SPFeature can also be run on web scope (-Web <WebUrl>), farm scope (-Farm) and web application scope (-WebApplication <WebAppUrl>). Get all orphaned features on a site collection Another usage of Get-SPFeature can be to find ...

To view an browse Vaadin add-ons in the Directory, you must be registered to vaadin.com. After the initial discovery of artifact details, e.g. for download and usage, registration is not required. Also, the usage of add-ons in a Maven project is not IDE-specific and the same instructions apply. Fro...

The & operator is the parent selector. When used in or as a selector, it is replaced with the full parent selectors (entire sequence of selectors right upto to the topmost level of a nested block) in the final CSS output. It is useful when creating nested rules that require using the parent sel...

Less allows the usage of the parent selector (&) anywhere in a complex selector and thus allows changing styles when the current element is within another element which gives it a different context: For example, in the below code the parent selector is placed at the end and thus it actually be...

var a = new List<int> { 1, 2 }; var b = new List<int> { 2, 1 }; Assert.That (a, Is.EqualTo(b)); // fails Assert.That (a, Is.EquivalentTo(b)); // succeeds

To connect to your DocumentDB database you will need to create a DocumentClient with your Endpoint URI and the Service Key (you can get both from the portal). First of all, you will need the following using clauses: using System; using Microsoft.Azure.Documents.Client; Then you can create the ...

A collection can be created by using the CreateDocumentCollectionAsync method of the DocumentClient class. A collection is a container of JSON documents and associated JavaScript application logic. async Task CreateCollection(DocumentClient client) { var databaseName = "<your database...

Set up some constants for the server and authentication information. Assuming LDAPv3, but it's easy enough to change that. // Authentication, and the name of the server. private const string LDAPUser = "cn=example:app:mygroup:accts,ou=Applications,dc=example,dc=com"; private readonly ch...

GC (Garbage Collector) is responsible for cleaning our garbage. While GC cleans our garbage, he removes the unused objects from the managed heap which cause heap fragmentation. When GC is done with the removal, it performs a heap compression (defragmintation) which involves moving objects on the he...

You can select the last day of month. SELECT (date_trunc('MONTH', ('201608'||'01')::date) + INTERVAL '1 MONTH - 1 day')::DATE; 201608 is replaceable with a variable.

Any attempt to modify a const object results in undefined behavior. This applies to const variables, members of const objects, and class members declared const. (However, a mutable member of a const object is not const.) Such an attempt can be made through const_cast: const int x = 123; const_cas...

This is the image of project structure in Android studio: This is the image of project structure of nativescript project: As you see they are same. so we can write java code in nativescript as we write in android studio. We want to Add Toast to the default app of nativescript. after creating...

We want to add Toast to nativescript default app. import {Component} from "@angular/core"; let application = require("application"); declare var android:any; @Component({ selector: "my-app", templateUrl: "app.component.html", }) export clas...

A "Connection Refused" error will occur if your client sends a connection request to a remote server host, and the remote host responds to say that it refuses to accept the request. The "Connection Refused" error essentially means that the computer is not accepting connections to...

A "Connection timed out" error occurs when the remote system does not respond to the client's attempt to open a TCP/IP connection. The most common causes include: A firewall is blocking the connection attempt on the port that you are using: The firewall could be on the client-side, ...

It is convenient to set custom conditional preprocessing at project level when some actions need to be skipped lets say for tests. Go to Solution Explorer -> Click Right Mouse on project you want to set variable to -> Properties -> Build -> In General find field Conditional compilation ...

Check for a Firewall issue blocking port 3306. Some possible diagnostics and/or solutions Is the server actually running? "service firewalld stop" and "systemctl disable firewalld" telnet master 3306 Check the bind-address check skip-name-resolve check the socket.