Use case
I have a dialog that contains a datatable and an inputTextArea. The datatable is filled when the user clicks a button. When some (single) row of the datatable is selected, I want the contents of this row to be inserted at the end of the inputTextArea.
Problem
When using the selection attribute of the datatable, I dont have the most recent contents in the inputTextArea. Scenario: I enter "ABC" in my inputTextArea, then click the button, then make my inputTextArea "FFF" and select a row ("dtText") from the datatable. The new contents of the inputTextArea is "ABC dtText" instead of "FFF dtText".
What I tried
I tried to add a new listener but I cannot figure out how to bring it in properly so that it is being called before the selection happens. Found nothing on google or in the PF User Guide.
I was hoping the blur event updates my ruleText, but it doesn't happen.
inputTextArea
<p:inputTextarea value="#{mrBean.selectedElement.ruleTxt}" id="rt1New" rows="20" cols="100" autoResize="false">
<f:ajax event="blur" update="duoDlgForm2" />
</p:inputTextarea>
datatable
<p:dataTable id="qPdt" var="p" value="#{regelBean.queriedParams}" rowKey="#{p}"
selection="#{mrBean.selectedParam}" selectionMode="single">
<p:ajax event="rowSelect" update="#form"/>
<p:column ...
java
public void setSelectedParam(ParamOrDBParamModel selectedParam) {
if(selectedParam != null) {
selectedElement.setRuleTxt(selectedElement.getRuleTxt() + "\n" + selectedParam.getName().trim());
How can I work with the most recent text (selectedElement.getRuleTxt) when I am inside the setSelectedParam method?
PF 4.0
EDIT: if I try jquery, what do I have to insert into my function
$('#qPdt tr').on('click', function() {
// I reach this point, now what? How to get the contents of a row when I know the type?
$("#rt1New").append( ?? )
});
Related
I'm using PrimeFaces v.5 with this version a new component is released that ColumnToggler, when view is rendered, refreshed all checkbox are checked as a default operation.
What I need to do is;
to uncheck some columns when I initialize the view,
make p:columnToggler remember checked and unchecked options when a refresh operation occurs on p:dataTable
In Primefaces 5.2 you can set the p:column visible attribute to false
<p:column ... visible="false">
You can ofcourse use EL in the visible attribute by colum index (reordering becomes more difficult)
<p:column ... visible="#{visibilityModel.visibleList[1]}">
It hides the column at the beginning depending on the return value and you can show/hide the column through the columnToggler checkbox
By using the ajax toggle event
<p:ajax event="toggle" listener="#{viewBean.onToggle}" />
You can update the state of the visibilityModel server side
public void onToggle(ToggleEvent e) {
list.set((Integer) e.getData(), e.getVisibility() == Visibility.VISIBLE);
}
See this PrimeFaces blog entry for full example to actually keep/store the state of the visibility server side so it can be reused later
The best solution depends on the PrimeFaces version you are using.
PrimeFaces >= 5.2
See the other answer in this question.
