private void SignUpBtnClick()
{
string username = tbUserName.Text;
string password = tbPassword.Text;
string passwordRepeat = tbPasswordRepeat.Text;
string query = "SELECT * FROM loginTable WHERE username = '******'";
if (tbUserName.Text.Length > 0 && tbPassword.Text.Length > 0)
{
if (dbHandler.RowExist(query) == false)
{
if (password == passwordRepeat)
{
dbHandler.Insert("INSERT INTO loginTable (username, password) VALUES ('" + username + "', '" + password + "')");
MessageBox.Show("User successfully registered!", "Notification", MessageBoxButtons.OK, MessageBoxIcon.Information);
ProgramManager.getInstance().SwitchScreen(this, new Form1());
}
else
{
MessageBox.Show("Passwords aren't matching!", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
else
{
MessageBox.Show("Username already exists!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show("Please enter username or password!", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
public static ProgramManager getInstance()
{
if (instance == null)
{
instance = new ProgramManager();
}
return(instance);
}
private void login()
{
mDataSet = new DataSet();
string userName = tbUserName.Text;
string password = tbPassword.Text;
mDataSet = DbHandler.getInstance().Select("SELECT * FROM loginTable WHERE username = '******' AND password = '******'");
if (mDataSet.Tables[0].Rows.Count == 0)
{
MessageBox.Show("Wrong username or password!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
UserHelper.getInstance().userID = int.Parse(mDataSet.Tables[0].Rows[0][0].ToString());
ProgramManager.getInstance().SwitchScreen(this, new Dashboard());
}
}
private void btnBack_Click_1(object sender, EventArgs e)
{
ProgramManager.getInstance().SwitchScreen(this, new Form1());
}
private void btnX_Click(object sender, EventArgs e)
{
ProgramManager.getInstance().Exit();
}
private void btnCancel_Click(object sender, EventArgs e)
{
ProgramManager.getInstance().Close(this);
}
private void returnBooksToolStripMenuItem_Click(object sender, EventArgs e)
{
ProgramManager.getInstance().OpenScreen(new ReturnBookForm());
}
private void toolStripMenuItem1_Click(object sender, EventArgs e)
{
ProgramManager.getInstance().OpenScreen(new btnIssueBook());
}
private void viewStudentInfoToolStripMenuItem_Click(object sender, EventArgs e)
{
ProgramManager.getInstance().OpenScreen(new ViewStudentsForm());
}
private void addNewBookToolStripMenuItem_Click(object sender, EventArgs e)
{
ProgramManager.getInstance().OpenScreen(new AddBookForm());
}
private void logOutToolStripMenuItem_Click(object sender, EventArgs e)
{
ProgramManager.getInstance().LogOut(this, new Form1());
}
private void exitToolStripMenuItem_Click(object sender, EventArgs e)
{
ProgramManager.getInstance().Exit();
}
private void btnSignUp_Click(object sender, EventArgs e)
{
ProgramManager.getInstance().SwitchScreen(this, new SignUp());
}