本文整理汇总了C++中CField::IsKey方法的典型用法代码示例。如果您正苦于以下问题：C++ CField::IsKey方法的具体用法？C++ CField::IsKey怎么用？C++ CField::IsKey使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CField的用法示例。
在下文中一共展示了CField::IsKey方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: BuildFieldValueList
/**
* Metodo para montar a lista de labels=valores para uso no
* no update, note bAllFields, permite levar os null's na query
*/
CString CTableBase::BuildFieldValueList(BOOL bAllFields, BOOL bNoKeyInSet)
{
CString s;
POSITION pos = m_mapFields.GetStartPosition();
CString sKey;
CField *pClass;
int counter = 0;
BOOL usefull = FALSE;
///Ll## STLOG_WRITE("Inicio CTableBase::BuildFieldValueList()");
while(pos != NULL)
{
m_mapFields.GetNextAssoc( pos, sKey, pClass );
// Naoadicionar as chaves no set xxxx='xxxx'
if(pClass->IsKey() && bNoKeyInSet)
continue;
if(!bAllFields) // Skipar os nulos !
{
if(!pClass->IsNull())
{
if(counter++ > 0)
s += _T(",\r\n");
usefull = TRUE;
//if(sKey.Find(' ') > 0)
s += _T("[") + sKey + _T("]=");
//else
// s += sKey + _T("=");
s += pClass->GetQueryFormatValue();
}
}
else // fazer assign mesmo dos nulos / nao preenchidos !!!
{
usefull = TRUE;
if(counter++ > 0)
s += _T(",\r\n");
//if(sKey.Find(' ') > 0)
s += _T("[") + sKey + _T("]=");
//else
// s += sKey + _T("=");
if(!pClass->IsNull())
s += pClass->GetQueryFormatValue();
else
s += _T("NULL");
}
}
//STLOG_WRITE(L"CTableBase::BuildFieldValueList: CAMPOS/VALORES: %s", s);
return s;
}示例2: Reset
/**
* Metodo para limpar todos os valores dos campos da tabela
*/
void CTableBase::Reset(BOOL bExcludeKeys)
{
POSITION pos = m_mapFields.GetStartPosition();
CString sKey;
CField *pField;
while(pos != NULL)
{
m_mapFields.GetNextAssoc( pos, sKey, pField );
if(pField->IsKey() && bExcludeKeys)
continue;
pField->SetValue(_T(""));
}
}示例3: BuildWhereList
/**
* Metodo para montar a lista de label=valor para uso no
* where clause da query
*/
CString CTableBase::BuildWhereList(BOOL bOnlyKeys, BOOL bIgnoreNULL)
{
CString s(_T("WHERE "));
POSITION pos = m_mapFields.GetStartPosition();
CString sKey;
CField *pClass;
int counter = 0;
BOOL usefull = FALSE;
while(pos != NULL)
{
m_mapFields.GetNextAssoc( pos, sKey, pClass );
// Se o campo estiver na lista de ignore... nao usar ...
if(m_ignoreFields.Find(sKey) != NULL)
continue;
// Se nao for chave ...
if(bOnlyKeys && !pClass->IsKey())
continue;
if(!pClass->IsNull())
{
usefull = TRUE;
CString s1 = pClass->GetQueryFormatValue();
if(s1.CompareNoCase(_T("NULL")) == 0 ||
s1.CompareNoCase(_T("\"NULL\"")) == 0 )
{
if(!bIgnoreNULL)
{
if(counter++ > 0)
s += _T("\r\n AND ");
s += _T("[") + sKey + _T("] IS NULL");
}
}
else
{
if(counter++ > 0)
s += _T("\r\n AND ");
//if(sKey.Find(' ') > 0)
s += _T("[") + sKey + _T("]=");
//else
// s += sKey + _T("=");
s += s1;
}
}
else
{
if(!bIgnoreNULL)
{
if(counter++ > 0)
s += _T("\r\n AND ");
s += _T("[") + sKey + _T("] IS NULL");
}
}
}
if(!usefull)
return _T("");
return s;
}