Reading a file...

Using MFC VC++6, I created a file which has the character 'a' at position 1.  I want to read the file and convert it  to a CString  and then display it to a message box.

Here is the code I have been working with.

const int MAX_STRING_LENGTH = 10;
CString MyString;
CFile MyFile;
MyFile.Open("...MyfilePath", CFile::modeNoTruncate | CFile::modeRead   );

char* TempBuf = MyString.GetBuffer(MAX_STRING_LENGTH);
UINT NumChars = MyFile.Read((void FAR*) TempBuf, MAX_STRING_LENGTH - 1);
 MyString.ReleaseBuffer(NumChars);

 AfxMessageBox(MyString);

I get a run time exception error when I run this code.

Is there an easier way to do this?

Thanks,
RABMissouri
rabmissouriAsked:
Who is Participating?
 
AlexFMConnect With a Mentor Commented:
Add 0 to the end of string:

UINT NumChars = MyFile.Read((void FAR*) TempBuf, MAX_STRING_LENGTH - 1);
TempBuf[NumChars] = 0;
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AlexFMCommented:
Another way is using CStdioFile Class which has ReadString member:

BOOL ReadString(CString& rString);
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rabmissouriAuthor Commented:
It works.  Thanks.  I think my main difficulty was converting a char array to a CString.  Is there an easy way to do this?  Why did you have me add the line "TempBuff[NumChars]=0"

Thanks again,
RABMissouri
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palani_vsCommented:
Hi
if u want to just assign a char array to cstring, u can use Format function.

vs
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AlexFMCommented:
Why did you have me add the line "TempBuff[NumChars]=0"

Because 0 means end of string. Without 0 in the end any string function may fail continuing to read memory block.
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