workaround for < 5.2
You need to solve the first problem manually by overriding Primefaces' own ColumnToggler.prototype.render() function
first add styleClass="not-show-at-start" to your column that you want to insvisibe at start to access in javascript render() function;
<!--This column will not be shown at start-->
<p:column headerText="Cloumn to hide initially" width="70" styleClass="not-show-at-start">
<h:outputText value="#{entityVar.nmProcessOwner}" />
</p:column>
<!--This column will be shown at start-->
<p:column headerText="Column to show initially" width="70">
<h:outputText value="#{entityVar.nmProcessOwner}" />
</p:column>
secondy create a javascript file and paste code below in it, this function will re assign render function of ColumnToggler
PrimeFaces.widget.ColumnToggler.prototype.render = function() {
//variable for creating id referance for each checkbox in ColumnToggler
var id=0;
this.columns = this.thead.find("> tr > th:visible:not(.ui-static-column)");
this.panel = $("<div></div>").attr("id", this.cfg.id).addClass("ui-columntoggler ui-widget ui-widget-content ui-shadow ui-corner-all").append('<ul class="ui-columntoggler-items"></ul').appendTo(document.body);
this.itemContainer = this.panel.children("ul");
for (var a = 0; a < this.columns.length; a++) {
id++;
var b = this.columns.eq(a);
$('<li class="ui-columntoggler-item"><div class="ui-chkbox ui-widget"><div id="cb'+id /*creating id for each checkbox for accessing later*/+'" class="ui-chkbox-box ui-widget ui-corner-all ui-state-default ui-state-active"><span class="ui-chkbox-icon ui-icon ui-icon-check"></span></div></div><label>' + b.children(".ui-column-title").text() + "</label></li>").data("column", b.attr("id")).appendTo(this.itemContainer);
//access clumns using class reference(not-show-at-start) created in jsf page
if(b.hasClass( "not-show-at-start")){
//access checkbox using id attribute created above and uncheck it
//this will hide columns that have "not-show-at-start" class
this.uncheck($('#cb'+id));
}
}
this.hide();
}
An alternative solution could be to set directly the checkbox you want to uncheck after you load the page. It's a less elegant solution but it works. I did it this way:
<h:body onload="javascript:
$('.ui-chkbox-box')[18].click();">
By this way, after loading the page, javascript hide the column referenced by chechbox number 18 but the checkbox is still present on the columnToggler for the user to check it and show the column again if he wants to.
Greetings
Complementing Damián answer:
$(function() {
$('.ui-columntoggler-items .ui-chkbox .ui-chkbox-box').click();
});
This will do the job, clicking the columntoggler chkbox after page load..
#Edit
You should set as toggleable="false" the columns you don't want to hide (always displayed)
Reason: if you use the javascript method to "override" primefaces toggler, sometimes the datatable column shown can be displayed wrong in the layout (out of the table size, for an example, like happened with me), that's why i decided to use the method described above..
What i want to do is; when user clicks to row, it will select the row.When user double clicks to row, it will start cell editing. At Primefaces showcase(http://www.primefaces.org/showcase/ui/d ... nstant.jsf) it says "Instant row selection, dblclick selection and unselection is implemented using ajax behaviors." but i couldnt find where they implemented dblclick selection. Is there a way to start cell editing event with double click event?
<p:ajax event="rowDblselect">
From PrimeFaces Users Guide
Use
<p:ajax event="rowDblselect" />
in your <p:dataTable /> like this:
<p:dataTable
id="yourTableId"
value="#{yourBean.items}"
selectionMode="single"
selection="#{yourBean.selectedItem}"
var="item"
rowKey="#{item.id}">
<p:ajax
event="rowDblselect"
listener="#{yourBean.onRowDoubleClick}"
update="#form:theComponentYouWantToUpdate"
global="false" />
<!-- your columns here -->
</p:dataTable>
In your bean/controller use:
import org.primefaces.event.SelectEvent;
public void onRowDoubleClick(final SelectEvent event) {
YourObject obj = (YourObject) event.getObject();
// rest of your logic
}
Try setting dblClickSelect="true" on your table.
From the documentation:
By default, row based selection is enabled by click event, enable dblClickSelect so that clicking double on a row does the selection.
