using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Linq; using System.Text; using System.Windows.Forms; namespace AirScout { public partial class PercentageControl : NumericUpDown { public PercentageControl() { InitializeComponent(); } protected override void UpdateEditText() { this.Text = Value.ToString("0%"); // base.UpdateEditText(); } } }