[Cheater912]

I've been obsessed with the ternary operator lately, so I wanted to show you guys what it is since beginners don't usually take use of it. The ternary operator (?) allows you to condense an if statement. So lets take this chunk of code for example:

PHP Code:

if (TextBox1.Text == String.Empty)
    Button1.Enabled = false;
else
    Button1.Enabled = true; 


That would disable Button1 if the text box (TextBox1) was empty. Using the ternary operator, you can condense that into 1 single line of code. Here's an example that has the same function as the code above:

PHP Code:

Button1.Enabled = (TextBox1.Text == String.Empty) ? false : true; 


The code after the ternary operator (?) sets the Enabled property to false if the statement in the parentheses is true (TextBox1.Text == String.Empty).

":" is a substitute for "else". If the code in the parentheses is false, then it will use the code at the end.

You can use the ternary operator with any data type and even wrap functions around it.

PHP Code:

string MyString = Base64Encode((TextBox1.Text == String.Empty) ? "No Text Entered" : TextBox1.Text); 


If needed, it is also possible to embed ternary operators within ternary operators.

PHP Code:

string MyString = (statement) ? ((statement) ? "Yo" : "Hey") : "Hello"; 


Other Examples:

PHP Code:

Button2.Enabled = Button1.Enabled = (TextBox1.Text == String.Empty) ? false : true; 


[ohara]

I tried understanding that but was unsuccessful, what are these codes used for?

[Cheater912]

Originally Posted by ohara

I tried understanding that but was unsuccessful, what are these codes used for?

The code boxes are just examples. The operator just lets you condense statements into a single line.

[ohara]

Originally Posted by Cheater912

The code boxes are just examples. The operator just lets you condense statements into a single line.

No I mean like in general, I have no clue about this stuff but I would like to learn.

[Cheater912]

Originally Posted by ohara

No I mean like in general, I have no clue about this stuff but I would like to learn.

Start with downloading Visual C#. It's free

[ohara]

Originally Posted by Cheater912

Start with downloading Visual C#. It's free

OK, I guess I'll give it a go.

[Tucker]

Two strings can enable a button to.
e.g. Could be used for a login to make sure Username and Password Text Boxes aren't null.

PHP Code:

button1.Enabled = String.IsNullOrEmpty(textBox1.Text) || String.IsNullOrEmpty(textBox2.Text) ? false : true; 


For those who are new to programming, you would add this to both of the Text Box Text Changed events.

[austin12456]

^^
(x || y) is already a boolean.

this.button1.Enabled = !(String.IsNullOrEmpty(this.textBox1.Text) || String.IsNullOrEmpty(this.textBox2.Text));

[iCypher]

I tried testing if this would speed up code execution. It does execute like .1 seconds faster, but I don't see a huge reason to use this.

[Cheater912]

Originally Posted by iCypher

I tried testing if this would speed up code execution. It does execute like .1 seconds faster, but I don't see a huge reason to use this.

I use it cause it saves time and it makes things easier.