動態添加行並保持刷新值

Question

我有一個VF頁面，當點擊「添加參與者」按鈕時，我可以動態地將行添加到pageBlockTable。我有頁面可以添加行的地方工作，但是當我添加新行時，我正在丟失行中的值。值被清除。

任何人都可以幫助我如何保持我的價值觀，當我添加新行？我正在使用包裝類。

這裏是我的網頁：

<apex:page standardController="Call_Report__c" extensions="CallReportControllerExtension" showHeader="true" sidebar="true"> 
<apex:sectionHeader title="Call Report Edit" subtitle="{!IF(isEditMode, 'New Call Report', CallReportName)}" /> 

<apex:includeScript value="{!URLFOR($Resource.JQueryUI, '/js/jquery-1.8.2.min.js')}" /> 
<apex:includeScript value="{!URLFOR($Resource.JQueryUI, '/js/jquery-ui-1.9.0.custom.js')}" /> 

<script type="text/javascript"> 
    var j$ = jQuery.noConflict(); 

    j$(document).ready(function(){ 
     j$('.errorMsg').hide(); 
    }); 
</script> 
<script> 
var newWin=null; 
function openLookupPopup(name, id) 
{ 
    var url="/apex/ParticipantSearchPopup?namefield=" + name + "&idfield=" + id; 
    newWin=window.open(url, 'Popup','height=350,width=400,left=100,top=100,resizable=no,scrollbars=yes,toolbar=no,status=no'); 
    if (window.focus) 
    { 
     newWin.focus(); 
    } 
    return false; 
} 

function closeLookupPopup() 
{ 
    if (null!=newWin) 
    { 
     newWin.close(); 
    } 
} 
</script>  
<apex:form > 
    <apex:pageMessages id="Errors" /> 
    <apex:pageBlock title="Call Report Edit" mode="edit"> 
     <apex:pageBlockButtons location="both"> 
      <apex:commandButton action="{!save}" value="Save" id="theSaveButton" /> 
      <apex:commandButton action="{!cancel}" value="Cancel" id="theCancelButton" /> 
     </apex:pageBlockButtons> 
     <apex:pageBlockSection title="Information" columns="2"> 
      <apex:inputField value="{!Call_Report__c.Name}" required="true" /> 
      <apex:pageBlockSectionItem rendered="{!!isEditMode}" > 
       <apex:outputLabel value="Owner" /> 
       <apex:outputField value="{!Call_Report__c.Owner.Name}" /> 
      </apex:pageBlockSectionItem> 
      <apex:pageBlockSectionItem rendered="{!isEditMode}" > 
       <apex:outputLabel value="Owner" /> 
       <apex:outputLabel value="{!$User.FirstName} {!$User.LastName}" /> 
      </apex:pageBlockSectionItem> 
      <apex:inputField value="{!Call_Report__c.Location__c}" /> 
      <apex:inputField value="{!Call_Report__c.EventAmount__c}" /> 
     </apex:pageBlockSection> 

     <apex:pageBlockSection title="Detail" columns="1"> 
      <apex:inputTextArea value="{!Call_Report__c.Purpose__c}" cols="75" /> 
      <apex:inputTextArea value="{!Call_Report__c.Results__c}" cols="75" /> 
      <apex:inputTextArea value="{!Call_Report__c.Next_Steps__c}" cols="75" /> 
      <apex:inputField value="{!Call_Report__c.Description__c}" /> 
     </apex:pageBlockSection> 
    </apex:pageBlock> 

