我在 JavaFX 中使用可编辑的 ComboBox。我连接了事件处理程序:
ComboBox cb = new ComboBox ();
cb.getEditor().setOnKeyTyped( ... );
如果我从键盘打字,这很好用。但是,如果我想检测这样的文本更改事件怎么办:
cb.getEditor().setText(val);
事件处理程序不会触发。我找不到任何方法来做到这一点。你有什么提示吗?...谢谢。
改为跟踪 textProperty:
cb.getEditor().textProperty().addListener(new ChangeListener<String>() {
@Override
public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
System.out.println(oldValue + " --> " + newValue);
}
});
private void EditeActionPerformed(java.awt.event.ActionEvent evt)
{
// TODO add your handling code here:
String btntitle=this.Edite.getText();
if(btntitle.compareToIgnoreCase("edite")==0) {
int index=this.Table.getSelectedRow();
this.txtProductId.setText(""+tm.getValueAt(index, 0));
this.txtLastName.setText(""+tm.getValueAt(index, 1));
this.txtFirstName.setText(""+tm.getValueAt(index, 2));
this.txtTel.setText(""+tm.getValueAt(index, 3));
this.jComboBoxGender.setSelectedIndex(tm.getValueAt(index, 4));
this.Edite.setText("update");
}
if(btntitle.compareToIgnoreCase("update")==0) {
int index=Table.getSelectedRow();
int productid=Integer.parseInt(txtProductId.getText());
String lastname=txtLastName.getText();
String firstname=txtFirstName.getText();
String sex=txtTel.getText();
tm.setValueAt(productid,index, 0);
tm.setValueAt(lastname,index, 1);
tm.setValueAt(firstname,index, 2);
tm.setValueAt(sex,index, 3);
cleardata();
}
}