undo.cs

Freetextbox是优秀的在线编辑器

namespace FreeTextBoxControls
{
    using System;

    public class Undo : ToolbarButton
    {
        public Undo() : base("Undo", "undo")
        {
            base.isBuiltIn = true;
            base.htmlModeEnabled = false;
            base.BuiltInButtonOffset = 0x26;
            base.CommandIdentifier = "undo";
            base.builtInScript = "this.ftb.Undo();";
            base.builtInEnabledScript = "this.disabled=!this.ftb.CanUndo();";
            base.className = "Undo";
        }

    }
}