MFC Tips - Files and Folders

Cum citesc un fisier text linie cu linie?

Rezolvare:
Simplu. Instantiez un obiect tip CStdioFile si apelez CStdioFile::ReadString pana citesc toate liniile (pana cand ReadString intoarce FALSE).

Exemplu:

Cod:

void CFoo::ReadTextFile(LPCTSTR pszFileName, CStringArray& arrLines) { arrLines.RemoveAll(); CString strLine; TRY { CStdioFile file(pszFileName, CFile::modeRead); while(file.ReadString(strLine)) { arrLines.Add(strLine); } } CATCH_ALL(e) { e->ReportError(); // shows what's going wrong } END_CATCH_ALL }

Cum citesc intreg continutul unui fisier (text) intr-un obiect de tip CString?

Rezolvare:
Instanitiez un obiect de tip CFile, ii aflu lungimea cu CFile::GetLength apoi apelez functia CFile::Read.

Exemplu:

Cod:

void CFoo::ReadTextFile(LPCTSTR pszFileName, CString& strText) { strText.Empty(); TRY { CFile file(pszFileName, CFile::modeRead); const DWORD dwLength = file.GetLength(); file.Read(strText.GetBuffer(dwLength), dwLength); strText.ReleaseBuffer(); } CATCH_ALL(e) { e->ReportError(); } END_CATCH_ALL }