Summary
ListBox is a class provided by GWT. This article provides examples for using a ListBox.
Solution
See examples below.
Examples
Create a ListBox, make it visible but greyed out
final ListBox listBox = new ListBox();
listBox.addItem("Item1","Item1 Value");
listBox.addItem("Item 2", "Item2 Value");
listBox.setEnabled(false);
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Get the value of the item the user has selected in the drop down list
VerticalPanel verticalPanel = new VerticalPanel();
final ListBox listBox = new ListBox();
listBox.addItem("Item1","Item1 Value");
listBox.addItem("Item 2", "Item2 Value");
verticalPanel.add(listBox);
Button demoButton1 = new Button("Get the Value of the ListBox");
demoButton1.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
Window.alert("Value of ListBox: " + listBox.getValue(listBox.getSelectedIndex()));
}
});
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Set an empty value and make it appear as the first item and make it auto select
final ListBox listBox = new ListBox();
listBox.addItem("", "");
listBox.addItem("Item1","Item1 Value");
listBox.addItem("Item 2", "Item2 Value");
verticalPanel.add(listBox);
Button demoButton1 = new Button("Get the Value of the ListBox");
demoButton1.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
Window.alert("Value of ListBox: " + listBox.getValue(listBox.getSelectedIndex()));
}
});
verticalPanel.add(demoButton1);
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