Getting Started With Object Databases

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

namespace oodb_gettingstarted
{
    public partial class frmPerson : Form
    {
        DataLayer m_DataLayer = new DataLayer( "testdb.yap" );

        public frmPerson()
        {
            InitializeComponent();
        }

        private void buttonSave_Click( object sender, EventArgs e )
        {
            Person p        = new Person( this.nameTextBox.Text );
            p.Age           = this.ageTextBox.Text.Length > 0 ? int.Parse( this.ageTextBox.Text ) : 0;
            this.m_DataLayer.Save( p );
            this.AddPerson( p );
            this.nameTextBox.Text = this.ageTextBox.Text = null;
        }

        /// <summary>
        /// Add's a person object to the data grid
        /// </summary>
        /// <param name="p"></param>
        private void AddPerson( Person p )
        {
            int newRow = this.peopleGrid.Rows.Add();

            this.peopleGrid.Rows [newRow].Cells ["PersonName"].Value = p.Name;
            this.peopleGrid.Rows [newRow].Cells ["Age"].Value = p.Age;
        }

        private void frmPersons_Load( object sender, EventArgs e )
        {
            foreach ( Person p in this.m_DataLayer.Get() )
            {
                this.AddPerson( p );
            }
        }

        private void frmPerson_FormClosing( object sender, FormClosingEventArgs e )
        {
            this.m_DataLayer.Close();
        }

        private void buttonFindPerson_Click( object sender, EventArgs e )
        {
            IList<Person> people = this.m_DataLayer.Get( new Person( this.textBoxFind.Text ) );
            //IList<int> rows      = new List<int>();

            foreach ( Person p in people )
            {
                foreach ( DataGridViewRow row in this.peopleGrid.Rows )
                {
                    if ( row.Cells ["PersonName"].Value != null && row.Cells ["PersonName"].Value.Equals( p.Name ) )
                    {
                        row.Selected = row.Cells ["PersonName"].Selected = true;
                    }
                    else
                    {
                        row.Selected = row.Cells ["PersonName"].Selected = false;
                    }
                }
            }
        }
    }
}