    <apex:pageBlock >   
     <apex:pageBlockButtons location="top" id="topButton"> 
      <apex:commandButton id="newButton" value="Add Participant" action="{!addParticipant}" rerender="pageTable" immediate="true" /> 
     </apex:pageBlockButtons> 
     <apex:pageBlockSection title="Participants" columns="1"> 
      <apex:pageBlockTable id="pageTable" value="{!participantLinesForPage}" var="part"> 
       <apex:column headerValue="Account" width="25%"> 
        <apex:inputHidden value="{!part.participantLine.Account__r.Id}" id="targetAccountId" /> 
        <apex:inputText value="{!part.participantLine.Account__r.Name}" id="targetAccountName" onFocus="this.blur()" disabled="false" style="width:175px;" /> 
        <a href="#" onclick="openLookupPopup('{!$Component.targetAccountName}', '{!$Component.targetAccountId}'); return false" ><img onmouseover="this.className = 'lookupIconOn';this.className = 'lookupIconOn';" onmouseout="this.className = 'lookupIcon';this.className = 'lookupIcon';" onfocus="this.className = 'lookupIconOn';" onblur="this.className = 'lookupIcon';" class="lookupIcon" src="/s.gif" /></a>      
       </apex:column> 
       <apex:column headerValue="Contact" width="25%"> 
        <apex:inputHidden value="{!part.participantLine.Contact__r.Id}" id="targetContactId" /> 
        <apex:inputText value="{!part.participantLine.Contact__r.Name}" id="targetContactName" onFocus="this.blur()" disabled="false" style="width:175px;" /> 
        <a href="#" onclick="openLookupPopup('{!$Component.targetContactName}', '{!$Component.targetContactId}'); return false" ><img onmouseover="this.className = 'lookupIconOn';this.className = 'lookupIconOn';" onmouseout="this.className = 'lookupIcon';this.className = 'lookupIcon';" onfocus="this.className = 'lookupIconOn';" onblur="this.className = 'lookupIcon';" class="lookupIcon" src="/s.gif" /></a> 
       </apex:column> 
       <apex:column headerValue="User" width="25%"> 
        <apex:inputHidden value="{!part.participantLine.User__r.Id}" id="targetUserId" /> 
        <apex:inputText value="{!part.participantLine.User__r.Name}" id="targetUserName" onFocus="this.blur()" disabled="false" style="width:175px;" /> 
        <a href="#" onclick="openLookupPopup('{!$Component.targetUserName}', '{!$Component.targetUserId}'); return false" ><img onmouseover="this.className = 'lookupIconOn';this.className = 'lookupIconOn';" onmouseout="this.className = 'lookupIcon';this.className = 'lookupIcon';" onfocus="this.className = 'lookupIconOn';" onblur="this.className = 'lookupIcon';" class="lookupIcon" src="/s.gif" /></a> 
       </apex:column> 
       <apex:column headerValue="Spent Amount" width="25%"> 
        <apex:inputField value="{!part.participantLine.Spent_Amount__c}" /> 
       </apex:column> 
      </apex:pageBlockTable> 
     </apex:pageBlockSection> 
    </apex:pageBlock>     
</apex:form> 
</apex:page> 

這裏是我的控制器：

public with sharing class CallReportControllerExtension { 

private final Call_Report__c callReport; 

public Boolean isEditMode {get; set;} 
public List<Participants> participantLinesForPage {get; set;} 

public CallReportControllerExtension(ApexPages.StandardController stdController) { 
    this.callReport = (Call_Report__c)stdController.getRecord(); 
    isEditMode = isEditPage(ApexPages.currentPage().getParameters().get('save_new')); 
    refreshLineItems(); 
} 

public String getCallReportName() { 
    return [select Name from Call_Report__c where Id =: callReport.Id].Name; 
} 

public PageReference addParticipant() { 
    Participant__c newRecord = new Participant__c(); 
    //newRecord.Account__c  = '001f0000007qcD5'; 
    //newRecord.Contact__c  = '003f0000007H61z'; 
    //newRecord.User__c    = '005f0000000U5ME'; 
    //newRecord.Spent_Amount__c  = 100.00; 
    participantLinesForPage.add(new Participants(participantLinesForPage.size(), newRecord)); 
    return null; 
} 

private void refreshLineItems() { 
    List<Participant__c> lineItems = [select Account__c, Account__r.Id, Account__r.Name, Contact__c, Contact__r.Id, Contact__r.Name, User__c, User__r.Id, User__r.Name, Spent_Amount__c from Participant__c where Call_Report__c =: callReport.Id]; 

    participantLinesForPage = new List<Participants>(); 

    Integer iterate = 0; 
    for(Participant__c p : lineItems) { 
     participantLinesForPage.add(new Participants(iterate, p)); 
     iterate += 1; 
    } 
} 

private Boolean isEditPage(String param) { 
    Boolean retval = false; 
    if(param != null) { 
     retval = true; 
    } 
    return retval; 
} 

class Participants {  
    public Integer iterate {get; set;} 
    public Participant__c participantLine {get; set;} 

    public Participants(Integer iterate, Participant__c participantLine) { 
     this.iterate = iterate; 
     this.participantLine = participantLine; 
    } 
} 
} 

的數據將不會被保存保存按鈕被點擊，直到，我還沒有實現。我只是試圖讓新值在添加新行時保持其狀態。 refreshLineItems方法清除值，但是當記錄已經存在時我需要該方法。所以，我的問題是如何維護尚未保存到數據庫的行中的值？我試圖在我的包裝類中處理它，但沒有成功。

任何幫助，非常感謝！ 謝謝。

Answer 1

嗨，你失去價值bec bec立即=「真」標籤在尖頂：commandButton。 您可以使用inputField中的「required = false」來代替。