columnsorter.cs

来自「一个抓包工具」· CS 代码 · 共 72 行

using System;
using System.Windows.Forms;
using System.ComponentModel;
using System.Collections;

namespace MyClasses
{

	public class ColumnSorter : IComparer
	{
		public int CurrentColumn = 0; // Colun index to be sorted
		public int Direction = 0; // 0 : Ascending, 1 : Descending
		public int ColumnType = 0; // 0 : Integer , 1 : Double , 2 : String
		public bool CaseSensitivity = true;

		public int Compare(object x, object y)
		{
			int CurValue1 = 0, CurValue2 = 0;
			double DCurValue1 = 0.0, DCurValue2 = 0.0;

			ListViewItem rowA = (ListViewItem)x;
			ListViewItem rowB = (ListViewItem)y;

			if( ColumnType <= 0 )
			{
				CurValue1 = int.Parse( rowA.SubItems[CurrentColumn].Text );
				CurValue2 = int.Parse( rowB.SubItems[CurrentColumn].Text );
				if( Direction == 0 )
				{ 
					if( CurValue1 < CurValue2 ) return -1;
					if( CurValue1 == CurValue2 ) return 0;
					return 1;
				}
				else
				{
					if( CurValue1 < CurValue2 ) return 1;
					if( CurValue1 == CurValue2 ) return 0;
					return -1;
				}
			}
			else if( ColumnType == 1 )
			{
				DCurValue1 = double.Parse( rowA.SubItems[CurrentColumn].Text );
				DCurValue2 = double.Parse( rowB.SubItems[CurrentColumn].Text );

				if( Direction == 0 )
				{
					if( DCurValue1 < DCurValue2 ) return -1;
					if( DCurValue1 == DCurValue2 ) return 0;
					return 1;
				}
				else
				{
					if( DCurValue1 < DCurValue2 ) return 1;
					if( DCurValue1 == DCurValue2 ) return 0;
					return -1;
				}
			}
				
			if( Direction == 0 )
				return String.Compare( rowA.SubItems[CurrentColumn].Text , rowB.SubItems[CurrentColumn].Text , CaseSensitivity );

			return ( -1 * String.Compare( rowA.SubItems[CurrentColumn].Text , rowB.SubItems[CurrentColumn].Text , CaseSensitivity ) );
		}
	
		public ColumnSorter()
		{

		}
	}
}