[ServerFiles]

thanks, worked now but I have another problem.

When I open the dialog for the first time, it shows no problem but whenever I open it for second time or third or more, it doubles up (example below)

PHP код:

/* What I mean is like this (dialog):
Username 1
Username 2
Username 3
Now when I reopen the dialog 2nd time:
Username 1
Username 2
Username 3
Username 1
Username 2
Username 3
and so on.
*/
                case 6:
                {
                    if(strcmp(House[tmpid][tmpowner], PlayerName(playerid), false) && PlayerInfo[playerid][power] < 4) return SendClientError(playerid, "You don't own this house!");
                    {
                        new Query[256];
                        mysql_format(sqldb, Query, sizeof Query, "SELECT * FROM `HouseKeys` WHERE `houseid` = '%d'", tmpid);
                        mysql_tquery(sqldb, Query, "OnPlayerDupekeyLoad", "i", playerid);
                        new laststring[400],string[400];
                        for(new i = 0; i < DupekeyCount[playerid]; i++)
                        {
                            format(laststring,sizeof(laststring),"%%s\n",laststring,DupekeyString[playerid][i]);
                        }
                        format(string,sizeof(string),"{FF0000}[+] {FFFFFF}Create a new key\n");
                        strcat(string,laststring);
                         ShowPlayerDialog(playerid,3001,DIALOG_STYLE_LIST,"Manage Duplicate Keys",string,"Select","Cancel");
                         return 1;
                    }
                }