C#

OriginalGriff wrote:

With serial data, you will get a DataReceived event fired when there is one of more characters received by the computer: it will not wait until they have all been read, because it does not know when the message ends.

void arduinoBoard_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
    string data = arduinoBoard.ReadTo("\x03");//Read until the EOT code
    //Split into 'date=temperature' formatted text
    string[] dataArray = data.Split(new string[]
    {"\x02", "$" }, StringSplitOptions.RemoveEmptyEntries);
    //Iterate through the split data and parse it into weather data items
    //and add them to the list of received weather data.
    foreach (string dataItem in dataArray.ToList())
    {
       WeatherDataItem weatherDataItem = new WeatherDataItem();
       weatherDataItem.FromString(dataItem);
       weatherDataItems.Add(weatherDataItem);
     }

     if(NewWeatherDataReceived != null)//If there is someone waiting for this event to be fired
     {
       NewWeatherDataReceived(this, new EventArgs()); //Fire the event,
            // indicating that new WeatherData was added to the list.
     }
}

FilipJ wrote:

Service-based Database

• Start by building trivial applications that perform simple math calculations (e.g. addition, multiplication, identifying unique numbers in a collection, etc.)
  
• Next, get to know how to process character strings.
  
• Along the way, introduce yourself to the different types of collections (lists, arrays, dictionaries, sets) and see how and where they're used.
  
• Then, take a step into LINQ (Language Integrate Query Language) and see how LINQ makes it easy to do the things you did manually when you started working with collections.
  
• Get to know to read and write files (text files, binary files and compressed files).
  
• Then, introduce yourself to XML serialization and learn how to store and retrieved structured data from an XML file.
  
• Next, discover simple data access from a database and introduce yourself to the basics of SQL.
  
• Dip your toes into the wonderful world of fetching data from the internet and learn how to use the HttpClient class.
  

public class MyClass
    {
    public int I;
    public int J;
    }
public struct MyStruct
    {
    public int I;
    public int J;
    }

public void UseClassAndStruct()
    {
    MyClass mc = new MyClass();
    mc.I = 1;
    mc.J = 2;
    MyStruct ms = new MyStruct();
    ms.I = 1;
    ms.J = 2;
    }

public void UseClassAndStruct()
    {
    MyClass mc = new MyClass();
    mc.I = 1;
    mc.J = 2;
    MyStruct ms;
    ms.I = 1;
    ms.J = 2;
    }

MyClass mc;

mc = new MyClass();

int i;
double j;
Point p;

int i = 3;
int j = i;
i = 4;
Console.WriteLine("{0}:{1}", i, j);

MyClass i = new MyClass();
i.I = 3;
MyClass j = i;
i.I = 4;
Console.WriteLine("{0},{1}", i.I, j.I);

MyStruct i = new MyStruct();
i.I = 3;
MyStruct j = i;
i.I = 4;
Console.WriteLine("{0},{1}", i.I, j.I);

public void ClassMod(MyClass mc)
    {
    mc.I += 100;
    Console.WriteLine(mc.I);
    }
public void StructMod(MyStruct ms)
    {
    ms.I += 100;
    Console.WriteLine(ms.I);
    }

MyClass mc = new MyClass();
mc.I = 3;
ClassMod(mc);
MyStruct ms = new MyStruct();
ms.I = 3;
StructMod(ms);
Console.WriteLine("{0},{1}", mc.I, ms.I);

103
103
103,3

List<object> mixedList = new List<object>();

mixedList.Add("Hello there");
mixedList.Add(Form1);

mixedList.Add(12);