cdaorecordset::GetFieldValue --> variant 
Author Message
 cdaorecordset::GetFieldValue --> variant

hi --

i'm trying to retrieve a string from a CDaoRecordSet using
GetFieldValue(), but am getting some strange return values.

Note: Most of this code is from Bob Place's GenericRecordSet
class on codeguru, i recommend it.

CString GenericRecordset::GetCString(CString ColumnName) {
        COleVariant covFieldValue;
        VARIANT *vFieldValue;
        CString Holder;
        GetFieldValue(ColumnName, covFieldValue);
        vFieldValue = (LPVARIANT)covFieldValue;
        Holder.Format("%s",vFieldValue->pbVal);
        return Holder;

Quote:
}

for some fields, this works fine. for others (possibly those
with a Memo type), it only returns the first character of
the string. i can get the full string with:

        Holder = vFieldValue->bstrVal;

but for the cases where the top code worked originally, that
returns garbage. i can't tell any difference in the two
VARIANTs that would allow me to differentiate betweent the
two cases, and documentationt that i can find suggests that
the value should always be in bstrVal if (vFieldValue.vt ==
VT_BSTR).

thanks for any suggestions
r



Sun, 15 Sep 2002 03:00:00 GMT  
 
 [ 1 post ] 

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