How to access WithdrawChecking() in LoginForm inside MainTransactionForm
//in MainTransactionForm.Xaml.cs public partial class MainTransactionForm : Form { public MainTransactionForm() { InitializeComponent(); } private void withdrawButton_Click(object sender, EventArgs e) { LoginForm loginForm = new LoginForm(); loginForm.WithdrawChecking(); } } //in LoginForm.Xaml.cs class LoginForm { public void WithdrawChecking() { if(true) { MessageBox.Show("withdraw checking"); } } }