public void BindData()
    {
        SqlConnection conn = new SqlConnection();
        conn.ConnectionString = "Data source=(local);initial catalog=Test;user id=sa;pwd=123456;";
        conn.Open();
        string strCmd = "SELECT * FROM TestOne";
        SqlDataAdapter myDataAdapter;
        DataSet myDataSet = new DataSet();
        myDataAdapter = new SqlDataAdapter(strCmd, conn);
        myDataAdapter.Fill(myDataSet, "TestOne");
        Label1.Text = myDataSet.Tables[0].Rows[0]["Name"].ToString();
    }

说明:数据库:Test ;数据表:TestOne  ;表字段:Name