VC++组合框操作辅助类使组合框显示字符串与任意数据类型配对

使用步骤：

1.关联控件

    调用InitCtrl函数CComboBox控件进行关联

2.预定义字符串与配对数值

    使用AddItem函数初始化下拉列表显示字符串配对实际数值

3.显示数据到组合框

    调用FillWithStr/FillWithStr_T/FillSiblingComboBox将已添加好的数据显示到组合框或非关联ComboBox控件

4.获取用户选择值

    需要获取组合框实际选择值调用GetSelectedPair/GetSelectedTValue/GetSelectedStrValue可以直接获取用户选择的字符数值对或对应的数值(注意下拉列表样式选择Drop List)。

#pragma once#include <vector>//author:葛红军namespace nsTStrPair{#ifndef _tcscpy_s#define _tcscpy_s(strDestination, numberOfElements, strSource)\_tcscpy(strDestination, strSource)#endiftemplate<typename T>struct TStrPair{PTCHARszValue;TtValue;};////////////////////////////////////////////////////////////////////////////CTStrPairtemplate<typename T>class CTStrPair{public:typedef typename std::vector<TStrPair<T>*>::iteratorTStrPairIterator;typedef typename std::allocator<TStrPair<T>*>::referencereference;CTStrPair(){}virtual ~CTStrPair(){RemoveAll();}LPCTSTR TToStr(T tValue);T StrToT(LPCTSTR szValue, BOOL bCaseSensitive=TRUE);INT_PTR GetTIndex(T tValue);//获取T值的序号INT_PTR GetStrIndex(LPCTSTR szValue, BOOL bCaseSensitive=TRUE);//获取Str值的序号BOOL AddItem(LPCTSTR szValue, T tValue, BOOL bUniqueStr=TRUE, BOOL bCaseSensitive=TRUE);BOOL RemoveItem(LPCTSTR szValue, BOOL bCaseSensitive=TRUE);BOOL RemoveItem(T tValue);void RemoveAll();CString FormatStr(LPTSTR pszFrm, ...){CStringsVal;va_listargptr;va_start(argptr, pszFrm);sVal.FormatV(pszFrm, argptr);va_end(argptr);return sVal;}reference operator[](size_t _P){return _Items[_P];}virtual TStrPair<T>** GetData() {if (_Items.empty()) return NULL;return &_Items[0];}virtual size_t GetCount(){return _Items.size();}private:std::vector<TStrPair<T>*> _Items;};template<typename T>INT_PTR CTStrPair<T>::GetStrIndex( LPCTSTR szValue, BOOL bCaseSensitive/*=TRUE*/ ){INT_PTR nIndex = 0;if (_Items.empty()) return -1;for (TStrPairIterator it=_Items.begin(); it!=_Items.end(); ++it, ++nIndex){TStrPair<T> *item= *it;if (bCaseSensitive) {if (!_tcscmp(item->szValue, szValue)) {return nIndex;}} else if (!_tcsicmp(item->szValue, szValue)) {return nIndex;}}return -1;}template<typename T>INT_PTR CTStrPair<T>::GetTIndex( T tValue ){INT_PTR nIndex = 0;if (_Items.empty()) return -1;for (TStrPairIterator it=_Items.begin(); it!=_Items.end(); ++it, ++nIndex){TStrPair<T> *item= *it;if (item->tValue == tValue) {return nIndex;}}return -1;}template<typename T>void CTStrPair<T>::RemoveAll(){if (_Items.empty()) return;for (TStrPairIterator it=_Items.begin(); it!=_Items.end(); ++it){TStrPair<T> *item= *it;delete []item->szValue;item->szValue= NULL;delete item;item= NULL;}_Items.clear();}template<typename T>BOOL CTStrPair<T>::RemoveItem( T tValue ){if (_Items.empty()) return FALSE;BOOL bItemErased = FALSE;//注意删除操作顺序for (TStrPairIterator it=_Items.begin(); it!=_Items.end();){TStrPair<T> *item = *it;if (item->tValue == tValue) {delete []item->szValue;item->szValue = NULL;delete item;item = NULL;it = _Items.erase(it);bItemErased = TRUE;} else {++it;}}return bItemErased;}template<typename T>BOOL CTStrPair<T>::RemoveItem( LPCTSTR szValue, BOOL bCaseSensitive/*=TRUE*/ ){BOOL bItemErased = FALSE;if (_Items.empty()) return TRUE;//注意删除操作顺序for (TStrPairIterator it=_Items.begin(); it!=_Items.end();){TStrPair<T> *item = NULL;if (bCaseSensitive) {if (!_tcscmp((*it)->szValue, szValue)) {item = *it;}} else if (!_tcsicmp((*it)->szValue, szValue)) {item = *it;}if (item) {bItemErased = TRUE;delete []item->szValue;item->szValue = NULL;delete item;item = NULL;it = _Items.erase(it);} else {++it;}}return bItemErased;}template<typename T>BOOL CTStrPair<T>::AddItem( LPCTSTR szValue, T tValue, BOOL bUniqueStr/*=TRUE*/, BOOL bCaseSensitive/*=FALSE*/ ){if (bUniqueStr && !