How Do I Fetch Current Value From Data Base?

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C#

Hi,
i am making a bill application in window form C# .i take two data set and drag and drop two tables for printing data on report view.then i create a report and bind data with these data set then after new Form and drag and drop report viewer control.when i run this application on clicking submit button current bill's data inserted into data base.and i want to print this last bill id's detail on report.![enter image description here][1]


when i click on submit button this bill no's all detail inserted into data base properly.
Code of save and print button in c#:

private void button3_Click_1(object sender, EventArgs e)
       {
           this.Close();

           Form2 f2 = new Form2();
           f2.Show();

       }

after clicking save and print below form open.![enter image description here][2].
Code of Button click :

private void button1_Click(object sender, EventArgs e)
         {
	da = new SqlDataAdapter("select billId from Bill_Detail order by billId DESC", cn);
            DataSet ds = new DataSet();
            da.Fill(ds);            
            int id = Convert.ToInt32(ds.Tables[0].Rows[0][0].ToString());
             textBox1.Text = id.ToString();   
           this.Customer_detailTableAdapter.Fill(this.DataSet1.Customer_detail, Convert.ToInt32(textBox1.Text));             
             this.Bill_DetailTableAdapter.Fill(this.DataSet2.Bill_Detail, Convert.ToInt32(textBox1.Text));
             reportViewer1.LocalReport.Refresh();
             this.reportViewer1.RefreshReport();
         }

i have tried but it not works.how can i get current Bill no's detail in report viewer?



this is my report viewer from.this form takes bill no correctly but not print that bill no's data.