Alright. So I'm fairly new to C#. What i've down thus far is create the beginnings of my program:

            using System;

using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace WindowsFormsApplication1
{
public partial class BirdNumber : Form
{
public BirdNumber()
{
InitializeComponent();
}

    private void BirdNumber_TextChanged(object sender, EventArgs e)
    {


    }

    private void SessionNumber_TextChanged(object sender, EventArgs e)
    {


    }

    private void dateTimePicker_ValueChanged(object sender, EventArgs e)
    {

    }

    private void Habituation_CheckedChanged(object sender, EventArgs e)
    {

    }

    private void Autoshaping_CheckedChanged(object sender, EventArgs e)
    {

    }

    private void TITraining_CheckedChanged(object sender, EventArgs e)
    {

    }

    private void TITesting_CheckedChanged(object sender, EventArgs e)
    {

    }

    private void StartButton_Click(object sender, EventArgs e)
    {



}


}

}

What I want to do is have the StartButton, when clicked is record which radiobutton was clicked as well as data from the 3 text boxes into a textfile.

I've googled many possible answers, but none of them seem to do all that I want. Any suggests?

I can provide more code if necessary, but it would just be the form.designer.cs code.

`

But what you will find when you Google are answers that handle part of what you are trying to achieve. Break it down into the steps:
Determine which radio button is clicked
read data from a control (your textbooks)
write to file

Each of these things can easily be googled and then put together to give you your complete answer.

This article has been dead for over six months. Start a new discussion instead.