Tutorial by Examples: not

On Windows Phone something like the code underneath needs to be implemented to start working with push notifications. This can be found in the App.xaml.cs file. protected async override void OnLaunched(LaunchActivatedEventArgs e) { var channel = await PushNotificationChannelManager.CreatePush...

The fact that the garbage collection will clean up does not mean that you should wait for the garbage collection cycle to clean up. In particular you should not wait for garbage collection to close file handles, database connections and open network connections. for example: In the following code...

To unregister from Remote Notifications programatically you can use Objective-C [[UIApplication sharedApplication] unregisterForRemoteNotifications]; Swift UIApplication.sharedApplication().unregisterForRemoteNotifications() this is similar to going into the setting of your phone and manual...

Darken #demo { @refcolor: #f0b9b8; background: @refcolor; border: 1px solid darken(@refcolor, 25%); } The above code makes use of the darken() function to set the border color as a shade that is 25% darker than the reference color (which is also the background color). Less compiler ca...

Make sure that include unit test case box is checked when creating a new project as shown below:

Since null is not a value, you can't use comparison operators with nulls. To check if a column or variable holds null, you need to use is null: DECLARE @Date date = '2016-08-03' The following statement will select the value 6, since all comparisons with null values evaluates to false or unknown...

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...

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.

In Normal Mode, commands can be entered by direct key combinations (typing u to undo the last change, for example). These commands often have equivalents in 'ex' mode, accessed by typing a colon :, which drops you into a single-line buffer at the bottom of the Vim window. In 'ex' mode, after typing...

If you need to copy a database from one server to another, you have two options: Option 1: Store the dump file in the source server Copy the dump file to your destination server Load the dump file into your destination server On the source server: mysqldump [options] > dump.sql On th...

A. The syntax is presented above. The following selector matches all <input> elements in an HTML document that are not disabled and don't have the class .example: HTML: <form> Phone: <input type="tel" class="example"> E-mail: <input type="em...

The methods object.wait(), object.notify() and object.notifyAll() are meant to be used in a very specific way. (see http://stackoverflow.com/documentation/java/5409/wait-notify#t=20160811161648303307 ) The "Lost Notification" problem One common beginner mistake is to unconditionally cal...

Examples of what happens when NULL and 'bad-value' are stored into nullable and not nullable columns. Also shows usage of casting to numeric via +0. CREATE TABLE enum ( e ENUM('yes', 'no') NOT NULL, enull ENUM('x', 'y', 'z') NULL ); INSERT INTO enum (e, enull) VA...

The CLOS MOP provides the hook slot-value-using-class, that is called when a slot is value is accessed, read or modified. Because we only care for modifications in this case we define a method for (setf slot-value-using-class). (defclass document () ((id :reader id :documentation "A hash co...

Alternate ways to install SymPy from conda. conda is the recommended way, but these are some alternate ways. Including: git, pip, etc.

MarkLogic is first and foremost a search engine, so let's use two different methods to search for this document. Using search:search() This gives a peek into using search:search() to develop search applications. This library provides Google-like search results and will likely speed up your develop...

To round out simple examples of CRUD operations, we present the following examples. Always use great care in deleting documents. (: When we know the URI, we can delete it very easily :) let $uri := "/stuff/mysimpledocument.xml" return xdmp:document-delete($uri) or simplified: xdmp:d...

Implementation of IDatabaseInitializer that is used in EntityFramework by default. As the name implies, it creates the database if none exists. However when you change the model, it throws an exception. Usage: public class MyContext : DbContext { public MyContext() { Database.SetIni...

project('projectA') { task A(dependsOn: ':projectB:B') << { println 'Hello from A' } } project('projectB') { task B << { println 'Hello from B' } } To refer to a task in another project, you prefix the name of the task with the path of the pr...

Custom sounds may be provided for notifications generated by your app. When the system displays an alert for a local notification or badges an app icon, it plays this sound (so long as the user has not disabled notification sounds). The default value is nil which means no sound is played for your n...