[LukisHard]

Use the CallBack OnDialogResponse:

Код:

CMD:weapons(playerid, params[])
{
    ShowPlayerDialog(playerid,WEAPON_DIALOG,DIALOG_STYLE_LIST,"Weapons","Silence $500\nAK-47 $2000\nM4 $3000\nDesert Eagle $500\n9mm $200\nMP5 $300\nMicro SMG $200\nCombat Shotgun $500\nShotgun $400\nSniper Rifle $1500\nSawnoff Shotgun $500","Ok","Exit");
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    if(dialogid == WEAPON_DIALOG)
       {
            if(response) // The First Button(OK)
           {
                if(dialoglist = 0) // The first on List: (Silence)
                {
                 return 1;
                 }
                  if(dialoglist = 1) // The second on List
                {
                 return 1;
                 }
             }
       }
    return 1;
}

i hope that i've helped you.