private void Clear_Click(object sender, EventArgs e)
{
Database_Example example = new Database_Example();
example.Show();
this.Hide();
}
private void Delete_Click(object sender, EventArgs e)
{
Database_Example example = new Database_Example();
connection.Open();
SqlCommand command = new SqlCommand();
command.Connection = connection;
command.CommandText = "Select * from Account where ID= '" + ID.Text.Trim() + "' ";
SqlDataReader dataReader = command.ExecuteReader();
if (ID.Text.Trim() == "001")
{
MessageBox.Show("Admin cannot remove");
ID.Focus();
}
else if (dataReader.Read())
{
command.CommandText = "Delete from Account where ID='" + ID.Text.Trim() + "'";
dataReader.Close();
command.ExecuteNonQuery();
MessageBox.Show("Deleted");
example.Show();
this.Hide();
}
else
{
MessageBox.Show("Invaid ID ");
}
connection.Close();
}
private void Save_Click(object sender, EventArgs e)
{
Database_Example example = new Database_Example();
byte[] data = UTF8Encoding.UTF8.GetBytes(PasswordBox.Text);
using (MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider())
{
byte[] keys = md5.ComputeHash(UTF8Encoding.UTF8.GetBytes(hash));
using (TripleDESCryptoServiceProvider tps = new TripleDESCryptoServiceProvider()
{
Key = keys,
Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7
})
{
ICryptoTransform trans = tps.CreateEncryptor();
byte[] result = trans.TransformFinalBlock(data, 0, data.Length);
password = Convert.ToBase64String(result, 0, result.Length);
}
}
if (isvalid())
{
connection.Open();
SqlCommand command = new SqlCommand();
command.Connection = connection;
command.CommandText = "SELECT * FROM Account WHERE ID='" + ID.Text.Trim() + "'";
SqlDataReader dataReader = command.ExecuteReader();
if (dataReader.Read())
{
MessageBox.Show("ID available", "Error");
ID.Focus();
connection.Close();
}
else
{
SqlCommand command2 = new SqlCommand();
command2.CommandText = "Insert into Account values ('" + Name.Text.Trim() + "','" + ID.Text.Trim()
+ "','" + Mobile.Text.Trim() + "','" + Post.Text.Trim() + "','" + Username.Text.Trim() + "','" +
password.Trim() + "','" + "A" + "')";
SqlDataAdapter dataAdapter = new SqlDataAdapter(command2.CommandText, connection.ConnectionString);
DataTable dt = new DataTable();
dataAdapter.Fill(dt);
MessageBox.Show("Successfully Saved");
connection.Close();
example.Show();
this.Hide();
}
}
}
private void Search_Click(object sender, EventArgs e)
{
Database_Example example = new Database_Example();
connection.Open();
SqlCommand command = new SqlCommand();
command.Connection = connection;
if (ID.Text.Trim() != string.Empty)
{
command.CommandText = "Select * from Account where ID= '" + ID.Text.Trim() + "' ";
SqlDataReader dataReader = command.ExecuteReader();
if (dataReader.Read())
{
Name.Text = dataReader.GetString(0).Trim();
string cons2 = dataReader.GetString(2).Trim();
string cons3 = dataReader.GetString(3).Trim();
string cons4 = dataReader.GetString(4).Trim();
string cons5 = dataReader.GetString(5).Trim();
string cons6 = dataReader.GetString(6).Trim();
Mobile.Text = cons2;
Post.Text = cons3;
Username.Text = cons4;
PasswordBox.Text = cons5;
dataReader.Close();
}
else
{
dataReader.Close();
MessageBox.Show("Invalid Data");
this.Hide();
example.Show();
Name.Focus();
}
}
else
{
MessageBox.Show("Invalid Data");
this.Hide();
example.Show();
Name.Focus();
}
connection.Close();
}
private void Update_Click(object sender, EventArgs e)
{
Database_Example example = new Database_Example();
byte[] data = UTF8Encoding.UTF8.GetBytes(PasswordBox.Text);
using (MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider())
{
byte[] keys = md5.ComputeHash(UTF8Encoding.UTF8.GetBytes(hash));
using (TripleDESCryptoServiceProvider tps = new TripleDESCryptoServiceProvider()
{
Key = keys,
Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7
})
{
ICryptoTransform trans = tps.CreateEncryptor();
byte[] result = trans.TransformFinalBlock(data, 0, data.Length);
password = Convert.ToBase64String(result, 0, result.Length);
}
}
if (isvalid())
{
connection.Open();
SqlCommand command = new SqlCommand();
command.Connection = connection;
command.CommandText = "SELECT * FROM Account WHERE ID='" + ID.Text.Trim() + "'";
SqlDataReader dataReader = command.ExecuteReader();
if (dataReader.Read())
{
command.CommandText = "UPDATE Account SET Name='" + Name.Text.Trim() + "',Mobile='"
+ Mobile.Text.Trim() + "',Post='" + Post.Text.Trim() + "',UserName='******',Password='******',Type='" + "A" + "' WHERE ID='" + ID.Text.Trim() + "' ";
dataReader.Close();
command.ExecuteNonQuery();
MessageBox.Show("Updated");
this.Hide();
example.Show();
}
else
{
MessageBox.Show("Invaid ID", "Error");
}
connection.Close();
}
}
