Hi,
I have a button which allows the user to remove an item from the
system by selecting a Radio Button and pressing 'Remove'. The system
then deletes the item from the database and updates the list of radio
buttons i.e. it removes the radio button that was selected for
deletion. However, I have a bug in that the system does not remove the
radio button completely, it just moves everything below the removed
item 'up'. For example:
Item1
Item2
Item3
Item4
If we delete Item2, item2 disappears, it moves item3 and item4 up so
we have a list that looks like this:
Item1
Item3
Item4
Item4
So item4 appears twice. I need to obviously remove the bottom radio
button when an item is deleted but im a little stuck on how to this,
with the way I structures the code. Please can someone offer a
soluton?
Here is my code:
//Remove Item
removeItemButton.addClickListener(new ClickListener() {
public void onClick(Widget sender) {
boolean msg = Window.confirm("Are you sure you wish to
remove "
+ changedRadioValue + " from the database?");
if (msg = true){
String removeData = "DELETE FROM
catering.items_table WHERE
itemName = '" + changedRadioValue + "'";
ServerService rpc = new ServerService();
rpc.removeItem(removeData, callback2);
}
}
});
AsyncCallback callback2 = new AsyncCallback()
{
public void onFailure(Throwable caught)
{
updateItemsRootPanel.add(new HTML("Failed:" +
caught.getMessage()));
}
public void onSuccess(Object result)
{
Window.alert(changedRadioValue + " was successfully removed
from the database.");
getStatusDataFromServer();
}
};
ClickListener listener = new ClickListener()
{
public void onClick(Widget sender)
{
changedRadioValue = MyRadioButton.getCurrentText();;
}
};
private void getStatusDataFromServer(){
ServerService.getInstance().getStatusData(
new ServerStatsUpdater());
}
//inner class setting up the radio buttons
class ServerStatsUpdater extends AbstractAsyncHandler
{
public void handleFailure(Throwable caught){
}
public void handleSuccess(Object result){
ServerSQLData data = (ServerSQLData) result;
for (int i = 0; i<data.itemNameArrayList.size();i++){
radioButtonText =
data.itemNameArrayList.get(i).toString();
RadioButton rb = new MyRadioButton("group",
radioButtonText);
rb.addClickListener(listener);
scrollBoxGrid.setWidget(i, 0, rb);
}
for (int i = 0;
i<data.itemQuantityArrayList.size();i++){
Label quantityInStock = new Label();
quantityInStock.setText(" " +
data.itemQuantityArrayList.get(i).toString());
scrollBoxGrid.setWidget(i, 2, quantityInStock);
}
}
}
Any help much appreciated.
Regards,
Jack
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