| Changing the selection of a Table during execRowsSelected(rows) [message #1383924] |
Tue, 27 May 2014 08:41  |
 Jeremie Bresson
Messages: 1252
Registered: October 2011 |
Senior Member |
|
|
In the application I am working on, we have some use cases that imply changing the selection of the Table during execRowSelected(rows):
Use-Case 1/ If the rows parameter is an empty list, restore the selection to the default selection.
Something like:
@Override
protected void execRowsSelected(List<? extends ITableRow> rows) throws ProcessingException {
if (rows.isEmpty()) {
restoreSelection();
}
}
Where restoreSelection() selects row given an variable on the form (assuming PersonNrColumn is a not displayable column marked as primary key)
public void restoreSelection() {
ITableRow row = findRowByKey(Collections.singletonList(m_selectedPersonNr));
if (row != null) {
selectRow(row);
}
}
Use-Case 2/
We have implemented some master/detail behavior on our tables.
When the user selects another row in the table, we need to ask him something (bringing a MessageBoxshowYesNoMessage(..) question). If he answers "no" we need to selects back the previous row.
In both cases, it is not possible to influence the selection of the Table during execRowsSelected(..). How can I implement the use cases? Thank you in advance.
.
[Updated on: Tue, 27 May 2014 08:45] Report message to a moderator |
|
|
| Re: Changing the selection of a Table during execRowsSelected(rows) [message #1386643 is a reply to message #1383924] |
Thu, 19 June 2014 04:16  |
Jeremie Bresson
Messages: 1252
Registered: October 2011 |
Senior Member |
|
|
I got from Ivan Motsch following input:
An idea is to modify selectRows()
@Override
public void selectRows(List<? extends ITableRow> rows, boolean append) {
//modify rows.
super.selectRows(rows, append);
}
This idea is not working at all.
For my use case (1) "ensure that a row is always selected", I tried this implementation:
@Override
public void selectRows(List<? extends ITableRow> rows, boolean append) {
List<ITableRow> allRows = getRows();
if (rows.size() == 0 && allRows.size() > 0) {
super.selectRows(Collections.singletonList(allRows.get(0)), false);
}
else {
super.selectRows(rows, append);
}
}
For my use case (2) "ask if the user is sure he wants to change the selected row", I tried this implementation:
@Override
public void selectRows(List<? extends ITableRow> rows, boolean append) {
List<? extends ITableRow> selection;
if (rows.size() == 1 && rows.get(0) != getSelectedRow()) {
int r = MessageBox.showYesNoMessage(null, "Are you sure?", null);
if (r == MessageBox.YES_OPTION) {
selection = Collections.singletonList(rows.get(0));
}
else {
selection = Collections.singletonList(getSelectedRow());
}
}
else {
selection = Collections.singletonList(getSelectedRow());
}
super.selectRows(selection, false);
}
I think that one of the problems is that the UI do not care of what the model indicates as selected row.
In case of a value field we have really:
User input => transfert the in the model with setTextFromUI() => parse, set, format value => set the computed displayText back in the UI.
It doesn't seem to be the case with the Table selection.
|
|
|
| Re: Changing the selection of a Table during execRowsSelected(rows) [message #1388604 is a reply to message #1386643] |
Thu, 26 June 2014 17:45 |
Jeremie Bresson
Messages: 1252
Registered: October 2011 |
Senior Member |
|
|
Quick update. We solve this with an input from Claudio Guglielmo: use a Job do change the selection.
final ITableRow row
ClientSyncJob job = new ClientSyncJob("selectRowDelayed", ClientSession.get()) {
@Override
protected void runVoid(IProgressMonitor monitor) throws ProcessingException {
selectRow(row);
}
};
job.setSystem(true);
job.schedule();
It is not really nice, but it works. Thank you a lot.
PS: I just saw this forum Post from BSH. It is related. Same solution for a similar problem.
.
[Updated on: Fri, 27 June 2014 06:54] Report message to a moderator |
|
|
Powered by
FUDForum. Page generated in 0.24854 seconds
] 
Search
Help
Register
Login
Home
