using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.IO;
using System.Text;
class DialogValid : System.Windows.Forms.Form
{
private Button okButton;
private Button cancelButton;
private NumericUpDown num;
public decimal Num {
get { return num.Value; }
set { num.Value = value; }
}
void OnValidating(Object sender, CancelEventArgs e)
{
MessageBox.Show("NumericUpDown is validating");
}
void OnValid(Object sender,EventArgs e)
{
MessageBox.Show("NumericUpDown is valid");
}
public DialogValid()
{
Size = new Size(400,100);
FormBorderStyle = FormBorderStyle.FixedDialog;
Text = "Dialog test";
okButton = new Button();
okButton.DialogResult = DialogResult.OK;
okButton.Location = new Point(20,28);
okButton.Size = new Size(80,25);
okButton.Text = "OK";
Controls.Add(okButton);
cancelButton = new Button();
cancelButton.Location = new Point(300,28);
cancelButton.Size = new Size(80,25);
cancelButton.Text = "Cancel";
cancelButton.DialogResult = DialogResult.Cancel;
Controls.Add(cancelButton);
Label l = new Label();
l.Text = "NumericUpDown";
l.Location = new Point(20,5);
l.Size = new Size(120,25);
Controls.Add(l);
num = new NumericUpDown();
num.Location = new Point(140,5);
num.Size = new Size(80,25);
num.Minimum = (decimal)10.0;
num.Maximum = (decimal)100.0;
num.Value = (decimal)10.0;
num.Validating+=new CancelEventHandler(OnValidating);
num.Validated+=new EventHandler(OnValid);
Controls.Add(num);
}
}
public class NumericUpDownValidationEvent{
public static void Main()
{
DialogValid dlg = new DialogValid();
DialogResult r = dlg.ShowDialog();
Console.WriteLine(dlg.Num);
}
}