*.Open() works with Windows Auth, but not SQL Auth. Credentials correct.

private void loginButton_Click(object sender, RoutedEventArgs e)
{
//1.Address of SQL server and database

//////////string connString = @"Data Source=(LocalDB)\MSSQLLocalDB;Initial Catalog=VisualUI_DB.mdf;User ID=[Redacted];Password=[Redacted];Connect Timeout=30"; << DOESNT WORK

string connString = @"Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=C:\Users[Redacted]\ [Redacted]\ [Redacted]\Database_VisualUI_Practice\Database_VisualUI_Practice\VisualUI_DB.mdf;Integrated Security=True;Connect Timeout=30"; // DOES WORK

// 2. Establish connection
using (SqlConnection conn = new SqlConnection(connString))
{
// 3. Open connection
conn.Open();

// 4. Prepare query
string Email = emailText.Text, Pw = passwordText.Text;
string query = "SELECT * FROM Users WHERE Email = '" + Email.Trim() + "' AND Password = '" + Pw.Trim() + "'";

// 5. Execute query
SqlCommand cmd = new SqlCommand(query, conn);

SqlDataReader reader = cmd.ExecuteReader();
if (reader.Read() == true)
{
UserDashboard page = new UserDashboard();
WPFUtils.SwitchToNewWindow(this, page);
}
else
{
MessageBox.Show("Your email and/or password are incorrect. Try again.");
}

// 6. Close Connection
conn.Close();
}
}