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我正在使用PrimeFaces 5.1，myfaces 2.0。以前是使用PrimeFaces 3.5，它工作正常。我有p：dataLink和p：commandLink。我有一個服務器端方法來清除過濾器。當我點擊p：dataTable中的p：commandLink時，它會轉到另一個頁面，但控制檯顯示「Uncaught TypeError：無法讀取未定義的屬性'clearFilters'」。它只發生在點擊p：commandLink時。任何想法爲什麼？主線程上的同步xmlhttprequest被棄用導致意外的行爲
XHTML
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td valign="top" width="620"><p:dataTable styleClass="dataTable" id="db1001_datatable_dashboards"
paginator="true" rows="50"
paginatorTemplate="{FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="10,25,50,75,100,200"
resizableColumns="true" paginatorPosition="bottom"
value="#{pc_Db1001.w_dashboard.listOfDashboards}"
var="varlistOfDashboards" filteredValue="#{pc_Db1001.w_dashboard.listOfFilteredDashboards}"
widgetVar="listOfDashboards">
<p:ajax event="filter" listener="#{pc_Db1001.filterListener}"></p:ajax>
<p:column id="db1001_column_selector" width="20">
<p:selectBooleanCheckbox styleClass="selectBooleanCheckbox"
id="db1001_checkbox_checkbox"
value="#{varlistOfDashboards.selected}"></p:selectBooleanCheckbox>
<f:attribute value="top" name="valign" />
</p:column>
<p:column id="db1001_column_chart_type" style="text-align: left;font-weight: 400"
width="100" sortBy="#{varlistOfDashboards.chart_type_dn}"
resizable="true" headerText="#{msg.db1001_gridheader_chart_type}"
filterBy="#{varlistOfDashboards.chart_type_dn}"
filterMatchMode="contains"
filterStyle="width: 90px;align: left;"
filterStyleClass="filterInputText"
filterValue="#{pc_Db1001.w_dashboard.fv_chart_type_dn}">
<h:outputText styleClass="outputGridText"
id="db1001_gridoutput_chart_type_dn"
value="#{varlistOfDashboards.chart_type_dn}"></h:outputText>
<f:attribute value="true" name="nowrap" />
<f:attribute value="top" name="valign" />
</p:column>
<p:column id="db1001_column_category" style="text-align: left;font-weight: 400"
width="90" sortBy="#{varlistOfDashboards.category_dn}"
resizable="true" headerText="#{msg.db1001_gridheader_category}"
filterBy="#{varlistOfDashboards.category_dn}"
filterMatchMode="contains"
filterStyle="width: 80px;align: left;"
filterStyleClass="filterInputText"
filterValue="#{pc_Db1001.w_dashboard.fv_category_dn}">
<h:outputText styleClass="outputGridText"
id="db1001_gridoutput_category"
value="#{varlistOfDashboards.category_dn}"></h:outputText>
<f:attribute value="true" name="nowrap" />
<f:attribute value="top" name="valign" />
</p:column>
<p:column id="db1001_column_shortname" style="text-align: left;font-weight: 400"
width="350" sortBy="#{varlistOfDashboards.shortname}"
resizable="true"
headerText="#{msg.db1001_gridheader_shortname}"
filterBy="#{varlistOfDashboards.shortname}"
filterMatchMode="contains"
filterStyle="width: 340px;align: left;"
filterStyleClass="filterInputText"
filterValue="#{pc_Db1001.w_dashboard.fv_shortname}">
<p:commandLink ajax="false" styleClass="commandLink"
id="db1001_commandlink_shortname"
action="#{pc_Db1001.doDb1001_commandlink_shortnameAction}">
<h:outputText id="db1001_gridoutput_shortname"
styleClass="outputGridText_80px"
value="#{varlistOfDashboards.shortname}"></h:outputText>
<f:param name="db1001_click_rptsysid"
value="#{varlistOfDashboards.rptsysid}"></f:param>
</p:commandLink>
<f:attribute value="true" name="nowrap" />
<f:attribute value="top" name="valign" />
</p:column>
<p:column id="db1001_column_maintain" width="60">
<f:facet name="header">
</f:facet>
<p:commandLink ajax="false" styleClass="commandLink" id="link1"
action="#{pc_Db1001.doDb1001_commandlink_configureAction}">
<h:outputText id="db1001_commandlink_maintain"
styleClass="outputGridText_px"
value="#{msg.db1001_commandlink_configure}"></h:outputText>
<f:param name="db1001_click_rptsysid"
value="#{varlistOfDashboards.rptsysid}"></f:param>
</p:commandLink>
