{C#}Enter功能如同Tab功能

using System.Windows.Forms;
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            if (keyData == Keys.Enter)
            {
                SendKeys.Send("{TAB}");
                return true;
            }
            return base.ProcessCmdKey(ref msg, keyData);
        }

{VB6}透過週期找出所屬週期的第一日日期

以下範例為
A:2011/01/01為第一周，則第二週的第一日日期為何？Q:2011/01/03

Private Sub Command1_Click()
  
    Dim iDate As Date         '指定第一周日期
    Dim i As Long                '指定週數

    iDate = "2011-01-01"
    i = 2
    iDate = iDate + (i - 1) * 7 - 1

    'Weekday(第一周日期,星期幾為新的一週)
    iDate = iDate - Weekday(iDate, vbMonday) + 1

    '結果顯示
    Label1.Caption = iDate

End Sub

{C#-SQL資料庫}OleDb connection寫法

OleDbConnection conn = new OleDbConnection();
OleDbCommand cmd = new OleDbCommand();

conn.ConnectionString = @"Provider=MSDAORA;Data Source=xxxx;User Id=xxxxx;Password=xxxxxx;";
 //conn.ConnectionString = ConfigurationManager.ConnectionStrings["cimdb-ConfigLab"].ConnectionString;
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
cmd.CommandText = @"select * From abc where aufnr ='xx' ";
 conn.Open();
//取得第一筆第一欄資料
object s = cmd.ExecuteScalar();
conn.Close();
this.textBox1.Text = s.ToString();