private void btnlogin_Click(object sender, EventArgs e)
{
if (txtuser.Text != "" && txtpass.Text != "")
{
var usercheck = db.Randoms.Where(c => c.ID == 1).FirstOrDefault();
var passcheck = db.Randoms.Where(c => c.ID == 2).FirstOrDefault();
if (usercheck != null)
{
if (txtuser.Text == ClsTripleDES.LicDecrypt(usercheck.Text) && txtpass.Text == ClsTripleDES.LicDecrypt(passcheck.Text))
{
this.Hide();
FormDashboard dsh = new FormDashboard();
dsh.Show();
}
else
{
MessageBox.Show("Invalid Credientials!", "License Management", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
else
{
MessageBox.Show("Enter your Credientials!", "License Management", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void btnBrowse_Click(object sender, EventArgs e)
{
openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "license files (*.lic)|*.lic";
DialogResult dialogResult = openFileDialog.ShowDialog();
if (dialogResult == DialogResult.OK)
{
filepath = openFileDialog.FileName;
txtfilename.Text = Path.GetFileName(filepath);
string[] lines = File.ReadAllLines(filepath);
var arr = lines[7].Split(':');
string dec = ClsTripleDES.DataDecrypt(arr[1].ToString());
var licArr = dec.Split(',');
txtofflicstarts.Text = licArr[0];
txtofflicends.Text = licArr[1];
txtoffsoftId.Text = licArr[2];
txtoffownername.Text = licArr[3];
txtoffschoolname.Text = licArr[4];
done = true;
}
}
public void UpdrageOffline()
{
if (MasterConfirm.Show() == DialogResult.OK)
{
string[] lines = File.ReadAllLines(filepath);
string licHash = DateTime.Now.ToString("dd/MM/yyyy") + "," + licends + "," + txtoffsoftId.Text.Substring(0, 18) + "," + txtoffownername.Text + "," + txtoffschoolname.Text + "," + "False";
lines[7] = "License Hash:" + ClsTripleDES.DataEncrypt(licHash);
File.WriteAllLines(filepath, lines);
MessageBox.Show("Program Updated Successfully until " + licends + "!", "License Management System", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
txtofflicstarts.Text = "";
txtofflicends.Text = "";
txtoffsoftId.Text = "";
txtoffownername.Text = "";
txtoffschoolname.Text = "";
txtfilename.Text = "";
done = false;
txtoffdays.Text = "";
txtoffmonths.Text = "";
txtoffdays.Text = "";
if (openFileDialog.FileName != null)
{
openFileDialog.Dispose();
}
}
}
private void btnValidate_Click(object sender, EventArgs e)
{
var MasPas = db.Randoms.Where(c => c.ID == 3).FirstOrDefault();
string fdec = ClsTripleDES.LicDecrypt(MasPas.Text.ToString());
string Dec = ClsTripleDES.DataDecrypt(fdec);
if (txtpass.Text == Dec)
{
btnValidate.DialogResult = DialogResult.OK;
labelresult.Text = "Validated!";
labelresult.ForeColor = Color.Green;
labelresult.Visible = true;
}
else
{
btnValidate.DialogResult = DialogResult.Cancel;
labelresult.Text = "Not Validated!";
labelresult.ForeColor = Color.Red;
labelresult.Visible = true;
}
}
