🚀 go-pugleaf

You must renew the QueryDataSet otherwise it also points the one in the 
hashmap.
Otherwise it will work; I use this logic many times and works.

actualqds= new QueryDataSet(with the new Query String).
Before modifying with any new querystring.

"John T. Dow" <john@johntdow.com> wrote in message 
news:Xns980571EA9B000johnjohntdowcom@207.105.83.66...
> Thanks for the suggestion, which I tried. Unfortunately it's not working.
>
> Before changing the query string, I did this:
>
>    HashMap saveqds = new HashMap();
>    saveqds.put("SAVE", actualqds);
>
> When wanting to revert to the original, I did this:
>
>    actualqds = (QueryDataSet) saveqds.get("SAVE");
>
> Having done this, the query string has not reverted and the row count
> remains 0.
>
> John
>
>
>
>
> "Mehmet F. Erten" <mehmet_erten@mblsoft.com> wrote in
> news:44be3b53$1@newsgroups.borland.com:
>
>> Hi,
>> Try this.
>>
>> hasmap or treemap myMap
>> myMap.put("OLD", currentQueryDataSet)
>> currentQueryDataSet = new QueryDataSet(with the new Query String).
>> If you don't like it. (if getRowCouunts == 0)
>> currentQueryDataSet = (QueryDataSet) myMap.get("OLD");
>>
>> "John T. Dow" <jo
>> hn@johntdow.com> wrote in message
>> news:Xns98053677CC68Cjohnjohntdowcom@207.105.83.66...
>>> Is it possible to change a querydataset's query string and execute
>>> the query, and then revert to the original query string with the
>>> original rows and cursor position without having to reexecute with
>>> the original query string?
>>>
>>> I have an application where the user can easily create new queries on
>>> the fly. As I have developed it so far, if the user tries a new
>>> query, he loses
>>> the old. I would like to be able to revert to the old query, for
>>> example if
>>> the new query fails to find any rows.
>>>
>>> Is it possible to do something clever like saving the original
>>> QueryProvider? Can you clone the entire qds, change the query string
>>> etc, and then if you like the outcome substitute the new qds for the
>>> old?
>>>
>>> John
>>
>>
>