User Guide

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Table Of Contents

52 Chapter 2: Using Flash Remoting ActionScript

The onReveal() function calls the addEventListener() function to establish this function as

the event handler for the

customers_grd DataGrid component.

onCustCat_Change()

The

onCustCat_Change() function is the event handler that is called when the selection in the

Category ComboBox component changes. It calls the

refreshCustomerData() function to

retrieve the customers for the selected category.

The

onCategoryData() function calls the addEventListener() function to register this

function as the event handler for the

cust_Cat_cmbo ComboBox component.

onCategoryData()

The

onCategoryData() function handles the result of a call to the custService.

getCategories()

function. The CustomerInfoFormAPI() function named this function as the

result handler for the

getCategories() function.

This function first calls the

NetDebug.trace() function to document the call to this function.

Then it calls the

DataGlue.bindFormatStrings() function to make the Name field the label that

appears in the ComboBox component and make the ID field the data field for the record. The

call to

addEventListener() makes the onCustCat_Change() function the event handler when a

change occurs to the selection in the

custCat_cmbo ComboBox component. This function calls

the

refreshCustomerData() function to display the customers in the current category.

onCustomerData()

The

onCustomerData() function handles the results of the call to the custService.

getCustomers()

function in the refreshCustomer() function. This function assigns the result

of the call to the

getCustomers() function to the rs record set. It sets the delivery mode to

onDemand, which means that the server will deliver records for this record set in groups of up to

25 records for each call to the

getCustomers() function. Next, this function loads the length of

the returned record set into

totalRec_txt.text variable for display in the Total field of the user

interface. Then it sets

customers_grd.dataProvider to rs to specify that rs provides the data

for the grid. Finally, it calls the

updateDetails() function to update the Customer Details

section for the selected customer.

onCustomerFault()

The

onCustomerDataFault() function handles the fault outcome of a request for customer data.

It calls

Alert() to notify the user of the problem and then calls the NetDebug.trace() function

to display a message and report the status as specified by the

faultstring property of the Fault

object that is passed to the function in a FaultEvent object.

onCategoryFault()

The

onCategoryDataFault() function handles the fault outcome of a request for Category data.

It calls

Alert() to notify the user of the problem and then calls the NetDebug.trace() function

to display a message and report the status as specified by the

faultstring property of the Fault

object that is passed to the function in a FaultEvent object.