public int Age{get;set;}

    public class Person{private string strName;private int intAge;public string StrName{get { return strName; }set { strName = value; }}public int IntAge{get { return intAge; }set { intAge = value; }}}

        private Person person;public Person Person{get { return person; }set { person = value; }}

代码public class PersonConverter:TypeConverter{//指示我们设置的内容能否转换//因为我们输入的是“zhangsan,12”的字符串形式，所以这里接受字符串类型的转换public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType){return sourceType == typeof(string) || base.CanConvertFrom(context, sourceType);}//这个方法指示了最后的这个复杂属性是以什么形式表现出来的。//如果destinationType == typeof(string)的话，最后person显示的就是"zhangsan,21"的形式//如果destinationType == typeof(InstanceDescriptor)的话，person显示的就是"WindowsFormsControlLibrary1.Person"类名的形式。public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType){if (destinationType == typeof(string)){return true;}if (destinationType == typeof(InstanceDescriptor)){return true;}return base.CanConvertTo(context, destinationType);}//这个方法实现了我们输入的字符串如何被转化为person类型public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value){if (value is string){String[] v = ((String)value).Split(',');if (v.GetLength(0) != 2){throw new ArgumentException("Invalid parameter format");}Person csf = new Person { Name = Convert.ToString(v[0]), Age = Convert.ToInt32(v[1]) };return csf;}return base.ConvertFrom(context, culture, value);}//这个则是实现了具体如何显示person这个属性的方法public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType){if (destinationType == typeof(String)){Person scope = (Person)value;String result = scope.Name.ToString() + "," + scope.Age.ToString();return result;}if (destinationType == typeof(InstanceDescriptor)){ConstructorInfo ci = typeof(Person).GetConstructor(new Type[] { typeof(string), typeof(Int32) });Person scope = (Person)value;return new InstanceDescriptor(ci, new object[] { scope.Name, scope.Age });}return base.ConvertTo(context, culture, value, destinationType);}//以下两个方法提供子属性单独设置的能力。public override bool GetPropertiesSupported(ITypeDescriptorContext context){return true;}public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes){return TypeDescriptor.GetProperties(typeof(Person), attributes);}}

        [TypeConverter(typeof(PersonConverter))]public Person Person{get;set;}

代码private Person _person;public PersonWindow(Person person){InitializeComponent();Person = person;textBox1.Text = person.StrName;textBox2.Text = person.IntAge.ToString();}public Person Person{get { return _person; }set { _person = value; }}/// <summary>/// 确认按钮/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void button1_Click(object sender, EventArgs e){Person.StrName = textBox1.Text;Person.IntAge = int.Parse(textBox2.Text);}

代码public override System.Drawing.Design.UITypeEditorEditStyle GetEditStyle(System.ComponentModel.ITypeDescriptorContext context){//指示以什么样的形式打开编辑窗体return UITypeEditorEditStyle.Modal;}//属性编辑方法，当我们单击属性窗口中的属性按钮时会执行这个方法。public override object EditValue(System.ComponentModel.ITypeDescriptorContext context, IServiceProvider provider, object value){//获取服务对象，这个对象专门为winform编辑器提供一些功能IWindowsFormsEditorService service =(IWindowsFormsEditorService) provider.GetService(typeof (IWindowsFormsEditorService));if (service==null){return null;}Person p = new Person();CategoryWindow form = new CategoryWindow(p);//这里知道为什么要设置confirm按钮的DialogResult属性的原因了吧。if (service.ShowDialog(form) == System.Windows.Forms.DialogResult.OK){return p;}return value; //系统会根据这个返回值在person属性里面进行填充}

        [Editor(typeof(CategoryModalEditor), typeof(UITypeEditor))]public Person Person{get { return person; }set { person = value; }}