vHJ=msg.hj; //msg.hj是结构,int;vHJ是ado数据,int
m_hj=vHJ;//m_hj是文本框变量
为什么error C2593: 'operator =' is ambiguous
error C2679: binary '=' : no operator defined which takes a right-hand operand of type 'class _bstr_t' (or there is no acceptable conversion)
Error executing cl.exe.怎样给他们赋值,急!!!
m_hj=vHJ;//m_hj是文本框变量
为什么error C2593: 'operator =' is ambiguous
error C2679: binary '=' : no operator defined which takes a right-hand operand of type 'class _bstr_t' (or there is no acceptable conversion)
Error executing cl.exe.怎样给他们赋值,急!!!
解决方案 »
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DocWizard C++ 程序文档生成工具 http://www.betajin.com/alphasun/index.htmswitch(m_adwType[vIndex.lVal])
{
case FT_INT:
var.vt = VT_I4;
var.lVal = *(int*)m_adwFields[vIndex.lVal];
break;
case FT_STRING:
var = _variant_t(*(CString*)m_adwFields[vIndex.lVal]);
break;
case FT_REAL:
var.vt = VT_R8;
var.dblVal = *(double*)m_adwFields[vIndex.lVal];
break;
case FT_TIME:
var.vt = VT_DATE;
var.date = DATE((*(COleDateTime*)m_adwFields[vIndex.lVal]));
break;
default:
ASSERT(0);
break;
}
m_pRecordset->PutCollect(vIndex, var);
switch(m_adwType[vIndex.lVal])
{
case FT_INT:
if(var.vt==VT_NULL)
{
*(int*)m_adwFields[vIndex.lVal] = 0;
break;
}
var.vt = VT_I4;
*(int*)m_adwFields[vIndex.lVal] = var.lVal;
break;
case FT_STRING:
if(var.vt==VT_NULL)
{
*(CString*)m_adwFields[vIndex.lVal] = CString("");
break;
}
var.vt = VT_BSTR;
*(CString*)m_adwFields[vIndex.lVal]
= CString((LPCWSTR)var.bstrVal);
break;
case FT_REAL:
if(var.vt==VT_NULL)
{
*(double*)m_adwFields[vIndex.lVal] = 0;
break;
}
if(var.vt==VT_R8)
*(double*)m_adwFields[vIndex.lVal] = var.dblVal;
else if(var.vt==VT_R8)
{
*(double*)m_adwFields[vIndex.lVal] = (double)*var.pfltVal;
}
break;case FT_TIME:
var.vt = VT_DATE;
*(COleDateTime*)m_adwFields[vIndex.lVal] = COleDateTime(var.date);
break;
default:
ASSERT(0);
return;
break;
}