Checking Arrays

[minckle]

I have
testArray: Array[0..10] of String;
testButton: TButton;
saveButton: TButton;

the first time i click the button i want to see all the elements of the array.
When i click the save button i want to save the amended array.

The first time i click the testButton i get an error because nothing is in the array yet (on debug the array show inaccessible value). how do i check the array to see if anythings in it????

I dont have a problem with showing or saving the array.

hope you understand what i trying to say

 

[hilfy]

If you're filling the array with strings, why not use a TStringList instead? I think all of TMemo, TListbox, etc. type components use a TStringList to show their data. IMHO, a TStringList is also easier to manipulate than an array and if you put the "create" for the stringlist in the OnCreate event handler, you don't have to worry about whether there's anything in it or not.

-Dell

 

[minckle]

Sorry i was just to trying to describe the problem in an easy way, Im actually storing a series of objects in the array, so it needs to be an array i think

 

[goodmanrAy]

if assigned(testArray) then

use the assigned function check the array

 

[whosrdaddy]

you can use a TObjectlist if you want. it has some nice features like freeing the object if you remove it from the list...

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What You See Is What You Get

 

[minckle]

thanks ill give it a go

 

[hilfy]

TStringList also has an Object property, so instead of using the Add method you use the AddObject method which will add the object with an association to the string you're adding at the same time.

-Dell