There are many responsive scenarios where it's necessary to have column units exceeding 12 in a single .row element. This is known as column wrapping.
If more than 12 columns are placed within a single row, each group of
extra columns will, as one unit, wrap onto a new line.
For example, cons...
Typically, you will want to create your SimpleJdbcCalls in a Service.
This example assumes your procedure has a single output parameter that is a cursor; you will need to adjust your declareParameters to match your procedure.
@Service
public class MyService() {
@Autowired
private DataSour...
There are a number of issues with Oracle. Here's how to resolve them.
Assuming your procedure output parameter is ref cursor, you will get this exception.
java.sql.SQLException: Invalid column type: 2012
So change Types.REF_CURSOR to OracleTypes.CURSOR in simpleJdbcCall.declareParameters()
...
You can create custom dialogs which contains many component and perform many functionality on it. It behaves like second stage on owner stage.
In the following example an application that shows person in the main stage tableview and creates a person in a dialog (AddingPersonDialog) prepared. GUIs c...
With a simple for loop, all zip archives in a directory can be extracted.
for (i in dir(pattern=".zip$"))
unzip(i)
The dir function produces a character vector of the names of the files in a directory matching the regex pattern specified by pattern. This vector is looped through w...
General Properties:
An Azimuthal Equidistant projection is best recognized when used in polar areas. It is used in the UN's emblem. From the center point, angle and distance are preserved. But the projection will distort shape and area to achieve this, especially as one moves further from the cente...
When a navigation property exist on a model, Entity Framework will automatically create a Foreign Key column. If a specific Foreign Key name is desired but is not contained as a property in the model, it can be set explicitly using the Fluent API. By utilizing the Map method while establishing the F...
You can print log message in the terminal using console.log(). To do so, open a new terminal and run following command for Android:
react-native log-android
or following command if you are using iOS:
react-native log-ios
You will now start to see all the log message in this terminal
Note in this example we will use PostgreSQL DBMS, but you can use any DBMS
We will use a database bd_test witch contain a Schema: sch_test and two tables users and test :
CREATE TABLE sch_test.users
(
id serial NOT NULL,
username character varying,
password character varying,
CONSTRAI...
BFS can be used to find the connected components of an undirected graph. We can also find if the given graph is connected or not. Our subsequent discussion assumes we are dealing with undirected graphs.The definition of a connected graph is:
A graph is connected if there is a path between every p...
Suppose we'd like to invoke the JavaScript function JSON.stringify which receives an object, encodes it into a JSON string and returns it.
All we'd have to do is write the function signature, mark it as external and annotate it with the @JS annotation:
@JS("JSON.stringify")
external St...
Suppose we'd like to wrap the Google Maps JavaScript API google.maps:
@JS('google.maps')
library maps;
import "package:js/js.dart";
@JS()
class Map {
external Map(Location location);
external Location getLocation();
}
We now have the Map Dart class which corresponds to t...
It's common practice in JavaScript to pass object literals to functions:
// JavaScript
printOptions({responsive: true});
Unfortunately we cannot pass Dart Map objects to JavaScript in these cases.
What we have to do is create a Dart object that represents the object literal and contains all of...
In this example, we use this database:
"your-project-name" : {
"users" : {
"randomUserId1" : {
"display-name" : "John Doe",
"gender" : "male"
}
"randomUserId2" :...
Note: You need to know which data referenced by getReference() first before you can completely understand this example.
There are three common method to get your data from Firebase Realtime Database:
addValueEventListener()
addListenerForSingleValueEvent()
addChildEventListener()
When w...
