Hello World!
I'm talking about adding code in C#.
I'm continuing with the world project
that we worked on before.
And in the previous example,
I changed the properties
by using the properties window.
We can open with F4,
But instead of changing those properties text,
and backcolor,
and backgroundImageLayout,
in design time with properties window,
I'm going to double-click on the form
and I'm going to change them
in form load.
and form load takes place
uh, before you actually see the form
when you run the application.
So, let's change the text.
And if I start typing.
you'll see property,  text equals
"Hello earthlings"
and we can put that inside
double quotes because that's a string.
And then we end the statement
with a ; semicolon.
And when we run this
Instead of seeing the words "Hello World"
we see the words "Hello earthlings"
Let's change the color.
Another trick I can do is type this,
and then dot (.) and then after we type dot,
we'll see a list pop up of the possibilities that I can type.
Let's just type 'B'
and get backcolor and double-click on that,
equals, and then we type color.
And once we type the 'C',
We can pick that from the list, dot (.)
and then we have a whole list of colors that we can choose from, uh...
slateblue,  double-click on that,
and again a semicolon (;); and instead of having the
just one world. I'm going to have
this dot(.)
background image layout
equals...  image layout,
dot (.) tile.
Double click on that, and you can see, I didn't really type a whole lot of that.
And let's run that, and you can see
the text says "hello earthlings"
I have this, a different color, whatever it was,  slate blue
and my image is tiled.
And we're just going to do one more thing here.
I'm  going to go all the way up to the top,
Press enter, and add a line,
Beginning with slash-slash ( // )
That's a comment : put the name of the programmer,
and a description of the program
is hello world in code.
And comments  don't affect the way the program runs,
They are just information for the programmer.
That's a good idea to always put that in when you write your program.