Primefaces惰性数据表：放置我自己的过滤器而不是GlobalFilter [英] Primefaces lazy datatable: put my own filter instead of GlobalFilter

问题描述

我想在惰性数据表上添加一些额外的过滤器，但是这些字段不是基于我拥有的字段（实际上我的过滤器将是dateFrom和dateTo，而我只有一个字段 Date）。

I d like to add some extra filters on my Lazy Data Table but these fields are not based on the fields I have (actually my filter would be dateFrom and dateTo and I only have a field "Date").

我想在数据表顶部添加两个额外的过滤器字段，而不是全局过滤器：

I'd like to have two extra filter fields on the top of my datatable instead of a global filter:

    <f:facet name="header">
    <p:outputPanel>
    <p:inputText id="globalFilterOther" onkeyup="PF('myTable').filter()" style="display:inlineblock;"/>
    <p:inputText id="globalFilterAnOtherFilter" onkeyup="PF('myTable').filter()" style="display:inlineblock;"/>
    </p:outputPanel>
    </f:facet> 

问题是，一旦我将id更改为除全局过滤器之外的其他内容，就不会检测到任何过滤器。我该怎么办？

The problem is that as soon as I change id into something else than global Filter, no filter is detected. How could I do?

推荐答案

最简单的方法是将两个（或更多）额外的过滤器字段绑定到 Map< String，String> 。例如，将一个名为 filters 的地图添加到您的bean：

The easiest way is binding the two (or more) extra filter fields to a Map<String,String>. For example add a map called filters to your bean:

private Map<String,String> filters = new HashMap<>();
// Include getter and setter

...并将过滤器绑定到映射：

... and bind the filters to properties of the map:

<p:inputText value="#{myBean['field']}"
             onkeyup="PF('myTable').filter()"/>
<p:inputText value="#{myBean['otherField']}"
             onkeyup="PF('myTable').filter()"/>

现在，您唯一需要做的就是在 p：dataTable ，然后在事件过滤器中添加 filters 映射，就可以完成了。

Now, the only thing you need to do is adding a filter listener to the p:dataTable, and there add the filters map to the event filters and you are done.

Bean：

public void onFilter(FilterEvent event){
  event.getFilters().putAll(filters);
}

XHTML：

<p:dataTable ...>
  <p:ajax event="filter" listener="#{myBean.onFilter}"/>
</p:dataTable>

这篇关于Primefaces惰性数据表：放置我自己的过滤器而不是GlobalFilter的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！