DataSet

Question

 1. M using Visual Studio 2005 and I keep getting this warning in C# that The Variable 'DataSet1' is either undeclared or was never assigned. How do I solve that?

2.

private void btnDep_Click(object sender, EventArgs e)

        {

            try

            {

                if (txtAccNum.Text != "" && txtBal.Text != "" && txtBr.Text != "" && lstClient.Text != "")

                {

                    double Bal, Acc, Br;

                    BillionBanking client = new BillionBanking();

 

                    Bal = client.ToString();

                    Acc = client.ToString();

                    Br = client.ToString();

                    lstClient = client.ToString();

 

                    txtBal.Text = "R " + c.ToString(Bal);

                    txtBr.Text = c.ToString(Br);

                }

                else

                {

                    MessageBox.Show("Select The Correct Number!!");

                }

            }

            catch (Exception client)

            {

                MessageBox.Show(client.Message.ToString());

            }

        }

    }

}

From the above code I keep getting errors  "Cannot implicitly convert type 'string' to 'double'. I have been advised to double.Parse yet it still doesn't work.

Thanks for your time!!