I have data table like below:
<p:dataTable id="transactionTableID" binding="#{transactionReportBean.dataTable}"
value="#{transactionReportBean.summarizedDateWiseTransactionList}"
var="transacVAR" rowKey="#{transacVAR.OID}" style="float:center;">
<p:column headerText="#{build.reportSelection}">
<p:selectOneMenu id="" value="#{transactionReportBean.summaryTxnReportSelected}" >
<f:selectItem itemLabel="-Select One-" itemValue="-Select One-"/>
<f:selectItem itemLabel="#{build.matchedreport}" itemValue="#{build.matchedreport}"/>
<f:selectItem itemLabel="#{build.carryforwardreport}" itemValue="#{build.carryforwardreport}"/>
<f:selectItem itemLabel="#{build.exceptionreport}" itemValue="#{build.exceptionreport}"/>
</p:selectOneMenu>
<p:commandButton update="#form" value="Generate" ajax="false"
actionListener="#{transactionReportBean.getReportSelected}" />
</p:column>
</p:dataTable>
And an action listener method like below:
public void getReportSelected(){
if(this.SummaryTxnReportSelected.equalsIgnoreCase("-Select One-")||this.SummaryTxnReportSelected.equalsIgnoreCase(null)){
this.message = AlgoMessageHandler.getMessage(AlgoMessageHandler.USER_MSG, "ERR0048");
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR,
this.getMessage(), AFTSConstants.BLANK_STRING));
} else {
this.selectedDtTxn= (TransactionsSummaryReportVO) dataTable.getRowData();
System.out.println("listener called "+this.getSummaryTxnReportSelected()+" Selected transaction ID "+selectedDtTxn.getExecutionID());
String reportname = generateJasperReport(this.getSummaryTxnReportSelected(),AFTSConstants.SUMMARY_TXN_REPORT,this.selectedDtTxn);
System.out.println("Report Name"+reportname);
this.summaryReportStored= AFTSConstants.SUMMARY_REPORT_STORED_PATH+reportname+".pdf";
System.out.println(this.summaryReportStored);
this.setRenderGenerateButton(false);
}
}
That method is about to generate report based on the dropdown item we are selecting. In my table I have 10 rows, each row contains one dropdown having 3 items. There is a "generate" button. After selection of dropdown items and clicking the "generate" button, for first 9 rows it doesn't give component IDs and for 10th row it's working.
Here the problem is not about generating report, the problem is JSF doesn't take different component IDs for each dropdown in each row. I tried id="reportID", but no success. I tried to give row key value of table rowKey="#{transacVAR.OID}" as id="#{transacVAR.OID}", but it throws an exception like "empty component id".
How am I supposed to solve this problem?
Your problem has nothing to do with component IDs. Your problem is caused because you're binding submitted values of all rows to one and same bean property. JSF processes the submitted values based on the order the input elements appear in the tree. So, JSF will call the very same setter method with the submitted value for every single row until the last row is reached. You end up with the value of the last row. If you have placed a breakpoint on the setter method, you'd have noticed that it's subsequently been called with different values from every individual row.
You need to bind the value to the currently iterated row object instead.
<p:selectOneMenu value="#{transacVAR.summaryTxnReportSelected}">
I want to get the selected row of my dataTable, directly if the user selects a row.
I have added
<p:dataTable id="dataTableID" var="row"
value="#{bean.value}"
rowKey="${row.id}"
selection="#{bean.selectedValue}" selectionMode="single">
It is just possible to get it after clicking on a button.
There are two ajax-events for instant row selection in primefaces dataTable. One for the selection and one for the unselection.
<p:dataTable ..>
<p:ajax event="rowSelect" listener="#{yourBean.someListener}"/>
...
</p:dataTable>
Now you can access the selected item (of class Foo) like this:
public void someListener(SelectEvent event) {
(Foo) event.getObject() // cast "Object" to "Foo"
}
For additional information take a look at the primefaces showcase first: http://www.primefaces.org/showcase/ui/datatableRowSelectionInstant.jsf
I have a bean with 5 properties.In which user has to enter the values and save the values.The saved values are displayed in a datatable by ajax functionality.It is working fine.The problem is when i want to edit the record, i have the edit button associated with every row of the table.When edit button is clicked i have to get the record and show the record in editable format above the datatable.What component i have to use to populate the data for editing ? Edit button is also an ajax request.I used panelGrid for that but i did not get them.
could you suggest the right way to solve this one.
Thank you all.........
Use the same datatable for editing.
If you click edit button, store the selected value or index in the backing bean and
render an output component like h:outputText if rowValue != selectedItem
render an input component like h:inputText if rowValue == selectedItem
in your dataTable.
Here is an example:
<h:dataTable value="#{myBean.itemList}" var="item">
<h:column>
<h:outputText value="#{item.someValue}"
rendered="#{item != selectedItem}"/>
<h:inputText value="#{item.someValue}"
rendered="#{item == selectedItem}" />
</h:column>
</h:dataTable>