Question

我有一个TwinColSelect和一个Textfield我用它来过滤表的内容，它运行得很好，但问题是过滤器过滤了TwinColSelect的两个列的内容，我想知道它是否可能它只影响左栏。

我的代码现在看起来像这样：

    final TwinColSelect select = new TwinColSelect();
    select.setItemCaptionPropertyId(PersistenceLoinc.CORPUS_NOMBRE);

    TextField filtro = new TextField();

    filtro.addTextChangeListener(new TextChangeListener() {


        private static final long serialVersionUID = 1L;
        SimpleStringFilter filter = null;

        @Override
        public void textChange(TextChangeEvent event) {
            Filterable f = (Filterable) select.getContainerDataSource();

            if (filter != null) {
                f.removeContainerFilter(filter);
            }
            filter = new SimpleStringFilter(select.getItemCaptionPropertyId(), event.getText(), true, false);
            f.addContainerFilter(filter);
        }
    });

谢谢，克里斯。

Answer 1

我在问题的评论部分中遵循了@andreSchild的建议，并开发了以下完美运作的类：

public class TwinColSelectStringFilter implements Container.Filter {

final SimpleStringFilter spf;
final TwinColSelect select;
final Object propertyId;

public TwinColSelectStringFilter(Object propertyId, String filterString, boolean ignoreCase, boolean onlyMatchPrefix, TwinColSelect select) {
    spf = new SimpleStringFilter(propertyId, filterString, ignoreCase, onlyMatchPrefix);
    this.select = select;
    this.propertyId=propertyId;
}

@Override
public boolean passesFilter(Object itemId, Item item) throws UnsupportedOperationException {
    if(select.getValue() != null && (select.getValue() instanceof Collection)) {
        if (((Collection<Integer>) select.getValue()).contains(itemId)) {
            return true;
        }
    }
    return spf.passesFilter(itemId, item);
}

@Override
public boolean appliesToProperty(Object propertyId) {
    return spf.appliesToProperty(propertyId);
}

}

Vaadin TwinColSelect只过滤一列

1 个答案: