网格中的 Vaadin 过滤器 [英] Vaadin filters in Grid
本文介绍了网格中的 Vaadin 过滤器的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在 Vaadin 中遇到过滤器问题.为网格中的每一列制作过滤器很容易.但现在我需要为网格中的所有单元格做一个过滤器.我不知道该怎么做.
i have problem with filters in Vaadin. Its easy to make filters for each column in Grid. But now i need to do one filter for all cells in Grid. I don't know how to do this.
我试图在这个例子中这样做,但它不起作用
I was trying to do this like in this example, but it doesn't worked
Filter f =
new Or(new SimpleStringFilter(Columns.SEARCH.id(), "rpm-diastolic", true, false),
new Or(new SimpleStringFilter(Columns.SEARCH.id(), "rpm-systolic", true, false)),
new Or(new SimpleStringFilter(Columns.SEARCH.id(), "rpm-weight", true, false))) ;
container.addContainerFilter(f);
推荐答案
我为我的案例创建了一个解决方案.我希望对某人有帮助
I created a solution to my case. I hope that help somebody
//In my case, I created a class that extends Grid.
public class GridExample extends Grid {
...
//Method to add a filter on grid
public void setFilterGrid(BeanItemContainer<?> beanType) {
//This create a HeaderRow to add filter fields
HeaderRow filterRow = this.appendHeaderRow();
for (Column column : getColumns()) {
//For each column from the grid
HeaderCell cellFilter = filterRow.getCell(column.getPropertyId());
//Add a textfield
cellFilter.setComponent(createFieldFilter(beanType, column));
}
}
//This create a TextField to filter the information
private TextField createFieldFilter(final BeanItemContainer<?> container, final Column column) {
TextField filter = new TextField();
filter.setImmediate(true);
filter.addTextChangeListener(new TextChangeListener(){
@Override
public void textChange(TextChangeEvent event) {
String newValue = event.getText();
//Remove the previous filter
container.removeContainerFilters(column.getPropertyId());
if (newValue != null && !newValue.isEmpty()) {
//Filter the information
container.addContainerFilter(new SimpleStringFilter(column.getPropertyId(), newValue, true, false));
}
recalculateColumnWidths();
}
});
return filter;
}
}
欲了解更多信息,请点击此处:http://krishnasjavaworld.blogspot.com.br/2015/04/step-by-step-vaadin-grid-part-3filters.html
For more information check here: http://krishnasjavaworld.blogspot.com.br/2015/04/step-by-step-vaadin-grid-part-3filters.html
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