CODEWITHSUNDEEP
flashactionscriptif-statement
6TTW014
6TTW014

Reputation: 627

Flash - Actionscript if ... else statement

I have a basic actionscript code which basically shows a list depending on the value of a text box.

if (txtValue.text = "0")
{
    lstFilm.visible = false;
}
else if (txtValue.text = "1")
{
    lstFilm.visible = true;
}

The problem i'm having with it is instead of it changing the visibility of the list, it changes the value in the box. Any ideas why or how I could achieve this?

Upvotes: 0

Views: 1753

Answers (2)

chamberlainpi
chamberlainpi

Reputation: 5241

An if statement typically needs to evaluate a 'true' or 'false' operation.

By using:

if(txtValue.text = "0") { ... }

You are actually assigning the value "0" to the 'text' property of your textfield - In other words you are NOT checking if it is EQUALS-TO "0".

You have to use the double-equals operator to return the desired outcome:

if(txtValue.text == "0") { ... }

This will then pass through your statement correctly.

Only some rare cases, you will wish to do an assignment (instead of 'checking' a condition) within the if-statement. This can often be found in file-reading or reference-checking statements like the following:

var someVar:Array;
if(someVar = methodThatCanReturnList()) { ... }

But this method is a bit frown upon. And for beginners it is much more recommended to master the "==" operator first.

Upvotes: 1

Taurayi
Taurayi

Reputation: 3207

Use == which is the equality operator not =the assignment operator.

Upvotes: 2

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