listviewitemicon.cs

基于ehotgis嵌入式gis平台的图层控制源码

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace LayerControl
{
    class ListViewItemIcon
    {
        ListView listView;
        public ListViewItemIcon(ListView listView)
        {
            this.listView = listView;
            SendMessage(listView.Handle, LVM_SETEXTENDEDLISTVIEWSTYLE, (IntPtr)LVS_EX_SUBITEMIMAGES, (IntPtr)LVS_EX_SUBITEMIMAGES);

        }
        public void SetItemImage(int rowIndex,int columnIndex, int imageIndex)
        {
            
            //Make sure that we have handle of the header
            if (listView.Handle == IntPtr.Zero)
                throw new Exception("Handle of header does not exist.");
            //Create HDITEM and populate with values
            LV_ITEM lvi = new LV_ITEM();
            // Row of the item
            lvi.iItem = rowIndex;
            // Column of the item
            lvi.iSubItem = columnIndex;
            lvi.mask = LVIF_IMAGE;
            lvi.iImage = imageIndex;
            lvi.state = 0;
            lvi.stateMask = 0;
            lvi.lParam = (IntPtr)0;

            //lvi.pszText = Marshal.StringToBSTR("5"); 
            //Sending HDM_SETITEM message
            SendMessage(listView.Handle, LVM_SETITEMW, (IntPtr)0, ref lvi);
        }
        
        struct LV_ITEM
        {
            public uint mask;
            public int iItem;
            public int iSubItem;
            public uint state;
            public uint stateMask;
            public IntPtr pszText;
            public int cchTextMax;
            public int iImage;
            public IntPtr lParam;
            public int iIndent;
        }
        [DllImport("coredll.dll")]
        static extern int SendMessage(
            IntPtr hWnd,	// handle to destination window 
            uint Msg,		// message 
            IntPtr wParam,	// first message parameter 
            IntPtr lParam	// second message parameter 
            );

        [DllImport("coredll.dll")]
        static extern bool SendMessage(
            IntPtr hWnd,		// handle to destination window 
            uint msg,			// message 
            IntPtr wParam,
            ref LV_ITEM lParam);// pointer to struct of LV_ITEM

        public const Int32 LVM_FIRST = 0x1000;
        public const Int32 LVM_GETITEM = LVM_FIRST + 5;
        public const Int32 LVM_SETITEM = LVM_FIRST + 6;
        public const Int32 LVIF_TEXT = 0x0001;
        public const Int32 LVIF_IMAGE = 0x0002;
        //public const Int32 LVM_SETEXTENDEDLISTVIEWSTYLE =(LVM_FIRST + 54);
        public const int LVW_FIRST = 0x1000;
        //public const int LVM_GETEXTENDEDLISTVIEWSTYLE = LVW_FIRST + 54;
        public const int LVM_GETHEADER = (LVM_FIRST + 31);
        public const int LVM_SETICONSPACING = (LVM_FIRST + 53);
        public const int LVM_GETSUBITEMRECT = (LVM_FIRST + 56);
        public const int LVM_GETITEMSTATE = (LVM_FIRST + 44);
        public const int LVM_GETITEMTEXTW = (LVM_FIRST + 115);
        public const int LVM_INSERTITEMA = (LVM_FIRST + 7);
        public const int LVM_INSERTITEMW = (LVM_FIRST + 77);
        public const int LVM_INSERTCOLUMNA = (LVM_FIRST + 27);
        public const int LVM_INSERTCOLUMNW = (LVM_FIRST + 97);
        public const int LVM_DELETECOLUMN = (LVM_FIRST + 28);
        public const int LVM_GETCOLUMNA = (LVM_FIRST + 25);
        public const int LVM_GETCOLUMNW = (LVM_FIRST + 95);
        public const int LVM_SETEXTENDEDLISTVIEWSTYLE = (LVM_FIRST + 54);
        public const int LVM_SETITEMA = (LVM_FIRST + 6);
        public const int LVM_SETITEMW = (LVM_FIRST + 76);
        public const int LVM_EDITLABELA = (LVM_FIRST + 23);
        public const int LVM_EDITLABELW = (LVM_FIRST + 118);
        public const int LVM_DELETEITEM = (LVM_FIRST + 8);
        public const int LVM_SETBKCOLOR = (LVM_FIRST + 1);
        public const int LVM_GETBKCOLOR = (LVM_FIRST + 0);
        public const int LVM_GETTEXTBKCOLOR = (LVM_FIRST + 37);
        public const int LVM_SETTEXTBKCOLOR = (LVM_FIRST + 38);
        public const int LVM_DELETEALLITEMS = (LVM_FIRST + 9);
        public const int LVM_GETNEXTITEM = (LVM_FIRST + 12);
        public const int LVM_SETITEMCOUNT = (LVM_FIRST + 47);
        public const int LVM_GETITEMCOUNT = (LVM_FIRST + 4);
        public const int LVM_SETCOLUMNWIDTH = (LVM_FIRST + 30);
        public const int LVM_GETITEMRECT = (LVM_FIRST + 14);
        public const int LVM_EDITLABEL = (LVM_FIRST + 23);

        public const int LVS_EX_GRIDLINES = 0x00000001;
        public const int LVS_EX_SUBITEMIMAGES = 0x00000002;
        public const int LVS_EX_CHECKBOXES = 0x00000004;
        public const int LVS_EX_TRACKSELECT = 0x00000008;
        public const int LVS_EX_HEADERDRAGDROP = 0x00000010;
        public const int LVS_EX_FULLROWSELECT = 0x00000020; // applies to report mode only
        public const int LVS_EX_ONECLICKACTIVATE = 0x00000040;
    }
}