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<h1>ADO WillChangeField and FieldChangeComplete Events</h1>
<hr />
<a href="ado_ref_recordset.asp"><img class="navup" src="../images/up.gif" alt="Recordset Object Reference" border="0" /> Complete Recordset Object Reference</a>
<hr />
<h3>The WillChangeField Event
</h3>
<p>The WillChangeField event is triggered before the values of one or more Field
Objects are changing.
</p>
<p><b>Note:</b> Before this event returns, set the status parameter to adStatusCancel to
cancel the operation that caused this event.
</p>
<h3>The FieldChangeComplete Event
</h3>
<p>The FieldChangeComplete event is triggered after the values of one or more
Field Objects have been changed.
</p>
<p><b>Note:</b> Before this event returns, set the status parameter to adStatusUnwantedEvent to prevent subsequent notifications.
</p>
<p><b>Note:</b> The WillChangeField event and the FieldChangeComplete event may occur when
you set the Value property and calls the Update method with field and value array parameters.
</p>
<h3>Syntax
</h3>
<table class="ex" cellspacing="0" border="1" width="100%" cellpadding="3">
<tr>
<td valign="top">
<pre>WillChangeField numfields,fields,status,objRs</pre>
<pre>FieldChangeComplete numfields,fields,objErr,status,objRs </pre>
</td>
</tr>
</table>
<br />
<table class="ex" cellspacing="0" border="1" width="100%" cellpadding="3">
<tr>
<th align="left" valign="top" width="20%">Parameter</th>
<th align="left" valign="top" width="80%">Description</th>
</tr>
<tr>
<td valign="top">numfields </td>
<td valign="top"> The number of Field objects in fields
</td>
</tr>
<tr>
<td valign="top">fields </td>
<td valign="top"> An array that contains Field objects with changes
</td>
</tr>
<tr>
<td valign="top">status </td>
<td valign="top"> An <a href="#EventStatusEnum"> EventStatusEnum</a>
value that indicates the status of the execution of the event
</td>
</tr>
<tr>
<td valign="top">objErr </td>
<td valign="top"> The name of an Error object that describes the error if
status is
set to adStatusErrorsOccurred, otherwise it is not set
</td>
</tr>
<tr>
<td valign="top">objRs </td>
<td valign="top"> The name of the Recordset Object that triggered this
event
</td>
</tr>
</table>
<br />
<hr />
<a name="EventStatusEnum"><h3>EventStatusEnum Values</h3></a>
<table class="ex" cellspacing="0" border="1" width="100%" cellpadding="3">
<tr>
<th valign="top" align="left">Constant</th>
<th valign="top" align="left">Value</th>
<th valign="top" align="left">Description</th>
</tr>
<tr>
<td valign="top">adStatusOK</td>
<td valign="top">1</td>
<td valign="top">The operation that caused the event was successful</td>
</tr>
<tr>
<td valign="top">adStatusErrorsOccurred</td>
<td valign="top">2</td>
<td valign="top">The operation that caused the event failed</td>
</tr>
<tr>
<td valign="top">adStatusCantDeny</td>
<td valign="top">3</td>
<td valign="top">The operation that caused the event cannot be
cancelled</td>
</tr>
<tr>
<td valign="top">adStatusCancel</td>
<td valign="top">4</td>
<td valign="top">The operation that caused the event is cancelled</td>
</tr>
<tr>
<td valign="top">adStatusUnwantedEvent</td>
<td valign="top">5</td>
<td valign="top">Prevents subsequent notifications before the event method has finished
executing</td>
</tr>
</table>
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