Is that really an API comment or one from the forum as stated below. If
our API comment is missleading we should correct this. File a bug and CC
me on it.
TableViewer supports sorting filtering in the following setups:
- TableViewer without SWT.VIRTUAL
- TableViewer with SWT.VIRTUAL *and* IStructuredContentProvider
As I outline many times often the bottleneck in big tables is not the
model or how you fetch it from your datasource but SWT to create the
items. The second setup from above exactly assumes that.
Tom
Emil Crumhorn schrieb:
You can put a sorter and a filter on a virtual TableViewer, but the
only content that will be sorted or filtered is the currently visible
content as the table does not know about objects that are not in the
view (hence the use of the replace(..) method, and the point of a
virtual table to begin with).
That said, you can certianly sort and filter data even on a virtual
table (we do it in our implementation), but you'll have to do it
"manually" (which is nearly the same as using
ViewerSorters/ViewerFilters anyway). Basically you sort/filter the
entire input stack using comparators (or whatever you prefer), put the
sorted object array back on the table as input and tell it how many
items there now are and force an update if needed. In our case we keep
a "original" list and use a "modified" list as root objects for the
table, the modified list is the sorted/filtered list and is always
used as table input, whenever the user needs to rever to the original
view that is not sorted/filtered we copy from the original version.
I'm not saying that's the ideal implementation, but it works fine. Our
table is about 28,000 entries, and sorting/filtering it is very fast.
As far as that API comment goes, I think it's a bit misleading.
Regards,
Emil
"Nuno" <nuno.esculcas@xxxxxxxxx> wrote in message
news:g01mq3$bq6$1@xxxxxxxxxxxxxxxxxxxx
Hello,
I'm implementing a TableViewer that has a ILazyContentProvider that i
had implemented. Now i need to add sort capabilities to my TableViewer.
In some forum i read that:
"...Currently only TableViewer (since 3.3) with the VIRTUAL-Bit and a
normal content provider can do sorting and filtering..."
I ask if this is true, and if it is, then can anyone point me a
sample or some kind of tutorial explaining how this is done.
Thanks
Nuno