[SalesForce] Visualforce Unknown Property Error

actually i have 2 objects with parent and child reletion ship….and those objects are "EntityRelation__c"(child object)…..and another is "Entity master__c"(parent object)….now i have a requirement like i have to populate "entity maser"fields on my vf page of entity reletion__c that also i need like in edit mode.. so for this i wrote the code like

<apex:page standardController="EntityRelation__c" extensions="entityex" sidebar="false"  showHeader="true" >

<apex:form id="theform">

<apex:pageBlock title="Entity Detail">
<apex:pageBlockButtons >
<apex:commandButton value="save"  action="{!save}"/>
<apex:commandButton value="save&new" action="{!save}"/>
<apex:commandButton value="cancel" action="{!cancel}"/>
</apex:pageBlockButtons>`
<apex:pageBlockSection title="Entry No" columns="2">
<apex:actionfunction name="nameChanged" action="nameChanged" rerender="theform"/>
<apex:inputField value="{!EntityRelation__c.Entity_Name__c}" required="true" id="entity_id" onchange="nameChanged()">
<apex:actionSupport event="onchange" reRender="salesRepDetails" />
</apex:inputField>
<apex:inputField value="{!EntityMaster__c.Company_Code__c}" required="true"/>
<apex:inputField value="{!EntityMaster__c.Ven_CusNo__c}" required="true"/>
<apex:inputField value="{!EntityMaster__c.GL_Account__c}" required="true"/>
</apex:pageBlockSection>
</apex:pageBlock>ge
</apex:form>

My controller code is the following:

public with sharing class entityex {
public EntityMaster__c emObject{get;set;}
public EntityRelation__c erObject{get;set;}

public entityex (ApexPages.StandardController controller)
{
   this.erObject = (EntityRelation__c)controller.getrecord();
}
public void nameChanged()
{
    this.emObject = [Select Id,Name,Ven_CusNo__c,GL_Account__c,Company_Code__c from    EntityMaster__c Where id = :erObject.Entity_Name__c];

}
}

but am getting error like

" Unknown property 'EntityRelation__cStandardController.EntityMaster__c'"

What does that error mean?

I want to auto populate the four fields on the entity master (parent object) when I select "{!EntityRelation__c.Entity_Name__c}". This is the lookup field to the parent object.

THE ABOVE FOUR FILEDS ALSO THERE ON THE "ENTITY MASTER"(PARENT OBJECT)…..NOW I WANT TO AUTO POPULATE THOSE FIELD WHEN I ONLY SELECT "{!EntityRelation__c.Entity_Name__c}" …ITS LOOK UP FIELD TO PARENT OBJECT

Best Answer

Is it just a typo, or does your code actually have

Entity_Master_c
EntityRelation_c

If thats what it really is in the code, you are missing another underscore

Entity_Master__c
EntityRelation__c

This typo would cause you to get the unknown property error as well

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[SalesForce] Return Boolean From Action Function called from JS

You could wrap a script in an outputPanel and rerender it on every save. Then you'd have the most up-to-date value of the variable. eg:

<apex:outputPanel id="saveResultScript">
    <script>
    function confirmProceed (){
        var dataSaved = "{!JSENCODE(dataSaved)}";
        if(dataSaved == 'false' && !isDirty) {
            if(confirm('Are you sure you wish to continue - any unsaved changes will be lost.')) {
            }
        }else {
            return false;
        }
    }
    </script>
    </apex:outputText>
</apex:outputPanel>

Outside this block we have another script tag which we'll put the isDirty variable (so it doesn't get rerendered on save)

<script>
var isDirty = false;
</script>

As long as this entire panel is rerendered on every save, we can check the newly updated dataSaved variable and the locally updated isDirty variable (you said you had a variable that performs this function on any onenter event)

This way, we don't need to talk to the controller for confirmProceed to work. Hopefully this helps a little. I feel a little unsure of your requirements, but this is something that I have done several times myself and it works pretty well.

Oh and using a RemoteAction as suggested in the comments would probably work too, as long as you keep in mind that RemoteAction methods need to be static. They definitely return a value immediately for you to act on.

Update One last thought - you could use a RemoteAction to save your data and then (depending on the result) call an actionFunction to update the dataSaved var on the controller non-statically - while you can do what you want without waiting for a rerender - this should be very performant.

[SalesForce] Error: Unknown property using Visualforce component

Assuming the component and its GenericHistoryComponentController will work with any type of object, you just need to supply an SObject reference. For a standard controller. That reference is given the same name as the type that is specified by the standardController attribute.

So for this to work with your existing page it's:

<apex:page standardController="Visitor__c">
     ...
     <c:GenericHistoryComponent my_Object="{!Visitor__c}" record_Limit="50">
     </c:GenericHistoryComponent>
</apex:page>

On the subject of displaying the history of a different object, if there is a field reference to one instance (i.e. a parent) you could do this:

<apex:page standardController="Visitor__c">
     ...
     <c:GenericHistoryComponent my_Object="{!Visitor__c.Employee__r}" record_Limit="50">
     </c:GenericHistoryComponent>
</apex:page>

but if not you will have to write a controller extension that provides a property to the single instance.

Best Answer

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