Are VIRTUAL GridTableViewer supposed to work? [message #1799520] |
Sat, 08 December 2018 09:48 |
Linuxhippy Mising name Messages: 72 Registered: July 2009 |
Member |
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Hi,
I wonder - are virtual GridTableViewers supposed to work with RAP?
Virtual Tables work perfectly fine, however with GridTableViewers I haven't had much luck.
With the snippit I can observe the following behaviour:
* if the setMinSize call is commented out, I get the lazy-loading dots "..." as soon as I start scroling, but those are never resolved
* in case I make the call to setMinSize active, the GridTableViewer behaves actually non-virtual. All elements are loaded, with 10000 entries the browser tab is unresponsive.
public void createContent(Composite parent) {
final int INITIAL_INPUT_SIZE = 10000;
ScrolledComposite comp = new ScrolledComposite(parent, SWT.VERTICAL);
comp.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, true));
final GridTableViewer gridTableViewer = new GridTableViewer(comp, SWT.VIRTUAL);
gridTableViewer.setContentProvider(ArrayContentProvider.getInstance());
GridColumn gridColumn = new GridColumn(gridTableViewer.getGrid(), SWT.NONE);
gridColumn.setWidth(200);
final Object[] input = new Object[INITIAL_INPUT_SIZE];
for(int item = 0; item < input.length; item++) {
input[item] = "Item " + item;
}
gridTableViewer.setInput(input);
comp.setContent(gridTableViewer.getGrid());
comp.setExpandHorizontal(true);
comp.setExpandVertical(true);
//comp.setMinSize(gridTableViewer.getGrid().computeSize(SWT.DEFAULT, SWT.DEFAULT));
}
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