挿入日時intosqlサーバー

Question

 textBox1.Text = DateTime.Now.ToString("dd/mm/yyyy"); 
     textBox2.Text = DateTime.Now.ToString("hh:mm:ss"); 
    } 

    private void button1_Click(object sender, EventArgs e) 
    { 
     try 
     { 

      cmd = new SqlCommand("insert into datee (date_m,heur_m)values('" +textBox1.Text + "','" +textBox2.Text + "'", cn); 
      cn.Open(); 
      cmd.ExecuteNonQuery(); 
      MessageBox.Show("succes"); 
     } 
     catch (Exception ex) 
     { 
      MessageBox.Show("" + ex); 
     } 
     finally 
     { 
      cn.Close(); 
     } 

Answer 1

DateTime result; 
string s = String.Format("{0} {1}", textBox1.Text, textBox2.Text); 
if (DateTime.TryParse(s, out result)) 
{ 
    cmd = new SqlCommand("INSERT INTO datee (date_m) VALUES (@value)", cn); 
    cmd.Parameters.AddWithValue("@value", result); 
    cn.Open(); 
    cmd.ExecuteNonQuery(); 
} 

ここdate_m列はdatetimeタイプがあります。

Answer 2

textBox1.Text = DateTime.Now.ToString("yyyy-MM-dd"); 
textBox2.Text = DateTime.Now.ToString("HH:mm:ss"); 

using(var cn = new SqlConnection(...)) 
{ 
    using(var command = new SqlCommand("", cn) 
    { 
     command.CommandText = "INSERT INTO datee(date_m,heur_m) VALUES (@sqltime, @sqltime1); 
     command.Parameters.AddWithValue(@sqlTime, textBox1.Text); 
     command.Parameters.AddWithValue(@sqlTime1, textBox2.Text); 
     cn.open(); 
     command.ExecuteNonQuery(); 
    } 
}