Set selected row from backing bean in primefaces datatable

jsf-2, primefaces

Solution

Just set the value behind `selection="#{commonTableBean.selectedCablePathTblRow}"`.

public void test(){
    selectedCablePathTblRow = cablepath;
}

Problem

I am using primefaces datatable with clickable rows and I need to find way how to set selected row from backing bean. There is my datatable definition: ``` <p:dataTable id="cablePathTable" var="cablePath" value="#{commonTableBean.cableLazyModel}" rows="100" selectionMode="single" selection="#{commonTableBean.selectedCablePathTblRow}" rowIndexVar="rowIndex" widgetVar="datatableVar" emptyMessage="---"> <p:ajax event="rowSelect" process="@this" update=":form:portFieldset" /> <p:column headerText="No"> <h:outputText value="#{cablePath.column1}" /> </p:column> <p:column headerText="Port A"> <h:outputText value="#{cablePath.column4}" /> </p:column> <p:column headerText="Port B"> <h:outputText value="#{cablePath.column5}" /> </p:column> ``` I have tried following approach, but with no success. In backing bean I have added method: ``` public void test(){ DataTable dataTable = (DataTable) FacesContext.getCurrentInstance().getViewRoot().findComponent("form:cablePathTable"); dataTable.setRowIndex(2); } ``` And I have added test butoon to the XHTML page: ``` <p:commandButton process="@this" update=":form:cablePathTable" value="set2row" action="commonTableBean.test"/> ``` But nothig is changed on the datatable, selection didn't change... Please any ideas how to solve this problem?

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