Mega Code Archive
Exporting any TDataSet to a comma delimited ASCII file
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Title: Exporting any TDataSet to a comma delimited ASCII file
Question: How to export any kind of TDataSet to a comma delimited ASCII file?
Answer:
unit Unit1;
interface
uses db, classes, dialogs,sysutils;
{procedure DataSetToASCII -
exports records from the ADataSet TDataSet
to specified ASCIIFile text file. Fields are
separated by provided Delimiter character.
Only fields with Tag property set to 0 (default)
are included in exporting. Records are separated
with line break characters and ordered as in
the ADataSet.
If QuoteStrings is True then fields of type
ftString,ftMemo,ftFmtMemo,ftFixedChar and ftWideString are
quoted in the output file - thanks Bill Artemik for this very important tip}
procedure DataSetToASCII(const ADataSet: TDataSet; const ASCIIFile: TFileName; const Delimiter: Char; const QuoteStrings: Boolean);
implementation
procedure DataSetToASCII(const ADataSet: TDataSet; const ASCIIFile: TFileName; const Delimiter: Char; const QuoteStrings: Boolean);
var tmpList: TStringList;
i,LastIndex: LongInt;
AsciiRecord: String;
begin
tmpList:= TStringList.Create;
try
with ADataSet do begin
LastIndex:= Fields.Count - 1;
First;
while not EOF do begin
AsciiRecord:= '';
for i := 0 to LastIndex do
if Fields.Fields[i].Tag = 0 then begin
if QuoteStrings and
(Fields.Fields[i].DataType in [ftString,ftMemo,ftFmtMemo,ftFixedChar,ftWideString]) then
AsciiRecord:= AsciiRecord + QuotedStr(Fields.Fields[i].AsString)
else
AsciiRecord:= AsciiRecord + Fields.Fields[i].AsString;
if i AsciiRecord:= AsciiRecord + Delimiter;
end;
tmpList.Append(AsciiRecord);
Next
end
end;
try
tmpList.SaveToFile(ASCIIFile)
except
ShowMessage('Could not save table to specified file: ' + ASCIIFile)
end;
finally
tmpList.Free;
end;
end;
end.
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