# Editing a Table of Data in a Page

In the last tutorial, you built a table of data. Using `<apex:inputField>` in the data table columns, you can create a table with editable fields. Using `<apex:commandButton>` you can save the data you change. Any message (such as `Saving`) is automatically displayed with the `<apex:pageMessages>` tag.

The following page creates a page that enables you to edit a series of Industry types at the same time:

```apex_page
<apex:page standardController="Account" recordSetVar="accounts" 
   tabstyle="account" sidebar="false">
   <apex:form> 
   <apex:pageBlock >
   <apex:pageMessages />
   <apex:pageBlockButtons>
      <apex:commandButton value="Save" action="{!save}"/>
   </apex:pageBlockButtons>

   <apex:pageBlockTable value="{!accounts}" var="a">
      <apex:column value="{!a.name}"/>
      
      <apex:column headerValue="Industry">
         <apex:inputField value="{!a.Industry}"/>
      </apex:column>

   </apex:pageBlockTable>
   </apex:pageBlock>
   </apex:form>
</apex:page>
```

:::note
If you have an ID attribute in the URL, this page does not display correctly. For example, `https://MyDomainName--PackageName.vf.force.com/apex/HelloWorld?id=001D000000IR35T` produces an error. You need to remove the ID from the URL.
:::

Notice the following about the page markup:

- This page takes advantage of [standard set controllers](/docs/platform/salesforce-pages-developers-guide/guide/pages-controller-sosc-about.md) to generate the data for the table. Use the `recordSetVar` attribute to specify the name of the set of data you want to use. Then, in the `<apex:pageBlockTable>` value, use the name of that set to populate the table with data.
- The `<apex:inputField>` tag automatically generates the correct display for the field. In this case, as a drop-down list.
- The page must be enclosed in an `<apex:form>` tag in order to use the `<apex:commandButton>` tag. A form specifies a portion of a Visualforce page that users can interact with.

![The Accounts tab, displaying the Acme, Global Media, and Salesforce accounts. An Industry column displays drop-down lists used to select the corresponding industry.](https://a.sfdcstatic.com/developer-website/sfdocs/platform/media/salesforce-pages-developers-guide/pages_quick_start_page_data_table_edit.png "Example of Editing a Table of Data")