Question

我正在尝试使用rich:suggestionbox。我浏览了Richfaces提供的教程。重要的是我使用的是Richfaces 3.1.4 JAR。在建议框中，我只是尝试在开始时填充一些默认数据，但建议框根本没有渲染。当我尝试在Firefox中查看错误控制台时，会显示以下错误消息：

Error: this.element is null Source File: http://localhost:9080/sample/a4j_3_1_4.GAorg/richfaces/renderkit/html/scripts/suggestionbox.js.faces Line: 2

JSF CODE

<a4j:region selfRendered="true" id="region1">
    <h:inputText id="fx" />
    <rich:suggestionbox width="50" height="50" for="fx" nothingLabel="HI"
        suggestionAction="#{basic.inputData}" fetchValue="#{basic.selectedData}"
        var="result" id="suggestion">
        <h:column>
            <h:outputText value="#{result.value}" />
        </h:column>
    </rich:suggestionbox>
    <h:commandButton id="submit" value="show data"
        action="#{basic.submit}"></h:commandButton>
</a4j:region>

MANAGED BEAN

enter code here
    private List<SelectedList> inputData; // Setter
    private String selectedData;   // Getter and Setter

    public List<SelectedList> getInputData() {          //Getter
    if(inputData!=null){
        inputData = new ArrayList<SelectedList>();
        inputData.add(new SelectedList("1","equal"));
        inputData.add(new SelectedList("2","not equal"));
        inputData.add(new SelectedList("3","greater"));
        inputData.add(new SelectedList("4","lesser"));
    }
    return inputData;
}

如果你愿意，请帮助。

Answer 1

已编辑：更改代码后：

更改方法inputData，如下所示：

（当然，我相信您需要根据建议字符串调整inputdata。）

public List<Capital> inputData(Object suggest) {
        String pref = (String)suggest;
        //if (suggest...) - add this! to complete according the word
        ArrayList<SelectedList> inputData = new ArrayList<SelectedList>();

        inputData.add(new SelectedList("1","equal"));
        inputData.add(new SelectedList("2","not equal"));
        inputData.add(new SelectedList("3","greater"));
        inputData.add(new SelectedList("4","lesser"));

        return inputData;
    }

和for：

fetchValue="#{basic.selectedData}"

您需要将其更改为：fetchValue="#{result.value}"其中，值为SelectedList中的getter方法。

如果您遗失它，它将不会显示..

查看Suggestion Box Demo

的示例

rich：suggestionbox错误 - this.element为null

1 个答案: