Tutorial by Examples: id

The row heigths or column widths of multiple Grids can be synchronized by setting a common SharedSizeGroup on the rows or columns to synchronize. Then a parent control somewhere up in the tree above the Grids needs to have the attached property Grid.IsSharedSizeScope set to True. <StackPanel Gri...

If the built in attributes are not sufficient to validate your model data, then you can place your validation logic in a class derived from ValidationAttribute. In this example only odd numbers are valid values for a model member. Custom Validation Attribute public class OddNumberAttribute : Valid...

Prerequisites Java8 (1.8.0_91) Eclipse neon (JavaScript and Web Developer) Play Framework 2.5.4 Installing Scala in Eclipse Launch the Eclipse Open Help > Eclipse Marketplace Type Scala in Find Install Scala IDE Setup sbteclipse Open play project .\project\ plugins.sbt Add f...

onView(withId(R.id.pay))

Gridviews are more useful if we can update the view as per our need. Consider a view with a lock/unlock feature in each row. It can be done like: Add an update panel: <asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional"> </asp:UpdatePane...

package com.mcf7.spring.domain; import org.springframework.validation.Errors; import org.springframework.validation.Validator; public class BeforeCreateBookValidator implements Validator{ public boolean supports(Class<?> clazz) { return Book.class.equals(clazz); } ...

package com.mcf7.spring.config; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.Primary; import org.springframework.data.rest.core.event.ValidatingRepositoryEventListener; import org...

public class MyPage : ContentPage { RelativeLayout _layout; Label MiddleText; public MyPage() { _layout = new RelativeLayout(); MiddleText = new Label { Text = "Middle Text" }; MiddleText.SizeChanged += ...

The Java Language Specification describes Annotations as follows: An annotation is a marker which associates information with a program construct, but has no effect at run time. Annotations may appear before types or declarations. It is possible for them to appear in a place where they could a...

To easily link your Redux store to your React components you can use an additional library: react-redux. First, you need to wrap your app in a Provider, which is a component that passes your store to be used by child components: import { Provider } from 'react-redux'; /// ... store = createStor...

The showcase of Primefaces components you can find here and documentation is here Frontend needs to be saved as a XHTML file. This file can contain JSF, JSTL, JSP, HTML, CSS, jQuery, javaScript and its framework and more front-end technologies. Please, do not mix JSF and JSP technologies together....

Using a small transparent image called empty.png public class MyPage : ContentPage { public Page() { if (Device.OS == TargetPlatform.Android) NavigationPage.SetTitleIcon(this, "empty.png"); } }

IDs may be defined using a #idname syntax: Code: a#main-link Result: <a id="main-link"></a> Since div's are such a common choice of tag, it is the default if you omit the tag name: Code: #content Result: <div id="content"></div>

This is an example of Serial Document Middleware In this example, We will write a middleware that will convert the plain text password into a hashed password before saving it in database. This middleware will automatically kick in when creating new user or updating existing user details. FILENA...

The void generator class: public class VoidGenerator extends ChunkGenerator { @SuppressWarnings("deprecation") public byte[] generate(World w, Random rand, int x, int z) { byte[] result = new byte[32768]; //chunksized array filled with 0 - Air //Build a...

A frequent reason why your read operation may not work is because your security rules reject the operation, for example because you're not authenticated (by default a database can only be accessed by an authenticated user). You can see these security rule violations in the logcat output. But it's e...

Show how to use cv::VideoCapture. Here is the example of loading video from file: #include "opencv2/highgui/highgui.hpp" #include "opencv2/imgproc/imgproc.hpp" #include "opencv2/core/core.hpp" #include <iostream> using namespace cv; VideoCapture videoSourc...

Show how to use cv::VideoWriter. #include "opencv2/highgui/highgui.hpp" #include <iostream> using namespace cv; using namespace std; int main(int argc, char* argv[]) { VideoCapture cap(0); // open the video camera no. 0 if (!cap.isOpened()) // if not success, e...

Occasionally you will want to access the result of your filters from outside the ng-repeat, perhaps to indicate the number of items that have been filtered out. You can do this using as [variablename] syntax on the ng-repeat. <ul> <li ng-repeat="item in vm.listItems | filter:vm.myF...

The simplest manner of defining custom behavior for individual routes would be fairly easy. In this example we use it to authenticate a user : 1) routes.js: create a new property (like requireAuth) for any desired route angular.module('yourApp').config(['$routeProvider', function($routeProvider) ...