动态创建的 RowSelection p:datatable return 总是第 0 行

Question

我正在处理动态table的任务，从任何查询中，我都完成了所有任务不显示并返回该行中的值。

托管 bean 是

/*
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import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.faces.bean.ApplicationScoped;
import javax.faces.bean.ManagedBean;
import org.primefaces.PrimeFaces;

@ManagedBean(name="liveRangeService", eager = true)
@ApplicationScoped

public class LiveRangeService implements Serializable {

    private List< Map<String, String> > tableData;
    private Map<String, String> selectedData;
    private List< Map<String, String> > filteredData;
    private int Sr;
    private List<String> tableHeaderNames;
    private String tableColWidths;
    private List< Map<String, String> > selectedRow;
    private String RowSelected;

    public String getRowSelected() {
        return RowSelected;
    }

    public void setRowSelected(String RowSelected) {
        this.RowSelected = RowSelected;
    }

    public Map<String, String> getSelectedData() {
        return selectedData;
    }

    public void setSelectedData(Map<String, String> selectedData) {
        this.selectedData = selectedData;
    }

    public List<Map<String, String>> getTableData() {
        return tableData;
    }
    public List<String> getTableHeaderNames() {
        return tableHeaderNames;
    }

    public LiveRangeService() {
    }

    public void LiveRangeServicesss(String Qry) {
        System.out.println("Qry: " + Qry);
        tableData = new ArrayList< Map<String, String> >();
        tableHeaderNames = new ArrayList<String>();
        tableHeaderNames.add("ID");
        tableHeaderNames.add("Title");
        tableHeaderNames.add("Opn_Amt");
        tableHeaderNames.add("Smr_Amt");

        {
            Map<String, String> playlist = new HashMap<String, String>();
            playlist.put("ID", "1010001");
            playlist.put("Title", "Share Capital - Mr. 1");
            playlist.put("Opn_Amt", "0");
            playlist.put("Smr_Amt", "0");
            tableData.add(playlist);
        }

        {
            Map<String, String> playlist = new HashMap<String, String>();
            playlist.put("ID", "1010002");
            playlist.put("Title", "Share Capital - Mr. 2");
            playlist.put("Opn_Amt", "0");
            playlist.put("Smr_Amt", "0");
            tableData.add(playlist);
        }

        {
            Map<String, String> playlist = new HashMap<String, String>();
            playlist.put("ID", "1010003");
            playlist.put("Title", "Share Capital - Mrs. 3");
            playlist.put("Opn_Amt", "0");
            playlist.put("Smr_Amt", "0");
            tableData.add(playlist);
        }

        PrimeFaces.current().ajax().update("form:dlgTBL");
        PrimeFaces.current().executeScript("PF('dlg').show();");
    }

    public List<Map<String, String>> getSelectedRow() {
        try {System.out.println("Selected Row! " + selectedRow.size());} catch (Exception e) {}

        return selectedRow;
    }

    public void setSelectedRow(List<Map<String, String>> selectedRow) {
//        System.out.println( "selected size: " + selectedRow.size() );
        this.selectedRow = selectedRow;
    }

    public String getTableColWidths() {
        return tableColWidths;
    }

    public void setTableColWidths(String tableColWidths) {
        this.tableColWidths = tableColWidths;
    }

    public List<Map<String, String>> getFilteredData() {
        return filteredData;
    }

    public void setFilteredData(List<Map<String, String>> filteredData) {
        this.filteredData = filteredData;
    }

    public void onRowSelect() {
        System.out.println("Select Table Values: " + this.Sr + ", " + this.RowSelected);
    }

    public int getSr() {
        return Sr;
    }

    public void setSr(int Sr) {
        this.Sr = Sr;
    }
}

而 html 部分是

<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
                xmlns:ui="http://java.sun.com/jsf/facelets"
                xmlns:h="http://java.sun.com/jsf/html"
                xmlns:f="http://java.sun.com/jsf/core"
                xmlns:p="http://primefaces.org/ui">
    <h:head>
        <title>Facelet Title</title>
    </h:head>
    <h:body>
        <h:form id="form">
            <p:messages>
                <p:autoUpdate />
            </p:messages>
            <p:commandButton value="Update Grid" action="#{liveRangeService.LiveRangeServicesss('Select ID, Title, Opn_Amt, Smr_Amt From Coa32 Order By Title')}" id="cmdUpdate" />

            <p:dialog id="dlgTBL" modal="true" showEffect="bounce" widgetVar="dlg" resizable="false">
                <p:dataTable var="result" id="tbl" widgetVar="dtlTBL"
                                    value="#{liveRangeService.tableData}" 
                                    paginator="false"
                                    scrollable="true"  rowIndexVar="rowIndex"  scrollHeight="500" 
                                    scrollRows="50" liveScroll="true"
                                    filterDelay="1100"
                                    selectionMode="single" selection="#{liveRangeService.rowSelected}"
                                    rowKey="#{liveRangeService.sr}"
                    >
                    <p:ajax event="rowSelect" listener="#{liveRangeService.onRowSelect}"  />
                    <f:facet name="header">
                        <p:outputPanel layout="inline" styleClass="tabSpacer">
                            <h:outputText value="Global Filter:" />
                            <p:inputText id="globalFilter" onkeyup="PF('dtlTBL').filter()" style="width:150px;margin-left:10px;"/>
                        </p:outputPanel>
                    </f:facet>

                    <p:column width="10">
                        <f:facet name="header">
                            <h:outputText value="Sr." />
                        </f:facet>
                        <h:outputText value="#{rowIndex+1}" />
                    </p:column>

                    <p:columns value="#{liveRangeService.tableHeaderNames}"
                               var="mycolHeader" 
                               width="#{colIndex==0?'10%':colIndex==1?'70%':colIndex==2?'10%':colIndex==3?'10%':'0'}" 
                               columnIndexVar="colIndex" 
                               sortBy="#{result[mycolHeader]}"
                               filterBy="#{result[mycolHeader]}"
                               filterMatchMode="contains"                        
                               >
                        <f:facet name="header">
                            <h:outputText value="#{mycolHeader}" />
                        </f:facet>
                        <h:outputText value="#{result[mycolHeader]}" />
                        <br />
                    </p:columns>

                </p:dataTable>
            </p:dialog>
        </h:form>
    </h:body>
</html>

我对设置行键的理解很混乱，也无法在 table 中设置 Sr. 固定列，代码总是 returns 固定列中的 0。请提出一些解决方案。

Answer 1

虽然我仍然无法通过第 selection 行完成此操作，但我通过将 Sr No 作为按钮并通过按钮调用第 select 行来解决了这个问题，我有上面上传了完整的代码。

<p:column width="50">
                        <f:facet name="header">
                            <h:outputText value="Sr." />
                        </f:facet>
                        <p:commandButton style="width: 49px" action="#{liveRangeService.onRowSelect(rowindex)}"/>
                    </p:column>

此外，由于过滤和排序影响了序列号，因此给出了错误的行号，我在填充tableData后设置了过滤数据；

filteredData=tableData;

如果有人能建议正确的方法来完成所有操作，我会很高兴 selection 而不是命令按钮。

动态创建的 RowSelection p:datatable return 总是第 0 行

RowSelection in dynamically created p:datatable return 0th row always

jsf

primefaces