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The cfselect tag
The
tag is an improved version of the HTML
cfselect
tags, the
tag provides the
cfselect
entered. Using the
cfselect
field data entry as follows:
<!--- Field: eventType --->
<tr>
<td valign="top">Type of Event
</td>
<td>
<cfselect size="1" name="eventType" required="Yes"
message="Type of event must be selected.">
<cfoutput query="GetEvents">
<option value="#GetEvents.eventTypeID#">
#GetEvents.eventType#
</option>
</cfoutput>
</cfselect>
</td>
</tr>
Exercise: use eventtypes table to load event types
Do the following steps to modify the Trip Edit page to display a list of event types from the
eventtypes table and add validation.
To display a list of event types from the eventtypes table and add validation:
View the tripedit.cfm page in a browser. Select the event types drop-down list. Notice that only
1
three event types appear in the list.
Open the tripedit.cfm in the my_app directory in your editor.
2
Add the following code above the <html> tag:
3
<cfquery name="GetEvents" datasource="CompassTravel">
SELECT eventType, eventTypeID
FROM eventtypes
</cfquery>
Replace the following eventtypes code lines:
4
<cfselect size="1" name="eventType" required="Yes"
message="Type of event must be selected.">
<option value="1" selected>Surfing</option>
<option value="2">Mountain Climbing</option>
<option value="3">Mountain Biking</option>
</cfselect>
with these lines:
<cfselect size="1" name="eventType" required="Yes"
message="Type of event must be selected.">
<cfoutput query="GetEvents">
<option value="#GetEvents.eventTypeID#">
#GetEvents.eventType#
</option>
</cfoutput>
</cfselect>
and
required
message
tag and the preceding
Developing code to validate data and enforce business rules
tag. Like other ColdFusion form
select
attributes that validate the data
, you can implement the
cfquery
eventType
103
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