Operation Manual

600
USING DREAMWEAVER
Building applications visually
Last updated 3/28/2012
Build the delete page
After completing the page listing the records, switch to the delete page. The delete page shows the record and asks the
user if they're sure they want to delete it. When the user confirms the operation by clicking the form button, the web
application deletes the record from the database.
Building this page consists of creating an HTML form, retrieving the record to display in the form, displaying the
record in the form, and adding the logic to delete the record from the database. Retrieving and displaying the record
consists of defining a recordset to hold a single record—the record the user wants to delete—and binding the recordset
columns to the form.
Note: The delete page can contain only one record-editing server behavior at a time. For example, you cannot add an
Insert Record or an Update Record server behavior to the delete page.
Create an HTML form to display the record
1 Create a page and save it as the delete page you specified in the previous section.
You specified a delete page when you created the Delete link in the previous section. Use this name when saving the
file for the first time (for example, deleteConfirm.cfm).
2 Insert an HTML form on the page (Insert > Form > Form).
3 Add a hidden form field to the form.
The hidden form field is required to store the record ID passed by the URL parameter. To add a hidden field, place the
insertion point in the form and select Insert
> Form > Hidden Field.
4 Add a button to the form.
The user will click the button to confirm and delete the displayed record. To add a button, place the insertion point in
the form and select Insert
> Form > Button.
5 Enhance the design of the page any way you want and save it.
Retrieve the record the user wants to delete
1 In the Bindings panel (Window > Bindings), click the Plus (+) button and select Recordset (Query) from the
pop-up menu.
The simple Recordset or DataSet dialog box appears. If the advanced Recordset dialog box appears instead, click
Simple.
2 Name the recordset, and select a data source and the database table that contains the records that users can delete.
3 In the Columns area, select the table columns (record fields) you want to display on the page.
To display only some of the record’s fields, click Selected and choose the desired fields by Control-clicking (Windows)
or Command-clicking (Macintosh) them in the list.
Make sure to include the record ID field even if you won't be displaying it.
4 Complete the Filter section as follows to find and display the record specified in the URL parameter passed by the
results page:
From the first pop-up menu in the Filter area, select the column in the recordset containing values that match the
value of the URL parameter passed by the page with the Delete links. For example, if the URL parameter contains
a record ID number, select the column containing record ID numbers. In the example discussed in the previous
section, the recordset column called CODE contains the values that match the value of the URL parameter passed
by the page with the Delete links.
From the pop-up menu beside the first menu, select the equal sign, if not already selected.