Object information into a label

I am trying to do the following calculation and would like the result listed in a label (or textbox)1 protected void Button1_Click(object sender, EventArgs e)
2 {
3 try
4 {
5 StatConnector R = new STATCONNECTORSRVLib.StatConnectorClass();
6 R.Init("R");
7 R.EvaluateNoReturn("a<-12");
8 object ret = R.Evaluate("a");
9 }
10 catch (Exception ex)
11 {
12
13 }
14 ...