editors.cs

来自「语音视频功能 里面实现了基本的QQ与语音对话」· CS 代码 · 共 84 行

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Windows.Forms;
using System.ComponentModel.Design.Serialization;
namespace gowk.controls
{
	/// <summary>
	/// GListViewItemCollectionEditor 的摘要说明。
	/// </summary>
	public class GListViewItemCollectionEditor :System.ComponentModel.Design.CollectionEditor
	{
		public GListViewItemCollectionEditor(Type type):base(type)
		{
		}
		protected override Type CreateCollectionItemType()
		{
			return typeof(GListViewItem);
		}
		protected override object CreateInstance(Type itemType)
		{
			return new GListViewItem();
		}
	}
	public class GListViewFolderCollectionEditor :System.ComponentModel.Design.CollectionEditor
	{
		public GListViewFolderCollectionEditor(Type type):base(type)
		{
		}
		protected override Type CreateCollectionItemType()
		{
			return typeof(GListViewFolder);
		}
		protected override object CreateInstance(Type itemType)
		{
			return new GListViewFolder();
		}
	}
	internal class  GListViewItemConverter : ExpandableObjectConverter 
	{ 

		public override bool CanConvertTo(System.ComponentModel.ITypeDescriptorContext context, System.Type destinationType) 
		{ 
			if (destinationType == typeof(InstanceDescriptor)) 
			{ 
				return true; 
			} 
			return base.CanConvertTo(context, destinationType); 
		} 

		public override object ConvertTo(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, System.Type destinationType) 
		{ 
			if (destinationType == typeof(InstanceDescriptor)) 
			{ 
				return new InstanceDescriptor(typeof( GListViewItem).GetConstructor(null),null,false);
			} 
			return base.ConvertTo(context, culture, value, destinationType); 
		} 
	}
	internal class  GListViewFolderConverter : ExpandableObjectConverter 
	{ 

		public override bool CanConvertTo(System.ComponentModel.ITypeDescriptorContext context, System.Type destinationType) 
		{ 
			if (destinationType == typeof(InstanceDescriptor)) 
			{ 
				return true; 
			} 
			return base.CanConvertTo(context, destinationType); 
		} 

		public override object ConvertTo(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, System.Type destinationType) 
		{ 
			if (destinationType == typeof(InstanceDescriptor)) 
			{ 
				return new InstanceDescriptor(typeof( GListViewFolder).GetConstructor(null),null,false);
			} 
			return base.ConvertTo(context, culture, value, destinationType); 
		} 
	}
}