Tutorial by Examples: d

A DataGridView is a control in .NET UI design, which consists of rows and columns used to arrange data. Often there is need to depict data either from a spreadsheet or database on a UI design in an application. When this data is to be shown grouped by its properties, we choose a DataGridView. In C...

The file editor that ships with WordPress is a security risk. If an attacker gains admin access to your WordPress website they will be easily able to insert malicious code into theme and plugin files. It is also a risk with clients who don't know what they're doing. Once misplaced colon in the file ...

When you install WordPress to your server, the installation script will place a prefix in front of all the WordPress MySQL table names. This prefix is set to 'wp_' by default. The WordPress posts table will be called wp_posts for example. By changing the table prefix you can create some security by ...

In above examples you understand how to localize resources of application. Following example explain how to change the application locale within application, not from device. In order to change Application locale only, you can use below locale util. import android.app.Application; import android.c...

Background Theory: Bresenham’s Line Drawing Algorithm is an efficient and accurate raster line generating algorithm developed by Bresenham. It involves only integer calculation so it is accurate and fast. It can also be extended to display circles another curves. In Bresenham line drawing algorith...

To draw a cuboid, you have to use the box() function by giving its dimensions as its parameters. size(200, 200, P3D); //Starting the P3D renderer translate(width/2, height/2); //Translating to the centre of the sketch rotateY(PI/4); //rotate so that... rotateX(PI/6); //... it will be easy to see...

You need to get some details from your OAuth provider of choice. We'll be looking at Google, but ASP.NET is also set up to allow out-the-box use of Twitter, Facebook and Microsoft (obviously). You'll want to go to the Google developer console (https://console.developers.google.com/) and create a pr...

Go to Providers > ApplicationOAuthProvider.cs and edit the ValidateClientRedirectUri function. This was a big gotcha to me, as if you don't do this there'll be a fantastically unhelpful error message. By default, this code will make any callbacks to your site invalid unless they're to the site's ...

The most important part of your RMD file is the YAML header. For writing an academic paper, I suggest to use PDF output, numbered sections and a table of content (toc). --- title: "Writing an academic paper in R" author: "Author" date: "Date" output: pdf_documen...

app.module.ts Add these into your app.module.ts file to use reactive forms import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { FormsModule, ReactiveFormsModule } from '@angular/forms'; import { AppComponent } from './app.comp...

Unary operators can be defined by prepending the operator with unary_. Unary operators are limited to unary_+, unary_-, unary_! and unary_~: class Matrix(rows: Int, cols: Int, val data: Seq[Seq[Int]]){ def +(that: Matrix) = { val newData = for (r <- 0 until rows) yield for (c <...

theano.map and theano.scan_module.reduce are wrappers of theano_scan. They can be seen as handicapped version of scan. You can view Basic scan usage section for reference. import theano import theano.tensor as T s_x = T.ivector() s_sqr, _ = theano.map( fn = lambda x:x*x, sequences = [s...

This example will list the preferred resolution for all the connected monitors. The Code: On Error Resume Next strComputer = "." strQuery = "SELECT PreferredMonitorSourceModeIndex, MonitorSourceModes " & _ "FROM WmiMonitorListedSupportedSourceModes" ...

location = /favicon.ico { log_not_found off; access_log off; } location = /robots.txt { allow all; log_not_found off; access_log off; }

Sometimes, one wants strings like "resume" and "résumé" to compare equal. That is, graphemes that share a basic glyph, but possibly differ because of additions to those basic glyphs. Such comparison can be accomplished by stripping diacritical marks. equals_ignore_mark(s, t) =...

There are three equality operators: ==, ===, and isequal. (The last is not really an operator, but it is a function and all operators are functions.) When to use == == is value equality. It returns true when two objects represent, in their present state, the same value. For instance, it is obviou...

Let me write a piece of code which shows completely loosely coupled, Then you can easily understand how Spring core manage the dependency internally. Consider an scenario, Online business Flipkart is there, it uses some times DTDC or Blue Dart courier service , So let me design a application which ...

using System; using System.IO; using System.Security.Cryptography; namespace Aes_Example { class AesExample { public static void Main() { try { string original = "Here is some data to encrypt!"; ...

using System; using System.Security.Cryptography; using System.Text; public class PasswordDerivedBytesExample { public static void Main(String[] args) { // Get a password from the user. Console.WriteLine("Enter a password to produce a key:"); by...

(Note: There are many IDE, toolchain and library which are ready-to-use with STM32. The following setup requires minimal effort to get it work, but it is only one of the many. Feel free to explore others, it is not the purpose of this example to force anyone to use the tools that will be used here.)...