_Items.empty()) {for (TStrPairIterator it=_Items.begin(); it!=_Items.end(); ++it){TStrPair<T> *item = *it;if (bCaseSensitive) {if (!_tcscmp(item->szValue, szValue)) {return FALSE;}} else if (!_tcsicmp(item->szValue, szValue)) {return FALSE;}}}TStrPair<T> *newItem = new TStrPair<T>;if (!newItem) return FALSE;memset(newItem, 0, sizeof(TStrPair<T>));size_t nStrLen= _tcslen(szValue);newItem->szValue= new TCHAR[nStrLen+1];if (!newItem->szValue) {delete newItem;newItem = NULL;return FALSE;}_tcscpy_s(newItem->szValue, nStrLen+1, szValue);newItem->tValue = tValue;_Items.push_back(newItem);return TRUE;}template<typename T>LPCTSTR CTStrPair<T>::TToStr( T tValue ){if (_Items.empty()) return NULL;for (TStrPairIterator it=_Items.begin(); it!=_Items.end(); ++it){TStrPair<T> *item = *it;if (item->tValue == tValue) {return item->szValue;}}return NULL;}template<typename T>T CTStrPair<T>::StrToT( LPCTSTR szValue, BOOL bCaseSensitive/*=TRUE*/ ){T tValue;if (_Items.empty()) return tValue;for (TStrPairIterator it=_Items.begin(); it!=_Items.end(); ++it){TStrPair<T> *item = *it;if (bCaseSensitive) {if (!_tcscmp(item->szValue, szValue)) {return item->tValue;}} else if (!_tcsicmp(item->szValue, szValue)) {return item->tValue;}}return tValue;}#define DECLARE_CTSTRPAIRCLASS(class_name, T_type)\private:\virtual void _Init();\public:\class_name() { _Init(); }#define BEGIN_CTSTRPAIRCLASS(class_name)\void class_name::_Init() {#define ADDPAIRITEM(szValue, tValue)\AddItem(szValue, tValue);#define END_CTSTRPAIRCLASS()\}////////////////////////////////////////////////////////////////////////////CCBTStrPairtemplate<typename T>class CCBTStrPair : public CTStrPair<T>{public:CCBTStrPair() : m_pWndParent(NULL), m_nCBID(0) {}CCBTStrPair(CWnd *parent, UINT nID);voidFillWithStr(int nDefaultSelectIndex=0, BOOL bReverseOrder=FALSE/*倒序填充*/);BOOLFillWithStr_T(T tDefaultSelectValue);voidFillSiblingComboBox(UINT nID, int nDefaultSelect=0);TStrPair<T>*GetSelectedPair();size_t          SetSelectTValue(T tSelectValue);TGetSelectedTValue(T tDefaultValue);int             SetSelectStrValue(LPCTSTR szSelectValue, BOOL bCaseSensitive);LPCTSTRGetSelectedStrValue(LPCTSTR szDefaultValue=NULL);BOOLisItemSelected();voidSetSelectNone();voidInitCtrl(CWnd *parent, UINT nID);private:CWnd *m_pWndParent;UINT m_nCBID;};template<typename T>void CCBTStrPair<T>::InitCtrl( CWnd *parent, UINT nID ){m_pWndParent = parent;m_nCBID = nID;}template<typename T>int CCBTStrPair<T>::SetSelectStrValue( LPCTSTR szSelectValue, BOOL bCaseSensitive ){ASSERT(m_pWndParent);ASSERT(m_nCBID);CComboBox *pCB = (CComboBox*)m_pWndParent->GetDlgItem(m_nCBID);if (pCB==NULL) return CB_ERR;TStrPair<T> **items= GetData();intnCnt= GetCount();ASSERT(items && (nCnt>=0));if (GetProp(pCB->GetSafeHwnd(), PropFlag) != hProp) return CB_ERR;for (int i=0; i!=pCB->GetCount(); ++i){int nTag = pCB->GetItemData(i);if (bCaseSensitive) {if (_tcscmp(szSelectValue, items[nTag]->szValue)==0) {pCB->SetCurSel(i);return i;}} else {if (_tcsnicmp(szSelectValue, items[nTag]->szValue)==0) {pCB->SetCurSel(i);return i;}}}return CB_ERR;}template<typename T>size_t CCBTStrPair<T>::SetSelectTValue( T tSelectValue ){ASSERT(m_pWndParent);ASSERT(m_nCBID);CComboBox *pCB = (CComboBox*)m_pWndParent->GetDlgItem(m_nCBID);if (pCB==NULL) return CB_ERR;TStrPair<T> **items= GetData();size_tnCnt= GetCount();ASSERT(items && (nCnt>=0));for (size_t i=0; i<(size_t)pCB->GetCount(); ++i){size_t