Here is my problem. I have simple table with 3 columns (Id, no, text) Id and no combination creates a unique key for each row.
Id - no - text 12 - 1 - my text1 12 - 2 - my text2 13 - 1 - cool 13 - 2 - cool2 13 - 3 - cool3
Now, i want to load these data into a CellTable with 4 columns (the 1st column is checkBoxColumn, the other 3 columns are ID/No/Text textcolum. I also want to put a SelectAllCheckBox on the Header of checkBoxColumn so that when user click on selectAllCheckBox then all the current visible checkBoxes got selected (of cause celltable could have many page but it will select only the visible ones).
Here is the code, i finished all the requirements except 1, that is "when i clicked the selectAllCheckBox, the selectionModel
got selected but the correspondingly checkBoxes were not selected.
Here is the Code.
public static final ProvidesKey<String[]> KEY_PROVIDER = new ProvidesKey<String[]>() {
@Override
public Object getKey(String[] item) {
String[] itemArr={item[0],item[1]};
return item == null ? null : itemArr;
}
};
Here is the main CellTable code:
final MultiSelectionModel<String[]> selectionModel = new MultiSelectionModel<String[]>(KEY_PROVIDER);
final CellTable<String[]> cellTable = new CellTable<String[]>();
Column<String[], Boolean> checkColumn = new Column<String[], Boolean>(
new CheckboxCell(true, false)) {
@Override
public Boolean getValue(String[] object) {
// Get the value from the selection model.
String[] objectArr={object[0],object[1]};
return selectionModel.isSelected(objectArr);
}
};
cellTable.setSelectionModel(selectionModel);
CheckboxHeader selectAllCheckBoxHeader = new CheckboxHeader();
selectAllCheckBoxHeader.addValueChangeHandler(new ValueChangeHandler(){
@Override
public void onValueChange(ValueChangeEvent event) {
// TODO Auto-generated method stub
System.out.println("test");
for (String[] item : cellTable.getVisibleItems()) {
if (!selectionModel.isSelected(item)) {
System.out.println(Arrays.toString(item));
selectionModel.setSelected(item, true);
}
}
}
});
cellTable.addColumn(checkColumn, selectAllCheckBoxHeader);
When I clikced the selectAll, then non of visible checkBoxes got check, but when printout
Set<String[]> selSet=selectionModel.getSelectedSet();
for(String[] s : selSet){
System.out.println("Mine: "+Arrays.toString(s));
}
it showed the currect selected items
Suppose pageSize is 3, then Output :
Mine: [12,1,my text1] Mine: [12,2,my text2] Mine: [13,1,cool]
So how to make visible checkBoxes got selected automatically EXACTLY and CORESPONDINGLY /In TANDEM as the selectionModel
got selected
Note: I also tried cellTable.setSelectionModel(selectionModel, DefaultSelectionEventManager.<String[]> createCheckboxManager());
but not working.
i fixed first, just use
item[]
& then
then use
Finally, it works as i expected