[AndySedeyn]

EDIT
You have to create a variable that checks if the player is logged in or if the player is registering.
Like so:


This is our variable. It should only return 0 or 1 (False or true) and therefor it's a boolean.

pawn Код:

new bool:gRegistering[MAX_PLAYERS];

We assign a value to the variable. If the player is already registered then we say that gRegistering[playerid] = false.
If the player is not registered yet we assign it to a true value.

pawn Код:

public OnPlayerConnect(playerid)
{
    if(fexist(UserPath(playerid)))
    {
        INI_ParseFile(UserPath(playerid), "LoadUser_%s", .bExtra = true, .extra = playerid);
        ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_INPUT,""COL_WHITE"Login",""COL_WHITE"Type your password below to login.","Login","Quit");
        gRegistering[playerid] = false;
    }
    else
    {
        ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_INPUT,""COL_WHITE"Registering...",""COL_WHITE"Type your password below to register a new account.","Register","Quit");
        gRegistering[playerid] = true;
    }
    return 1;
}

When the player disconnects (by a kick or by a manual /q) we check if the player is registered. If not: We don't save his data. Thus, we avoid having a file created.

pawn Код:

public OnPlayerDisconnect(playerid)
{
    if(!gRegistering[playerid])
    {
        //Save the user's data.
    }
    return 1;
}

When the player registers, we reset the gRegistering variable to false. Otherwise his data will not save upon disconnect.

pawn Код:

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    switch( dialogid )
    {
        case DIALOG_REGISTER:
        {
            if(!response)
            {
                if(fexist(UserPath(playerid)))
                {
                    fremove(UserPath(playerid));
                    return SetTimerEx("KickDelay", 100, false, "i", playerid);
                }
            }
            if(response)
            {
                if(!strlen(inputtext)) return ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_INPUT,""COL_WHITE"Register",COL_RED"Invalid Password","Register","Close");
                new INI:File = INI_Open(UserPath(playerid));
                INI_SetTag(File,"data");
                INI_WriteInt(File,"Password",udb_hash(inputtext));
                INI_WriteInt(File,"Cash",0);
                INI_WriteInt(File,"Admin",0);
                INI_WriteInt(File,"Kills",0);
                INI_WriteInt(File,"Deaths",0);
                INI_Close(File);
                ShowPlayerDialog(playerid, DIALOG_SUCCESS_1, DIALOG_STYLE_MSGBOX,""COL_WHITE"Success",""COL_GREEN"El hamd ll allah :D","Kois !","");
                gRegistering[playerid] = false;
            }
        }
        case DIALOG_LOGIN:
        {
            if(!response) return Kick(playerid);
            if(response)
            {
                if(udb_hash(inputtext) == PlayerInfo[playerid][pPass])
                {
                    INI_ParseFile(UserPath(playerid), "LoadUser_%s", .bExtra = true, .extra = playerid);
                    GivePlayerMoney(playerid, PlayerInfo[playerid][pCash]);
                    ShowPlayerDialog(playerid, DIALOG_SUCCESS_2, DIALOG_STYLE_MSGBOX,""COL_WHITE"Success",""COL_GREEN"El hamd ll allah :D","Kois !","");
                }
                else
                {
                    ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_INPUT,""COL_WHITE"Login"COL_RED"Invalid Paswword","Login","Close");
                }
            }
        }
    }
    return 0;
}

Our delayed kick.

pawn Код:

forward KickDelay(playerid);
public KickDelay(playerid)
{
    Kick(playerid);
}