TServerSocket and TClientSocket

I use this code to reveive data : But It's not work.Can you Help me ?

procedure TForm1.ServerSocket1ClientRead(Sender: TObject;
  Socket: TCustomWinSocket);
var
  i:integer;
  sRec : string;
begin
  for i := 0 to ServerSocke开发者_C百科t1.Socket.ActiveConnections-1 do
  begin
    with ServerSocket1.Socket.Connections[i] do
    begin
      sRec:=ReceiveText;
      if sRec <> '' then
      begin
        if RemoteAddress='192.168.0.1' then
        begin
          if ReceiveText='1' then
            Btn1.Color:=clNavy;
          ADOQuery1.Active:=True;
        end;
        if RemoteAddress='192.168.0.1' then
        begin
          if ReceiveText='2' then
            Btn1.Color:=clRed;
          Pnl1.Visible:=True;
        end;
      end;
    end;
  end;
end;

You are attempting to read from EVERY client connection in the TServerSocket.Socket.Connections list whenever ANY client sends data. You should be using the TCustomWinSocket parameter that the event provides instead. It tells you the exact client that is sending data.

You also have some other logic errors in your code as well.

Try this instead:

procedure TForm1.ServerSocket1ClientRead(Sender: TObject; Socket: TCustomWinSocket);
var
  sRec : string;
begin
  sRec := Socket.ReceiveText;
  if sRec <> '' then
  begin
    if Socket.RemoteAddress = '192.168.0.1' then
    begin
      if sRec = '1' then Btn1.Color := clNavy;
      ADOQuery1.Active := True;
      if sRec = '2' then Btn1.Color := clRed;
      Pnl1.Visible := True;
    end;
  end;
end; 

Or maybe you meant something more like this?

procedure TForm1.ServerSocket1ClientRead(Sender: TObject; Socket: TCustomWinSocket);
var
  sRec : string;
begin
  sRec := Socket.ReceiveText;
  if sRec <> '' then
  begin
    if Socket.RemoteAddress = '192.168.0.1' then
    begin
      if sRec = '1' then begin
        Btn1.Color := clNavy;
        ADOQuery1.Active := True;
      end
      else if sRec = '2' then begin
        Btn1.Color := clRed;
        Pnl1.Visible := True;
      end;
    end;
  end;
end; 

Replace ServerSocket1.Socket with Socket param and test again. Of couse to remove the for loop