Mega Code Archive
Convert a ADO Recordset to XML and the reverse way
<![CDATA[
Title: convert a ADO Recordset to XML and the reverse way?
unit ADOXMLUnit;
interface
uses
Classes, ADOInt;
function RecordsetToXML(const Recordset: _Recordset): string;
function RecordsetFromXML(const XML: string): _Recordset;
implementation
uses
ComObj;
{
Example:
...
Memo1.Lines.Text:=RecordsetToXML(ADOQuery1.Recordset);
...
}
function RecordsetToXML(const Recordset: _Recordset): string;
var
RS: Variant;
Stream: TStringStream;
begin
Result := '';
if Recordset = nil then Exit;
Stream := TStringStream.Create('');
try
RS := CreateOleObject('ADODB.Recordset');
RS := Recordset;
RS.Save(TStreamAdapter.Create(stream) as IUnknown, adPersistXML);
Stream.Position := 0;
Result := Stream.DataString;
finally
Stream.Free;
end;
end;
{
Example:
...
ADOQuery1.Recordset:=RecordsetFromXML(Memo1.Lines.Text);
...
}
function RecordsetFromXML(const XML: string): _Recordset;
var
RS: Variant;
Stream: TStringStream;
begin
Result := nil;
if XML = '' then Exit;
try
Stream := TStringStream.Create(XML);
Stream.Position := 0;
RS := CreateOleObject('ADODB.Recordset');
RS.Open(TStreamAdapter.Create(Stream) as IUnknown);
Result := IUnknown(RS) as _Recordset;
finally
Stream.Free;
end;
end;
end.
]]>