<f:attribute value="true" name="nowrap" />
<f:attribute value="left" name="align" />
<f:attribute value="top" name="valign" />
</p:column>
</p:dataTable>
</td>
</tr>
</tbody>
</table>
請求Bean
private void setFiltersNull() {
String _LOC = "[Db1001: setFiltersNull]";
W_dashboard _w = getW_dashboard();
_w.setListOfFilteredDashboards(null);
_w.setFv_chart_type_dn(null);
_w.setFv_category_dn(null);
_w.setFv_shortname(null);
}
public void clearFilters() {
String _LOC = "[Db1001: clearFilters]";
W_dashboard _w = getW_dashboard();
try {
setFiltersNull();
//get datatable
DataTable table = (DataTable) findComponentInRoot("db1001_datatable_dashboards");
if (table != null) {
//clear sort
ValueExpression ve = table.getValueExpression("sortBy");
if (ve != null) {
table.setValueExpression("sortBy", null);
}
//clear filtering
String _widgetVar = table.getWidgetVar();
String jsFunctionStr = "PF('" + _widgetVar + "').clearFilters();";
RequestContext context = RequestContext.getCurrentInstance();
context.execute(jsFunctionStr);
//reset datatable
table.reset();
}
}catch (Exception e) {
}
}
public void filterListener(FilterEvent filterEvent) {
String _LOC = "[Db1001: filterListener]";
// System.out.println(_LOC + "1.0");
W_dashboard _w = getW_dashboard();
try {
//Get datatable
DataTable table = (DataTable)filterEvent.getSource();
//Clear checkbox in main list
List _main_list = _w.getListOfDashboards();
List _filtered_list = _w.getListOfFilteredDashboards();
if (!isEmptyNull(_main_list)) {
for (Iterator iter = _main_list.iterator(); iter.hasNext();) {
W_dashboard _wm = (W_dashboard) iter.next();
_wm.setSelected(false);
}
}
//Clear checkbox in filtered list
if (!isEmptyNull(_filtered_list)) {
for (Iterator iter = _filtered_list.iterator(); iter.hasNext();) {
W_dashboard _wm = (W_dashboard) iter.next();
_wm.setSelected(false);
}
}
//Retain filters by setting to managed bean
//From listing page, click new, cancel out to listing page, the filter is not "remembered"
Map filters = table.getFilters();
System.out.println("1.0 " + " filters:" + filters);
if(filters != null) {
//dashboardid
String _filterText = (String)filters.get("chart_type_dn");
if(!isEmptyNull(_filterText)) {
_w.setFv_chart_type_dn(_filterText);
}else {
_w.setFv_chart_type_dn(null);
}
//category
_filterText = (String)filters.get("category_dn");
if(!isEmptyNull(_filterText)) {
_w.setFv_category_dn(_filterText);
}else {
_w.setFv_category_dn(null);
}
//description
_filterText = (String)filters.get("shortname");
if(!isEmptyNull(_filterText)) {
_w.setFv_shortname(_filterText);
}else {
_w.setFv_shortname(null);
}
}
}catch (Exception e) {
}
}
public String doDb1001_commandlink_shortnameAction() {
String _LOC = "[Db1001: doDb1001_commandlink_shortnameAction]";
// System.out.println(_LOC + "1.0");
Map _rp = getRequestParam();
String _rptsysid = (String) _rp.get("db1001_click_rptsysid");
W_dashboard _w = getW_dashboard();
if (_rptsysid != null) {
Integer _rightid = _w.getDashboardRightsid(_rptsysid);
if (_rightid == null) {
showCommonMessage_ByKey("db1001_message_delete_noaccessright_setup");
return null;
} else {
if (cannotAccess(_rightid.intValue())) {
showCommonMessage_ByKey_With3Parameter("db1001_message_delete_noaccessright"
, _rightid, null, null);
return null;
}
}
}
//clear sorting and filtering
clearFilters();
return "db1001_commandlink_shortname_success";
}
在控制檯上的錯誤
Uncaught TypeError: Cannot read property 'clearFilters' of undefined(…)
(anonymous function) @ db1001.xhtml:534
i @ jquery.js?ln=primefaces&v=5.1:25
fireWith @ jquery.js?ln=primefaces&v=5.1:25
ready @ jquery.js?ln=primefaces&v=5.1:25
bZ @ jquery.js?ln=primefaces&v=5.1:25
嘗試打印出來jsFunctionStr，並在控制檯 –
@ JaqenH'ghar運行它如何運行，在控制檯？在非ajax commandLink中調用clearFilters（）是否重要？ – bittersour
@ JaqenH'ghar我試圖在控制檯中運行它。同樣的錯誤。 – bittersour