passing parameters via function

Question

I'm making a C# airlines reservation project, taking the user details via form1, say I have a class PassengerDetails with class variables. Now, on click of the button, I need to assign all those TextBox values to the class variables

private void btnSubmit_Click(object sender, EventArgs e)
{
    string fn = txtFname.Text;
    string ln = txtLname.Text;
    string add = txtAddress.Text;
    int age =   int.Parse(txtAge.Text);
    submit(fn, ln, add, age);
}

I need to pass these to the function. How should I declare it?

Please use better variable names. fn and ln don't say much, and add is plain misleading. What's wrong with firstname, lastname and address? Intellisense will type it for you after the first time. — CodesInChaos
– CodesInChaos, Commented Jun 22, 2011 at 7:05

Anthony Faull · Accepted Answer · 2011-06-22 06:34:18Z

2

Create a class for passenger data and pass this as a parameter.

class Passenger
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Address { get; set; }
    public int Age { get; set; }
}

private void AddButton_Click(object sender, EventArgs e)
{
    var passenger = new Passenger
                        {
                            FirstName = txtFname.Text,
                            LastName = txtLname.Text,
                            Address = txtAdd.Text,
                            Age = int.Parse(txtAge.Text)
                        };
    AddPassenger(passenger);
}

edited Jun 22, 2011 at 6:34

answered Jan 14, 2010 at 10:40

Anthony Faull

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Comments

Graviton · Accepted Answer · 2010-01-14 06:40:08Z

0

Can't you just make a simple assignment?

public class MyClass
{
  public string fn;
  public string ln;
 public string add;
  public int age;
}

the submit function is

submit(string fn, string ln, string add, int age)
{
  MyClass myclass = new MyClass();
  myclass.fn = fn;
  myclass.ln = ln;
  myclass.add=add;
  mycalss.age = age;
}

answered Jan 14, 2010 at 6:40

Graviton

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Comments

Soviut · Accepted Answer · 2010-01-14 06:41:20Z

0

You would have a form-level variable that stores an instance of your passenger details class can call that:

Note: pseudo code! Do not copy and paste!

class form1()
{
    private passenger_details = new PassengerDetail()

    private void button_click()
    {
        passenger_details.age = int(nameField.Text);
    }
}

answered Jan 14, 2010 at 6:41

Soviut

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Comments

Joel Etherton · Accepted Answer · 2010-01-14 17:22:09Z

You could also overload your constructor:

class Passenger
{
     public string FirstName { get; set; }
     public string LastName { get; set; }
     public string Address { get; set; }
     public int Age { get; set; }

     void Passenger() {}

     void Passenger(string _firstName, string _lastName, string _address, int _age) 
     {
          this.FirstName = _firstName;
          this.LastName = _lastName;
          this.Address = _address;
          this.Age = _age; 
     }
}

Then your event would just assign them at creation. (following code assumes you have a global variable called MyPassenger)

private void btnSubmit_Click(object sender, EventArgs e)  
{  
    this.MyPassenger = new Passenger(txtFname.Text, txtLname.Text, txtAddress.Text, int.Parse(txtAge.Text));     

}

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