public async static Task <CUser> Retrieve(Int32 id) // overload #1
{
CUser ret = null;
try
{
String sql = "SELECT * FROM `user` WHERE `id` = @id";
MySqlCommand cmd = new MySqlCommand(sql, Program.conn);
cmd.Parameters.AddWithValue("@id", id);
DbDataReader reader = await cmd.ExecuteReaderAsync();
cmd.Dispose();
if (!(await reader.ReadAsync()))
{
if (!reader.IsClosed)
{
reader.Close();
}
CUtils.LastLogMsg = "User with id '" + id + "' not found!";
return(ret);
}
ret = new CUser(id,
reader.GetString(reader.GetOrdinal("username")),
reader.GetString(reader.GetOrdinal("password")),
reader.GetString(reader.GetOrdinal("email")),
reader.GetByte(reader.GetOrdinal("type")),
(await reader.IsDBNullAsync(reader.GetOrdinal("status"))) ? (Byte)0 : reader.GetByte(reader.GetOrdinal("status")));
if (!reader.IsClosed)
{
reader.Close();
}
CUtils.LastLogMsg = null;
}
catch (Exception ex)
{
#if DEBUG
Console.WriteLine(ex.Message + " " + ex.StackTrace);
#endif
CUtils.LastLogMsg = "Unahandled Exception!";
}
return(ret);
}
private async void button_Submit_Click(object sender, EventArgs e)
{
// Get & Validate Username
String username = textBox_Username.Text.Trim();
if (!CUtils.IsValidUsername(username))
{
if (CUtils.LastLogMsg != null)
{
MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Cause: Invalid Username!", "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return;
}
// Get & Validate Password
String password = textBox_Password.Text.Trim();
if (!CUtils.IsValidPassword(password))
{
if (CUtils.LastLogMsg != null)
{
MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Cause: Invalid Password!", "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return;
}
password = CUtils.sha256(password);
// Get & Validate Account/User Type
Byte type = (Byte)comboBox_Account.SelectedIndex;
if (!(await CUtils.IsValidUserType(type)))
{
if (CUtils.LastLogMsg != null)
{
MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Cause: Invalid Account Type!", "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return;
}
// Get & Validate EmailID
String email = textBox_EmailID.Text.Trim();
if (!CUtils.IsValidEmail(email))
{
if (CUtils.LastLogMsg != null)
{
MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Cause: Invalid Email!", "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return;
}
// Register User
if (!(await CUser.Register(username, password, email, type)))
{
if (CUtils.LastLogMsg != null)
{
MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Cause: Unknown", "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return;
}
MessageBox.Show("You have Successfully Registered!", "Success!", MessageBoxButtons.OK, MessageBoxIcon.Information);
prev.StartPosition = this.StartPosition;
prev.Location = this.Location;
prev.Visible = true;
this.Close();
this.Dispose();
}
private async void button_Submit_Click(object sender, EventArgs e)
{
// Get & Validate Username
String username = textBox_Username.Text.Trim();
if (!CUtils.IsValidUsername(username))
{
if (CUtils.LastLogMsg != null)
{
MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Cause: Invalid Username!", "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return;
}
// Get & Validate Password
String password = textBox_Password.Text.Trim();
if (!CUtils.IsValidPassword(password))
{
if (CUtils.LastLogMsg != null)
{
MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Cause: Invalid Password!", "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return;
}
password = CUtils.sha256(password);
// Get & Validate Account/User Type
Byte type = (Byte)comboBox_Account.SelectedIndex;
if (!(await CUtils.IsValidUserType(type)))
{
if (CUtils.LastLogMsg != null)
{
MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Cause: Invalid Account Type!", "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return;
}
// Login User
CUser.cur_user = await CUser.Retrieve(username, password, type);
if (CUser.cur_user == null)
{
if (CUtils.LastLogMsg != null)
{
MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Cause: Unknown", "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return;
}
/*if (!(await CUser.cur_user.login()))
* {
* if (CUtils.LastLogMsg != null)
* MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
* else
* MessageBox.Show("Cause: " + CUtils.LastLogMsg, "Failed!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
* return;
* }*/
MessageBox.Show("You have Successfully Logged In!" + type, "Success!", MessageBoxButtons.OK, MessageBoxIcon.Information);
switch (type)
{
case 0: new Customer_Home(this).Visible = true; break;
case 1: new Seller_Home(this).Visible = true; break;
//case 2: new OrderManager_Home(this).Visible = true; break;
//case 3: new ProductManager_Home(this).Visible = true; break;
}
this.Visible = false;
}
