[EthanR]

Код:

if(!strcmp(cmdtext[1],"myitems",true))
{
    new idx, amount,itemname[MAX_ITEM_NAME];
    new tmp[128], string[256];
    while(GetPlayerItemInfo(playerid,idx,itemname,_,amount))
    {
        if(strlen(itemname))
        {
          format(tmp,128,"%s -- %d\n",itemname,amount);
	  strcat(string, tmp);
        }
    }
    ShowPlayerDialog(playerid, INVENTORY, DIALOG_STYLE_MSGBOX, "{6199D4}Inventars.", tmp,"Aizvert", "");
    return 1;
}

try this here. might work. (I don't really like strcat so better try it lol)

EDIT: For you to understand, strcat moves 1 string into another. You first have to make a string with all Information before you can display the dialog. So first you collect the information in the while(GetPlayerItemInfo loop and then you display the dialog after it.