User Guide

60 Chapter 3: Using the RemotingConnector component (Flash Professional only)
// handles the display of the fault information related to the category data
// request to the user
function onCategoryDataFault( status:Object ):Void {
// notify the user of the problem
if( status.code == "fault" ) {
Alert.show( "Couldn't retrieve category data.", "Error",
Alert.OK, this );
mx.remoting.debug.NetDebug.trace({level:"None",
message:"There was a problem: " + status.data.faultstring });
}
}
private var customerData_con:RemotingConnector;
private var categoryData_con:RemotingConnector;
private var customers_grd:DataGrid;
private var custCat_cmbo:ComboBox;
private var custInfo_txt:TextArea;
private var totalRec_txt:TextInput;
private var totalSales_label:Label;
private var custLogo_ldr:Loader;
private var initialized:Boolean;
}
CustomerInfoFormCon()
The
CustomerInfoFormCon() function is the constructor for the class. It calls the super()
method to initialize the Form super class. It also sets the variable
initialized to the value false
for the initial call to the
onReveal() method, which performs initialization tasks for this class.
The
addEventListener() function registers the onReveal() method as the event handler for a
reveal event.
onReveal()
The
onReveal() function performs initialization tasks for the CustomerInfoFormCon class.
These tasks include defining the columns (
"ID", "Active", "Name", and "TotalSales") for the
DataGrid component that displays the customer information returned from the database. The
next line, shown here, registers the
onCustGrid_Change() function as the event handler to be
called if a change occurs in the
customers_grd DataGrid component.
customers_grd.addEventListener( "change", onCustGrid_Change );
Next, the onReveal() function calls the NetDebug.initialize() method to initialize Flash
Remoting debug support. Then it aligns text for the Total and the Total Sales labels and registers
the following functions as event handlers:
• onCategoryDataFault() to handle a status outcome for an access on Category data
• onCategoryData() to handle the result of an access on Category data
• onCustomerData() to handle the result of an access on Customer data
• onCustomerDataFault() to handle a status outcome for an access on Customer data.