nTag = pCB->GetItemData((int)i);if (items[nTag]->tValue == tSelectValue) {pCB->SetCurSel((int)i);return i;}}return CB_ERR;}template<typename T>BOOL CCBTStrPair<T>::isItemSelected(){ASSERT(m_pWndParent);ASSERT(m_nCBID);CComboBox *pCB = (CComboBox*)m_pWndParent->GetDlgItem(m_nCBID);if (pCB==NULL) return FALSE;return (pCB->GetCurSel() != CB_ERR);}template<typename T>void CCBTStrPair<T>::SetSelectNone(){ASSERT(m_pWndParent);ASSERT(m_nCBID);CComboBox *pCB = (CComboBox*)m_pWndParent->GetDlgItem(m_nCBID);if (pCB==NULL) return;pCB->SetCurSel(CB_ERR);}template<typename T>CCBTStrPair<T>::CCBTStrPair( CWnd *parent, UINT nID ) :m_pWndParent(parent), m_nCBID(nID){}template<typename T>void CCBTStrPair<T>::FillWithStr(int nDefaultSelectIndex/*=0*/, BOOL bReverseOrder/*=FALSE*/ ){ASSERT(m_pWndParent);ASSERT(m_nCBID);CComboBox *pCB = (CComboBox*)m_pWndParent->GetDlgItem(m_nCBID);if (pCB==NULL) return;ASSERT(nDefaultSelectIndex>=0);TStrPair<T> **items= GetData();size_tnCnt= GetCount();ASSERT(items && (nCnt>=0));pCB->ResetContent();if (bReverseOrder) {for (size_t i=nCnt-1; i!=-1; --i){int nIndex = pCB->AddString(items[i]->szValue);pCB->SetItemData(nIndex, i);}} else {for (size_t i=0; i!=nCnt; ++i){int nIndex = pCB->AddString(items[i]->szValue);pCB->SetItemData(nIndex, i);}}pCB->SetCurSel(nDefaultSelectIndex);}template<typename T>BOOL CCBTStrPair<T>::FillWithStr_T( T tDefaultSelectValue ){ASSERT(m_pWndParent);ASSERT(m_nCBID);CComboBox *pCB = (CComboBox*)m_pWndParent->GetDlgItem(m_nCBID);if (pCB==NULL) return CB_ERR;TStrPair<T> **items= GetData();size_tnCnt= GetCount();size_tnSel= CB_ERR;ASSERT(items && (nCnt>=0));for (size_t i=0; i<nCnt; ++i){int nIndex = pCB->AddString(items[i]->szValue);pCB->SetItemData(nIndex, i);if (items[i]->tValue == tDefaultSelectValue) {nSel = nIndex;}}pCB->SetCurSel((int)nSel);return (nSel != CB_ERR);}template<typename T>void CCBTStrPair<T>::FillSiblingComboBox(UINT nID, int nDefaultSelect/* =0 */){ASSERT(m_pWndParent);ASSERT(m_nCBID);ASSERT(nID);CComboBox *pCB = (CComboBox*)m_pWndParent->GetDlgItem(nID);if (pCB==NULL) return;ASSERT(nDefaultSelect>=CB_ERR);TStrPair<T> **items= GetData();intnCnt= GetCount();ASSERT(items && (nCnt>=0));pCB->ResetContent();for (int i=0; i!=nCnt; ++i){int nIndex = pCB->AddString(items[i]->szValue);pCB->SetItemData(nIndex, i);}pCB->SetCurSel(nDefaultSelect);}template<typename T>TStrPair<T>* CCBTStrPair<T>::GetSelectedPair(){ASSERT(m_pWndParent);ASSERT(m_nCBID);if (!m_pWndParent->GetSafeHwnd()) return NULL;CComboBox *pCB = (CComboBox*)m_pWndParent->GetDlgItem(m_nCBID);if (pCB==NULL) return NULL;TStrPair<T> **items= GetData();size_tnCnt= GetCount();if (!nCnt) return NULL;intnSel= pCB->GetCurSel();if (nSel == CB_ERR) return NULL;size_tnTag= pCB->GetItemData(nSel);if (nTag < nCnt) return (items[nTag]);return NULL;}template<typename T>T CCBTStrPair<T>::GetSelectedTValue(T tDefaultValue){TtRet = tDefaultValue;TStrPair<T> *item = GetSelectedPair();if (item) tRet = item->tValue;return tRet;}template<typename T>LPCTSTR CCBTStrPair<T>::GetSelectedStrValue(LPCTSTR szDefaultValue/*=NULL*/){TStrPair<T> *item = GetSelectedPair();if (item) return item->szValue;return szDefaultValue;}#define DECLARE_CCOMBOBOXTSTRPAIRCLASS(class_name, T_type)\private:\void _Init();\public:\class_name(CWnd *parent=NULL, UINT nID=(UINT)-1) :\CCBTStrPair<T_type>(parent, nID) { _Init(); }#define BEGIN_CCOMBOBOXTSTRPAIRCLASS(class_name)\BEGIN_CTSTRPAIRCLASS(class_name)#define END_CCOMBOBOXTSTRPAIRCLASS()\END_CTSTRPAIRCLASS()}//end namespace