title: Visualforce page not performing action
body: <p>I'm very new to visualforce/salesforce, I'm a horrible beginner with this so please pardon my probably easy problem.</p>
  
  <p>I'm creating a page to keep track of conference budgets. Basically the user enters how much was set as a budget in one field, in the next the put the actual cost, and then in the third field SF/VF should calculate the 2 numbers and display the difference. I set up the fields(correctly I believe as this was easy) and set up a page. Right now when you enter information into the fields and click save nothing happens.</p>
  
  <p>This is all above my head and I'm trying to find the answers in literature but not having a lot of luck.</p>
  
  <p>Here is the code:</p>
  
  <pre><code>    &lt;apex:page standardController="Conference__c" sidebar="true"&gt; 
      &lt;apex:sectionHeader title="Conference Budget" subtitle="{!Conference__c.name}"/&gt; 
          &lt;apex:form &gt; 
            &lt;apex:pageBlock title="Conference Budget" id="thePageBlock" mode="edit"&gt; 
              &lt;apex:pageBlockButtons &gt; 
                      &lt;apex:commandButton value="Save" action="{!save}"/&gt; 
                      &lt;apex:commandButton value="Cancel" action="{!cancel}"/&gt;                 
              &lt;/apex:pageBlockButtons&gt; 
               &lt;apex:actionRegion &gt;
   &lt;apex:pageBlocksection title="Conference Budget"&gt; 
              &lt;apex:panelGrid columns="4" width="400px" cellspacing="5px"&gt;                
  
                  &lt;apex:outputText value="Item" id="Item"/&gt;
                  &lt;apex:outputText value="Budgeted" id="Budgeted"/&gt;
                  &lt;apex:outputText value="Actual" id="Actual"/&gt;
                  &lt;apex:outputText value="Difference" id="Difference"/&gt;
  
                  &lt;apex:outputText value="Advertising" id="advertising"/&gt;
                  &lt;apex:inputField value="{!Conference__c.Advertising_b__c}"/&gt;
                  &lt;apex:inputField value="{!Conference__c.Advertising_a__c}"/&gt;
                  &lt;apex:inputField value="{!Conference__c.Advertising_d__c}"/&gt; 
  &lt;apex:outputText value="Totals" id="totals"/&gt;
                  &lt;apex:inputField value="{!Conference__c.Total_Cost_b__c}"/&gt;
                  &lt;apex:inputField value="{!Conference__c.Total_Cost_a__c}"/&gt;
                  &lt;apex:inputField value="{!Conference__c.Total_Cost_d__c}"/&gt;
  
  
                  &lt;apex:actionStatus startText="applying value..." id="status"/&gt;
  
                  &lt;/apex:panelGrid&gt;
                &lt;/apex:pageBlocksection&gt; 
                                &lt;/apex:actionRegion&gt;
  
  
  
        &lt;/apex:pageBlock&gt; 
   &lt;/apex:form&gt; 
   &lt;/apex:page&gt;
  </code></pre>