ArcGIS Engine Developer Guide

BUILDING APPLICATIONS WITH VISUAL JAVABEANS
import com.esri.arcgis.beans.TOC.esriTOCControlEdit;
2. In the buildAndShow() method, set the labelEdit to manual:
. . .
// Set label editing to manual.
toc.setLabelEdit(esriTOCControlEdit.esriTOCControlManual);
// Add popup menu items.
. . .
3. In the addEventListeners() method, add an event listener to the toc component
for the onEndLabelEdit event, as an anonymous inner class, using
ITOCControlEventsAdapter. After adding this, your addEventListeners()
method should look like this:
private void addEventListeners() throws IOException {
. . .
toc.addITOCControlEventsListener(new ITOCControlEventsAdapter(){
public void onEndLabelEdit(
ITOCControlEventsOnEndLabelEditEvent labelEditEvt)
throws IOException {
String newLabel = labelEditEvt.getNewLabel();
// If the new label is an empty string, prevent the edit.
if (newLabel.equals(""))
labelEditEvt.setCanEdit(false);
}
});
}
4. Run the application. To edit a map, layer, heading, or legend class label in the
toc component, click it once, then click it a second time to invoke label
editing. Try replacing the label with an empty string. You will be able to replace
the label with strings other than an empty string. You can use the Esc
key on the keyboard at any time during the edit to cancel it.
316 • ArcGIS Engine Developer Guide