Microsoft SDK for Java

Q179851 HOWTO: Clearing a Selection in an AFC UIChoice Control

The information in this article applies to:

SUMMARY

You can programmatically clear a UIChoice selection by setting its selected index to -1.

MORE INFORMATION

The sample code below demonstrates how to use setSelectedIndex(-1) to clear the item currently selected in the UIChoice. Compile and run the program, select an item in the UIChoice control, then click the Clear UIChoice button. This results in the setSelectedIndex method getting called with a value of -1, clearing the previously selected item from the UIChoice control.

Sample Code

import com.ms.ui.*;
   import com.ms.ui.event.*;
public class ResetUIChoiceDemo implements IUIActionListener {
     UIChoice choice=null;
public ResetUIChoiceDemo(UIChoice choice) {
       this.choice=choice;
     }
public static void main(String args[])
     {
       UIFrame frame = new UIFrame("AFC Frame");
       frame.setSize(320,50);
       frame.setLayout(new UIGridLayout(0,2));
       UIChoice choice=new UIChoice();
       choice.addString("ChoiceA");
       choice.addString("ChoiceB");
       choice.addString("ChoiceC");
       choice.addString("ChoiceD");
       frame.add(choice);
       UIPushButton clearButton=new UIPushButton("Clear UIChoice");
       clearButton.addActionListener(new ResetUIChoiceDemo(choice));
       frame.add(clearButton);
       frame.setVisible(true);
     }
public void actionPerformed(UIActionEvent e) {
       choice.setSelectedIndex(-1);  // Clear the UIChoice selection.
     }
   }

REFERENCES

For more information please see the Microsoft SDK for Java 2.0x documentation, available at http://www.microsoft.com/java/sdk/ This link takes you to a site on microsoft.com.

For the latest Knowledge Base articles and other support information on Microsoft® Visual J++® and the SDK for Java, please see the following pages on the Microsoft Technical Support site:

http://support.microsoft.com/support/visualj/ This link takes you to a site on microsoft.com

http://support.microsoft.com/support/java/ This link takes you to a site on microsoft.com

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