List-View 排序方案一

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List-View 排序方案一

最近需要解决List-View排序的问题，网上很多资料，却很少有说明使用条件的，所以程序调试出问题，查阅MSDN，有些心得，分享一下。

此排序方案适用条件：

仅使用于Common List-View, 而不支持Virtual List-View（或许需改进），即不支持Owner Data(窗口风格不支持LVS_OWNERDATA), 支持该风格的待续。

代码（部分来源于网络）。

struct DictListData

{

CListCtrl * plistctrl;

int isub;

int iseq;

};

BEGIN_MESSAGE_MAP()

ON_NOTIFY(LVN_COLUMNCLICK, IDC_LIST, OnColumnclickList)

END_MESSAGE_MAP()

static int CALLBACK CompareFunc(LPARAM lParam1,LPARAM lParam2,LPARAM lParamSort)

{

DictListData * pListData = (DictListData *)lParamSort;

CListCtrl * pDictlistCtrl = pListData->plistctrl;

int isub = pListData->isub;

LVFINDINFO findInfo;

findInfo.flags = LVFI_PARAM;

findInfo.lParam = lParam1;

int iItem1 = pDictlistCtrl->FindItem(&findInfo, -1);

findInfo.lParam = lParam2;

int iItem2 = pDictlistCtrl->FindItem(&findInfo, -1);

CString strItem1 = pDictlistCtrl->GetItemText(iItem1,isub);

CString strItem2 = pDictlistCtrl->GetItemText(iItem2,isub);

if(pListData->iseq)

{

return strcmp(strItem2, strItem1);

}

else

{

return -strcmp(strItem2, strItem1);

}

void CXXXDlg::OnColumnclickList1(NMHDR* pNMHDR, LRESULT* pResult)

{

NM_LISTVIEW * pNMListView = (NM_LISTVIEW * )pNMHDR;

// TODO: Add your control notification handler code here

DictListData *tmpp = new DictListData;

tmpp->plistctrl = &m_List; //Your list need to be sorted

tmpp->isub = pNMListView->iSubItem;

int sortnum = (int)GetProp(m_List.GetSafeHwnd(),"SORT_COLUMN");

int sortasc = (int)GetProp(m_List.GetSafeHwnd(),"SORT_DIRECTION");

if(sortnum == pNMListView->iSubItem)

{

sortasc = (sortasc + 1) % 2;

SetProp(m_List.GetSafeHwnd(),"SORT_DIRECTION",(HANDLE)sortasc);

}

SetProp(m_List.GetSafeHwnd(),"SORT_COLUMN",(HANDLE)pNMListView->iSubItem);

tmpp->iseq = sortasc;

m_List.SortItems(CompareFunc,(LPARAM)tmpp);

for (UINT i = 0; i < m_ExistingList.size(); i++) // The enter point

{

m_List.SetItemData(i,i);

}

*pResult = 0;

}