private void button_submit_Click(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection(forgotpw.connectionstr);
conn.Open();
String sql = "select * from [dbo].[user] where uname='" + text_un.Text + "'and upw='" + text_pw.Text + "'and uphone='" + text_phone.Text + "'and uemail='" + text_email.Text + "'and uredate='" + dateTimePicker1.Value + "'";
SqlDataAdapter adp = new SqlDataAdapter(sql, conn);
DataSet ds = new DataSet();
adp.Fill(ds);
if (ds.Tables[0].Rows.Count > 0)
{
DialogResult result = MessageBox.Show("Sure to delete?", "", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (result == DialogResult.Yes)
{
string sqluid = "select * from [dbo].[user] where uname='" + text_un.Text + "'";
SqlCommand finduid = new SqlCommand(sqluid, conn);
SqlDataReader uidread = finduid.ExecuteReader();
uidread.Read();
string uid = uidread["uid"].ToString().Trim();
uidread.Close();
SqlCommand cmd1 = conn.CreateCommand();
cmd1.CommandText = "delete from [dbo].[active] where uid='" + uid + "'";
cmd1.ExecuteNonQuery();
SqlCommand cmd2 = conn.CreateCommand();
cmd2.CommandText = "delete from [dbo].[user] where uname='" + text_un.Text + "'";
cmd2.ExecuteNonQuery();
conn.Close();
MessageBox.Show("Succeeded!");
string un = text_un.Text;
this.Close();
fm1.Close();
login form = new login();
form.Show();
}
}
else
{
warn.Visible = true;
}
}
protected void button_submit_Click(object sender, EventArgs e)//以插入表现注册新账号
{
if (text_un.Text == "")
{
username.ForeColor = Color.FromArgb(255, 0, 0);
}
else
{
username.ForeColor = Color.FromArgb(255, 255, 255);
}
if (text_pw.Text == "")
{
password.ForeColor = Color.FromArgb(255, 0, 0);
}
else
{
password.ForeColor = Color.FromArgb(255, 255, 255);
}
if (text_confirmpw.Text == "")
{
confirmpw.ForeColor = Color.FromArgb(255, 0, 0);
}
else
{
confirmpw.ForeColor = Color.FromArgb(255, 255, 255);
}
if (text_phone.Text == "")
{
phone.ForeColor = Color.FromArgb(255, 0, 0);
}
else
{
phone.ForeColor = Color.FromArgb(255, 255, 255);
}
if (text_confirmpw.Text != text_pw.Text)
{
confirmpw.ForeColor = Color.FromArgb(255, 0, 0);
}
int lenun, lenpw;
lenun = System.Text.Encoding.Default.GetByteCount(text_un.Text);
lenpw = System.Text.Encoding.Default.GetByteCount(text_pw.Text);
Regex number = new Regex(@"^[0-9]+$"); //仅数字的正则表达式
Regex letter = new Regex(@"^[A-Za-z]+$"); //仅字母的正则表达式
if ((lenun < 8 || lenun > 16) && (!number.IsMatch(text_un.Text) || !letter.IsMatch(text_un.Text) || !text_un.Text.Contains("_")) && text_un.Text != "")
{
warn2.Visible = true;
}
else
{
warn2.Visible = false;
}
if ((lenpw < 8 || lenpw > 16) && (!number.IsMatch(text_pw.Text) || !letter.IsMatch(text_pw.Text)) && text_pw.Text != "")
{
warn2.Visible = true;
}
else
{
warn2.Visible = false;
}
if ((!number.IsMatch(text_phone.Text)) && text_phone.Text != "")
{
warn3.Visible = true;
}
else
{
warn3.Visible = false;
}
if (!text_email.Text.Contains("@") && text_email.Text != "")
{
warn3.Visible = true;
}
else
{
warn3.Visible = false;
}
if (username.ForeColor != Color.FromArgb(255, 0, 0) && password.ForeColor != Color.FromArgb(255, 0, 0) && confirmpw.ForeColor != Color.FromArgb(255, 0, 0) && phone.ForeColor != Color.FromArgb(255, 0, 0) && warn2.Visible == false && warn3.Visible == false)
{
SqlConnection conn = new SqlConnection(register.connectionstr);
conn.Open();
string sql = String.Format("select uname from [dbo].[user] where uname = '{0}'", text_un.Text);
SqlCommand command = new SqlCommand(sql, conn);
SqlDataReader datareader = command.ExecuteReader();
int i;
for (i = 0; datareader.Read(); i++)
{
}
if (i > 0)
{
warn1.Visible = true;
}
else//未注册，检查填写邮箱，向数据表中插入相应的用户名和密码
{
datareader.Close();
string newuser = String.Format("insert into [dbo].[user](uname,upw,uban,uphone,uemail,uredate) values('{0}','{1}','{2}','{3}','{4}','{5}')", text_un.Text, text_pw.Text, 0, text_phone.Text, text_email.Text, DateTime.Now.ToShortDateString().ToString());
SqlCommand cmd = new SqlCommand(newuser, conn);
int j = cmd.ExecuteNonQuery();
if (j > 0)
{
MessageBox.Show("Welcome");
this.DialogResult = DialogResult.Retry;
conn.Close();
login form = new login();
form.Show();
this.Hide();
}
}
}
label_code.Text = randomcode.code();
text_code.Text = "";
button_submit.Enabled = false;
}