I want to get the selected row in a GWT CellTable when the user pressed down the keys up or down. In my example I have a table with three columns (ID, name, date) and I have implemented the code to handle the click event. When clicking a row I get the selected object. Now I want to do the same when moving through the rows of the table using the arrows keys up and down.
This is my code:
// Create id column.
TextColumn<MyObject> idColumn = new TextColumn<MyObject>()
{
@Override
public String getValue(MyObject obj)
{
return String.valueOf(obj.getId());
}
};
// Create name column.
TextColumn<MyObject> nameColumn = new TextColumn<MyObject>()
{
@Override
public String getValue(MyObject obj)
{
return obj.getName();
}
};
// Create date column.
TextColumn<MyObject> dateColumn = new TextColumn<MyObject>()
{
@Override
public String getValue(MyObject obj)
{
return String.valueOf(obj.getDate());
}
};
// Create the CellTable element and add columns
CellTable<MyObject> table = new CellTable<MyObject>();
table.addColumn(idColumn, "ID");
table.addColumn(nameColumn, "Name");
table.addColumn(dateColumn, "Date");
// Create the selectioModel and the SelectionChangeEvent Handler
NoSelectionModel<MyObject> selectionModelMyObj = new NoSelectionModel<MyObject>();
Handler tableHandler = new SelectionChangeEvent.Handler()
{
@Override
public void onSelectionChange(SelectionChangeEvent event)
{
MyObject clickedObj = selectionModelMyObj.getLastSelectedObject();
Window.alert("Object selected: " + clickedObj);
}
};
// Add the handler to the selection model
selectionModelMyObj.addSelectionChangeHandler( tableHandler );
// Add the selection model to the table
table.setSelectionModel(selectionModelMyObj);
Thanks for all.