【DBgrid的savetostream和loadfromstream问题】

Question

var stream1:TStream;
begin
  DBgrid1.columns.savetostream(stream1);
  ... ...
  DBgrid1.columns.loadfromstream(stream1);
end;------------------------
编译通过，执行时报错。好像是stream1定义的不对。
改成如下：
------------------------var stream1:TMemoryStream;
begin
  stream1:=TMemoryStream.Create;
  DBgrid1.columns.savetostream(stream1);
  ... ...
  DBgrid1.columns.loadfromstream(stream1);
end;------------------------
在savetostream时正常，可在loadfromstream报错“stream read error”请高手指点！
------------------------

Answer 1

stream1.Position:=0;
  DBgrid1.columns.loadfromstream(stream1);