groupitemconverter.cs

来自「使用C#语言开发的远程监控管理平台；使用soaphead对webservice进」· CS 代码 · 共 41 行

using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Globalization;
using System.Reflection;

namespace IssueVision
{
	// Used with the Visual Studio property browser so group items
	// can be specified at design time.
	public class GroupItemConverter : ExpandableObjectConverter
	{
		public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
		{
			if (destinationType == typeof(InstanceDescriptor))
			{
				return true;
			}
			else
			{
				return base.CanConvertTo(context, destinationType);
			}
		}

		public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
		{
			if (destinationType == typeof(InstanceDescriptor))
			{
				GroupItem item = (GroupItem)value;
				ConstructorInfo ci = typeof(GroupItem).GetConstructor(new Type[]{typeof(string), typeof(string)});
				return new InstanceDescriptor(ci, new object[]{item.GroupTitle, item.RowFilter});
			}
			else
			{
				return base.ConvertTo(context, culture, value, destinationType);
			}
		}
	}
}