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Converting a string to an Array

I'm Pulling information from a DataBase in the form of a string.  I need to know how to convert the data into an array.

D := Table1.FieldByName ('drives').AsString;

I have an array defined
MyArray : array[0..15] of char;
when I try to assign D to MyArray I keep getting incompatible types
'Array' 'String'  
MyArray := D;

I need to look at the data from the database one Character at a time.
0
msmouse
Asked:
msmouse
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1 Solution
 
LischkeCommented:
Aside from the possibility to access each character separately by using D[x] you can do:

  PChar(@MayArray[0]) := Table1.FieldByName ('drives').AsString;

or

  Move(D[1], MyArray, Length(D));

Ciao, Mike
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LischkeCommented:
Sorry, only the second solution works. Casting the array to anything does only produce the well known "left side cannot be assigned to" error.

Ciao, Mike
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msediCommented:
Hello,

First, why don't you use a dynamic array. With the array you use, you are always fixed to a specific size. So try
 
  var
    MyArray : array of Char;

instead of your first thing. Then set the length of the array with SetLength(MyArray, e.g. 15). That's the first thing. You can access the array as usual.

After that you can get the value of your database with

var
  D : string;

begin  
  D := Table1.FieldByName      ('drives').AsString;

  if (D <> '') then
  begin
    MyArray[0] := D[1]; // First element in string
  end
  else MyArray := #0;
end;
   
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LischkeCommented:
Hi msedi,

welcome on E-E :-) I want to let you know that proposing an answer is considered bad behaviour and against the rules here if someone else (in this case me :-)) has already commented to the question. Of course, if you are very sure you have the solution and all other just have given nonsense then proposing an answer is acceptable. But this usually happens very seldom and when using only comments then the questioneer can pick one and promote it to being an answer. Additionally, it happend quite often (also to me) that the proposed answer has been accepted accidently although another one was meant, because the questioneer thought the answer came from the same person as the previous comments.

Thank you and

Ciao, Mike
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msediCommented:
Sorry,

I didn't see that.

Greetings, Martin
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msmouseAuthor Commented:
msedi,  I tried your way but you get 'dynamic Array' 'char' error.

Lischke  The move function seems to be a step in the right direction, I'm not getting the types error.

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msmouseAuthor Commented:
A step in the right direction, Now I just have to work with getting the array to do what I want.

Thanks
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