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MattL Problem getting a parameter in Visualforce, always null
I'm trying to pull in the ID of a row... unfortunately, despite setting an <apex:param> for it, when I query the variable I assigned it to I always get "null" back.
Visualforce:
Controller:
Visualforce:
Code:
<apex:page controller="cntrl_ext_save" sidebar="false" >
<apex:sectionHeader title="Professional Development Products" />
<apex:form >
<apex:selectList size="1" required="true" value="{!selectedProd}">
<apex:selectoptions value="{!items}"/>
</apex:selectList>
<apex:commandButton action="{!add}" value="New Dev. Product" />
<apex:pageBlock title="Items">
<apex:pageBlockButtons >
<apex:commandButton value="Save" action="{!save}" rerender="rows" status="outStatus"/>
<apex:commandButton value="Reset" action="{!reset}" rerender="rows" status="outStatus"
immediate="true" />
<apex:actionStatus startText="(.................Processing.................)" stopText="" id="outStatus" onstop="Reset"/>
</apex:pageBlockButtons>
<apex:pageBlockTable border="1" cellpadding="6" value="{!components}" var="a" id="rows" >
<apex:column headerValue="Delete"><apex:commandButton value='Del' action='{!remove}' onclick="return confirm('Are you sure—');"><apex:param value="{a.Id}" assignTo="{!dParam}" /></apex:commandButton></apex:column>
<apex:column headerValue="Product">"{!a.PricebookEntry.Name}"</apex:column>
<apex:column headerValue="Quantity"><apex:inputField value="{!a.Quantity}" /></apex:column>
<apex:column headerValue="Sales Price"><apex:inputField value="{!a.UnitPrice}" /></apex:column>
<apex:column headerValue="List Price">"{!a.ListPrice}"</apex:column>
<apex:column headerValue="Total Price">"{!a.TotalPrice}"</apex:column>
</apex:pageBlockTable>
</apex:pageblock>
</apex:form>
</apex:page>Controller:
Code:
public class cntrl_ext_save {
public String selectedProd {get;set;}
public String dParam;
public String getdParam() {
return dParam;
}
public void setdParam(String s) {
dParam = s;
}
public List<OpportunityLineItem> componentList; // list of components to appear in the multi-line.
public PageReference reset() {
componentList = [select id, quantity, totalprice, unitprice, listprice, PricebookEntry.name, pricebookentry.product2.Family from OpportunityLineItem where OpportunityId = :ApexPages.currentPage().getParameters().get('id') and pricebookentry.product2.Family = '03 Professional Services'];
return null;
}
public List<OpportunityLineItem> getComponents() {
if(componentList == null) reset();
return componentList;
}
public void setComponents(List<OpportunityLineItem> Components) {
componentList = Components;
}
public PageReference save() {
upsert componentList;
return null;
}
public PageReference add() {
Opportunity pb = [select Pricebook2Id from Opportunity where Id = :ApexPages.currentPage().getParameters().get('id')];
PricebookEntry prod = [select UnitPrice, Name, Id from PricebookEntry where Product2Id = :selectedProd and Pricebook2Id = :pb.Pricebook2Id];
componentList.add(New OpportunityLineItem(OpportunityId = ApexPages.currentPage().getParameters().get('id'), UnitPrice=prod.UnitPrice, PricebookEntryId=prod.Id, Quantity=1));
save();
reset();
return null;
}
public PageReference remove() {
system.debug('test '+dParam);
OpportunityLineItem oli = Database.query('select Id from OpportunityLineItem where id='+dParam);
delete oli;
reset();
return null;
}
public List<SelectOption> getItems() {
List<SelectOption> op = new List<SelectOption>();
for(Product2 prod : [select id, name from Product2 where family='03 Professional Services']) op.add(new SelectOption(prod.Id, prod.Name));
return op;
}
}
http://community.salesforce.com/sforce/board/message?board.id=Visualforce&thread.id=5745
I changed it to a commandLink and my code worked just fine.