2007. november 27., kedd
Object List(String) Using TList
Problem/Question/Abstract:
Object List(String) Using TList
Answer:
Couldn't find too many examples on the net of how to do this so here it is.
Here some code for all you newbies(like myself kinda). That will let you create your own objectlist.
I used code from a program that manages email accounts for this example..
add items via accountlist.add(TAccount.Create(Server, User, Password);
uses classes;
type
//Define the type of data for it to hold
TAccount = class
private
fServer: string;
fUser: string;
fPassword: string;
public
constructor create(Server, User, Password: string);
property Server: string read fServer write FServer;
property User: string read fUser write FUser;
property Password: string read fpassword write fpassword;
end;
// define the list
TAccountList = class(TList)
private
function GetItem(AIndex: Integer): TAccount;
public
constructor create;
destructor Destroy; override;
function add(Account: TAccount): integer;
property Items[AIndex: Integer]: TAccount read getitem;
end;
implementation
constructor TAccount.create(Server, User, Password: string);
begin
fserver := Server;
fUser := User;
fPassword := Password;
end;
constructor TAccountlist.create;
begin
inherited Create;
end;
destructor TAccountList.Destroy;
begin
try
Clear;
finally
inherited Destroy;
end;
end;
function TAccountlist.add(Account: TAccount): integer;
begin
result := inherited Add(Account);
end;
function TAccountList.GetItem(AIndex: integer): TAccount;
begin
result := TAccount(inherited Items[AIndex]);
end;
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