Question

I’m trying make an input box pop up asking the user for a password similar to messagebox.show. But I want the user to be able to type into the box so I can use the return data to validate.

The system will check if the user has been authenticated if not it will request authentication via pop up.

Answer 1

What you need to do, assuming you are in WinForms, is create a new form, add a textbox and button to it, then call it if it is not authenticated.

public partial class Form1
{
    public void Main()
    {
    bool authenticated = ...

    if(!authenticated)
    {
       Your_Form newForm = new Your_Form();
       newForm.Show(this);
       string password = newForm.Password;
       if(password != "")
           ...
    }
    }
    }

public class Your_Form
{
public TextBox textBox1 = new TextBox();
// ...
public string Password = "";

private void button1_Click(object sender, EventArgs e)
{
   this.Password = textBox1.Text;
}
// ...
}