Tutorial by Examples: id

The below example widget demonstrates how to format individual cells of a TreeView column conditionally, depending on value of the field in the particular cell. If value of field is negative, then it'll be displayed in red color and minus symbol will be hidden, otherwise it'll be displayed in normal...

There is no direct equivalent binding in KnockoutJS. However, since hiding is just the opposite of showing, we can just invert the example for Knockout's ngShow equivalent. <p ng-hide="SomeScopeProperty">This is conditionally shown.</p> KnockoutJS equivalent: <p data-bi...

build.gradle repositories { maven { url 'http://4thline.org/m2' } } dependencies { // Cling compile 'org.fourthline.cling:cling-support:2.1.0' //Other dependencies required by Cling compile 'org.eclipse.jetty:jetty-server:8.1.18.v20150929' compile 'org.eclipse.jetty:jetty-servlet:8....

// Mixin to generate hidden classes @mixin generate-hidden-classes { @each $bp in map-keys($grid-breakpoints) { .hidden-#{$bp} { @include media-breakpoint-only($bp) { display: none !important; } } } } // Call to the mixin @include generate-hidden-classes(...

Complete the Installation and setup to connect your app to Firebase. This will create the project in Firebase. Add the dependency for Firebase Realtime Database to your module-level build.gradle file: compile 'com.google.firebase:firebase-database:9.2.1' Configure Firebase Databa...

Android ButterKnife Zelezny Plugin for generating ButterKnife injections from selected layout XMLs in activities/fragments/adapters. Note : Make sure that you make the right click for your_xml_layou(R.layout.your_xml_layou) else the Generate menu will not contain Butterknife injector option. ...

// 1. Instantiate the player. player = ExoPlayer.Factory.newInstance(RENDERER_COUNT); // 2. Construct renderers. MediaCodecVideoTrackRenderer videoRenderer = ... MediaCodecAudioTrackRenderer audioRenderer = ... // 3. Inject the renderers through prepare. player.prepare(videoRenderer, audioRend...

If a particular header file is included more than once in a translation unit (TU), there should not be any compilation problems. This is termed 'idempotence'; your headers should be idempotent. Think how difficult life would be if you had to ensure that #include <stdio.h> was only included ...

Firstly, we set node category let groundBody: UInt32 = 0x1 << 0 let boxBody: UInt32 = 0x1 << 1 Then add Ground type node and Box type node. let ground = SKSpriteNode(color: UIColor.cyanColor(), size: CGSizeMake(self.frame.width, 50)) ground.position = CGPointMake(CGRectGetMidX(sel...

If different users need different datetime format then you may need to parse your incoming date string to actual date according to the format. In this case this snippet may help you. public class DateTimeBinder : DefaultModelBinder { public override object BindModel(ControllerContext control...

Any middleware registered as routeMiddleware in app/Http/Kernel.php can be assigned to a route. There are a few different ways to assign middleware, but they all do the same. Route::get('/admin', 'AdminController@index')->middleware('auth', 'admin'); Route::get('admin/profile', ['using' => ...

A layout containing views arranged in rows and columns. This is a typical Grid definition in XAML. <Grid> <Grid.RowDefinitions> <RowDefinition Height="2*" /> <RowDefinition Height="*" /> <RowDefinition Height="200" /> ...

Angular 2 has two kinds of custom validators. Synchronous validators as in the first example that will run directly on the client and asynchronous validators (the second example) that you can use to call a remote service to do the validation for you. In this example the validator should call the ser...

constructor(fb: FormBuilder) { this.form = fb.group({ firstInput: ['', Validators.compose([Validators.required, CustomValidators.cannotContainSpace]), CustomValidators.shouldBeUnique], secondInput: ['', Validators.required] }); } Here we use the FormBuilder to crea...

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By default, WordPress does not support shortcodes within Sidebar Widgets. It only expands the shortcodes within the content of a Post, Page, or custom post type. To add shortcode support to sidebar widgets, you can install a plugin, or use the below code: add_filter( 'widget_text', 'shortcode_unaut...

When it comes to validate some rules which are not generic data validation e.g ensuring a field is required or some range of values but they are specific to your business logic then you can create your own Custom Validator. To create a custom validation attribute, you just need to inherit Validation...

In your functions.php you can register new sidebars with this code /** * Registers sidebars * * @param array Array with default or specified array values * @since 1.0.0 */ if ( function_exists( 'register_sidebar' ) ) { register_sidebar( array ( 'name' => e...

In Express, you can define middlewares that can be used for checking requests or setting some headers in response. app.use(function(req, res, next){ }); // signature Example The following code adds user to the request object and pass the control to the next matching route. var express = req...

Middleware functions are functions that have access to the request object (req), the response object (res), and the next middleware function in the application’s request-response cycle. Middleware functions can execute any code, make changes to res and req objects, end response cycle and call next ...