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Type Conversion, CString to longbinaray, CString to datetime

Posted on 1997-11-02
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Last Modified: 2013-11-20
hello,
   i'd like to know how can i convert CString to longbinary... and also CString to datetime... thanks, :) mallow
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Question by:mallow
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2 Comments
 
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Accepted Solution

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dirtdart earned 40 total points
ID: 1309168
By longbinary I am assuming you mean long.  That is pretty easy.

int len;
CString Num;
long ConvertedNum;
int ct;
char temp;

len = Num.GetLength();

for(ct = 0; ct < len; ++ct)
{
    temp = Num.GetAt(ct);
    ConvertedNum = (long)(temp + 48);
    ConvertedNum *=10;
}


CString to DateTime would go something like this:

int Month;
int Year;
int Day;
int pt;
CString temp;

CString OldDate;
COleDateTime NewDate;

pt = OldDate.Find("/");
temp = OldDate.Left(pt);

//At this point use to code above for converting a CString to a long, just substitiue int for long and set Month equal to the resulting value.  Trim off the value of temp from OldDate and perform this operation twice more to get the Day and Year.  Then call COleDateTime.SetTime(M, D, Y, H, M, S);


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Expert Comment

by:mmachie
ID: 1309169
to conver a cstring to a long value try:
CString num_to_convert;
long converted_num = atol( num_to_convert);

to convert the cstring to a COleDateTime you must parse out the the year, month, and day.  try using the CString::Mid() function.  convert the parsed value using atoi() function then call COleDateTime::SetDate() with the converted values.

hope this helps.
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