Yeah, it's a bug, already reported at
"http://www.openlaszlo.org/jira/browse/LPP-4214";.
If you add this instruction before you create the new dset-instance, you should
get the right results:
lz.datapointer.prototype.ppcache={}
But sadly, this will clear the whole LzParsedPath-cache (you actually don't
need to mind what that means).
Alternatively, you can also do this one which should give you better
performance, because it won't clear the whole cache:
lz.datapointer.prototype.ppcache["ds:/phonebook/employee"] = null;
CC-ing Henry Minsky, because he is the data-guy for OpenLaszlo.
André
taocore wrote:
For lazy loading, I have to create dataset dynamicly. But I found that
destroy() method of dataset does not affect the view which use it as
datapath. Event if after destorying the dataset, I created a new one
with the same name, it seems that the view still associated with the
destroyed old dataset. Try the code below on the laszlo explorer online.
Any sugguestions would be much appreciated.
<canvas debug="true">
<class name="dset" extends="dataset"
request="true" type="http"
src="getemployees.jsp"/>
<script>
new dset(canvas, {name:'ds'});
</script>
<simplelayout axis="y"/>
<view name="v" datapath="ds:/phonebook/employee">
<simplelayout axis="x"/>
<text datapath="firstName/text()"/>
<text datapath="lastName/text()"/>
<text datapath="phone/text()"/>
</view>
<view name="bbb" bgcolor="yellow">
<simplelayout axis="x"/>
<text datapath="firstName/text()"/>
<text datapath="lastName/text()"/>
<text datapath="phone/text()"/>
</view>
<button>ok
<method event="onclick">
var dp = ds.getPointer();
dp.selectChild();
dp.selectChild();
Debug.write(dp.serialize());
dp.deleteNode();
dp.deleteNode();
ds.abort();
ds.destroy();
new dset(canvas, {name:'ds'});
Debug.write(ds.serialize());
parent.bbb.setDatapath("ds:/phonebook/employee");
ds.doRequest();
</method>
</button>
</canvas>
taocore
--
Official OpenLaszlo-Committer ^_^
