Haw to allow to enter number only from number 1 to 65535.

[especta]

i have problem to allow enter only from 1 to 65535 bicouse
example if enter 10000,2000 is ok but enter 99 not.

hire 1 example (not working)

If somthing.Text > '65535 'then
ShowMessage(' you enter biger Number from 65535');
Exit;

hire 2 example (not working)

var
  result : Integer;
  string1: String;
  string2: String;
begin
string1:='65535';
string2:= somthing.Text;
result := AnsiCompareStr(string1, string2);
if result < 0 then ShowMessage(string1+' < '+string2);

please help haw to solve this.
Thanks.

[quaifp1]

i have problem to allow enter only from 1 to 65535 bicouse
example if enter 10000,2000 is ok but enter 99 not.

hire 1 example (not working)

If somthing.Text > '65535 'then
ShowMessage(' you enter biger Number from 65535');
Exit;

hire 2 example (not working)

var
  result : Integer;
  string1: String;
  string2: String;
begin
string1:='65535';
string2:= somthing.Text;
result := AnsiCompareStr(string1, string2);
if result < 0 then ShowMessage(string1+' < '+string2);

please help haw to solve this.
Thanks.

[DELPHI]

1. Convert your string to a number and test that.

2. create the following function and pass the string as

IF Between(Atextbox.Text,1,65535)
THEN MessageDlg('Thats OK',MtInformation,[MbOK],0)
ELSE MessageDlg('Bad Number',MtInformation,[MbOK],0);

You could also vary the Value by type and overload this to do any numbers

FUNCTION Between(Value : String;Low,High : LongInt) : BOOLEAN;
VAR
N : Integer;
Begin
TRY
N := StrtoInt(Value);
RESULT := ((N >= Low) AND (N <= High));
EXCEPT ON EConvertError DO
RESULT := FALSE;
End;
End;

[especta]

[DELPHI]

1. Convert your string to a number and test that.

2. create the following function and pass the string as

IF Between(Atextbox.Text,1,65535)
THEN MessageDlg('Thats OK',MtInformation,[MbOK],0)
ELSE MessageDlg('Bad Number',MtInformation,[MbOK],0);

You could also vary the Value by type and overload this to do any numbers

FUNCTION Between(Value : String;Low,High : LongInt) : BOOLEAN;
VAR
N : Integer;
Begin
TRY
N := StrtoInt(Value);
RESULT := ((N >= Low) AND (N <= High));
EXCEPT ON EConvertError DO
RESULT := FALSE;
End;
End;

thanks to replay (FUNCTION is ok i have test it ) but i got strange agan i can enter example 2000,23222, but if enter 88 i got error...

[FlamingClaw]

I made a pascal source code :D

program sablon;

uses crt;

type range = 1..65535;

const ok = 'ok.';
      error = 'error';
      min = 1;

var one:longint;
    two:range;
    user,temp:string;

function converter(x:string):string;
var code:integer;
begin
     two:=65535;
     {$I-}
     val(x,one,code);

     if (ioresult <> 0) then begin
        converter:=error;
        exit;
     end;
     if (code <> 0) then begin
        converter:=error;
        exit;
     end;
     if (one > two) or (one < min) then converter:=error else converter:=ok;
     {$I+}
end;

begin
     clrscr;
     temp:=error;
     while temp <> ok do begin
           write('please enter a number from 1 to 65535: ');
           readln(user);
           temp:=converter(user);
           writeln(temp);
     end;

     readln;
end.
{created by FlamingClaw 2009}

[cao]

var
xx:Integer;
begin
try
xx:=strtoint(something.text);
if xx<1 then showmessage('number too small') else
if xx>65535 then showmessage('number too big') else
Showmessage('number accepted');
except
showmessage('Not a valid number');
end;
end;

[especta]

BIG Thanks for replay to:
quaifp1
cao
FlamingClaw

i have solved .........