To get the number of array indexes use the High function
 
expl.
 
High(StrArray)

"Chris @ IT" <[EMAIL PROTECTED]> wrote:
Try 

length(StrArray)


Chris Albert,
Innovative Technologies.
http://www.it.co.ke/beta


-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf
Of Nesler, Thomas J
Sent: Monday, August 08, 2005 7:15 PM
To: [email protected]
Subject: [delphi-en] Getting a Dynamic arrays length

Hello!

I am using Delphi 5.  I need to work with Dynamic arrays.  Reading in
the help file it says that:

'Once a Dynamic array has been allocated, you can pass it to the
standard functions Length, High and Low.  Length returns the number of
elements in the array, ...'

I can't seem to get this to work.  When I try to compile I get this
error:

'[Error] Unit1.pas(34): Record, object or class type required'

Here is some sample code I used to try to figure out how to work with
dynamic arrays:

procedure TForm1.Button1Click(Sender: TObject);
Var
StrArray : Array of String;
I :integer;
begin
    SetLength(StrArray,20);
    For I := 0 to 19 do Strarray[I]:= IntToStr(I) + 'Data';
    label1.Caption := IntToStr(Strarray.length);    <-----Error here
end;

************  End of code *****************

What am I doing wrong?  I realize this code is contrived but I should be
able to derive what the size of an array is via this method, right?

Thanks in advance!

Tom Nesler
Live long!...   Code Well!...   and Prosper!...   V



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