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

namespace ApplicationSettingsSample {
  partial class UpdateSettingForm : Form {
    public UpdateSettingForm() {
      InitializeComponent();
    }

    private void UpdateSettingForm_Load(object sender, EventArgs e) {
      // Handle SettingChanging event
      Properties.Settings.Default.SettingChanging += Default_SettingChanging;
      // Handle PropertyChanged event
      Properties.Settings.Default.PropertyChanged += Default_PropertyChanged;
      // Get setting value
      this.settingTextBox.Text = Properties.Settings.Default.HighScore.ToString();
    }

    private void updateSettingButton_Click(object sender, EventArgs e) {
      // Attempt to set value
      // Note: when this line is called, the SettingChanging
      //       event is fired
      
      Properties.Settings.Default.HighScore = int.Parse(this.settingTextBox.Text);
    }

    void Default_SettingChanging(object sender, SettingChangingEventArgs e) {
      // Validate HighScore
      if( e.SettingName == "HighScore" ) {
        if( ((int)e.NewValue) < 0 ) {
          MessageBox.Show("HighScore can't be less than 0.");
          e.Cancel = true;
        }
      }
    }

    void Default_PropertyChanged(object sender, PropertyChangedEventArgs e) {
      MessageBox.Show("Woohoo! " + e.PropertyName + " was changed.");
    }
  }
}