Tutorial by Examples: ed

Using yield break as opposed to break might not be as obvious as one may think. There are lot of bad examples on the Internet where the usage of the two is interchangeable and doesn't really demonstrate the difference. The confusing part is that both of the keywords (or key phrases) make sense only...

Now open the document using OpenXML, you must add an imagePart that references the picture object to the MainDocumentPart object by using a file stream, and get the ID of the image string temp; MainDocumentPart mainPart = document.MainDocumentPart; ImagePart ima...

Now you have a reference of the image. Insert the image into the shapes in the template document. To do this, you will have to use some LINQ to iterate through the document and get a reference to all the shapes in the document. The wps:spPr element you see in the above XML code is the xml element fo...

Taking the previous example, removing the x:Key element of the style applies the style to all buttons in the Application scope. <Style TargetType="{x:Type Button}"> <Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisual}"/> ...

Having lots of styles in App.xaml will quickly become complex, so they can be placed in separate resource dictionaries. In order to use the dictionary, it must be merged with App.xaml. So, in App.xaml, after the resource dictionary has been created: <Application xmlns="http://s...

The following Window has been created: <Window x:Class="WPF_Style_Example.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/e...

In a Searched Case statement, each option can test one or more values independently. The code below is an example of a searched case statement: DECLARE @FirstName varchar(30) = 'John' DECLARE @LastName varchar(30) = 'Smith' SELECT CASE WHEN LEFT(@FirstName, 1) IN ('a','e','i','o','u') ...

A generic new() constructor that takes the string name of the desired algorithm as its first parameter also exists to allow access to the above listed hashes as well as any other algorithms that your OpenSSL library may offer. The named constructors are much faster than new() and should be preferred...

Unquoted identifiers can use letters (a-z), digits (0-9), and underscore (_), and must start with a letter. Depending on SQL implementation, and/or database settings, other characters may be allowed, some even as the first character, e.g. MS SQL: @, $, #, and other Unicode letters (source) MySQ...

Here is an example of a test using Pax Exam. package com.example.project.test; import static org.junit.Assert.*; import static org.ops4j.pax.exam.CoreOptions.*; import javax.inject.Inject; import org.junit.Test; import org.junit.runner.RunWith; import org.ops4j.pax.exam.Configuration;...

You made a great app and tested it in Debug, with good results. Everything was working fine! But then, you decided to prepare your app for release. You set up MultiDex, ProGuard and Linker, and then, it stopped working. This tutorial aims to help you to find out common problems related to ProGuard...

/// <summary> /// Post Method with Input/ data to post in JSON format /// </summary> /// <returns> Json formated data </returns> public string GetJsonData3() { IOperations _Obj = ClsOperations.GetOperations(); string url = "htt...

First, why do we need lxml ? lxml.etree is a generic API for XML and HTML handling. It aims for ElementTree compatibility and supports the entire XML infoset. It is well suited for both mixed content and data centric XML. Its generality makes it the best choice for most applications. The lxml libr...

There is a container view S which width is 100 and height is wrap to all subviews height. there are four subviews A,B,C,D arranged from top to bottom. Subview A's left margin is 20% width of S, right margin is 30% width of S, height is equal to width of A. Subview B's left margin is 40, width...

Midnight Commander has a built in editor which is started by F4 function key when over the desired file in the browse mode. It can also be invoked in standalone mode by executing mcedit <filename> Here is a list of actions which can be triggered in the edit mode. F1 Displays help F2 Saves ...

This subroutine is a quick example on how to allow a user to select multiple files and then do something with those file paths, such as get the file names and send it to the console via debug.print. Option Explicit Sub OpenMultipleFiles() Dim fd As FileDialog Dim fileChosen As Integer ...

You can mount remote directory through ssh by using sshfs. Sshfs does not come as a default on Ubuntu, so you need to install it first by using sudo apt-get install sshfs. You can then mount the remote directory to your local machine like this sshfs [email protected]:/remotedir /localdir Not...

The protected scope allows the value to be accessed from any subclasses of the current class. class FooClass { protected val x = "foo" } class BarClass extends FooClass { val y = x // It is a subclass instance, will compile } class ClassB { val f = new FooClass f.x // <...

The package protected scope allows the value to be accessed only from any subclass in a specific package. package com.example { class FooClass { protected[example] val x = "foo" } class ClassB extends FooClass { val y = x // It's in the protected scope, will compile ...

You may also extend nested selectors. The below Less .otherChild{ color: blue; } .otherParent{ color: red; .otherChild{ font-size: 12px; color: green; } } .parent{ .nestedParagraph{ &:extend(.otherParent .otherChild); } } Will compile to .otherChild...