MACROMEDIA FLEX BUILDER-USING FLEX BUILDER Uživatelský manuál stáhnout pdf (Strana 25)

14. Define the following set function. The function passes the F3DesktopApplication object to the AccountsView

component using app="{app}" attribute, and assigns the F3DesktopApplication object to the _app variable you

declared earlier in the ActionScript code.

public function set app( app : F3DesktopApplication ) : void {

_app = app;

_desktopWrapper = app.wrapper;

}

15. Create the event handlers for the Create, Query, and Sync buttons. Use the following functions:

•

onCreateClick—Renders the UI where the user creates the new account.

•

onSyncClick—Synchronizes the local database with the Salesforce database and updates the status.

•

onQueryClick—Sends a query to the local database to retrieve all the Account records, and calls onQueryResult, a

function we will write that displays the new list of records.

The code looks like this:

protected function onCreateClick() : void {

_app.setStatus( null );

// switch to create mode and simply render a new account

currentState = "create";

_createFieldContainer.fieldCollection.render( new Account());

}

protected function onSyncClick() : void {

_app.setStatus( null );

_desktopWrapper.syncWithServer(

null,

new mx.rpc.Responder(

function( result : F3Message ) : void {

_app.setStatus( result );

function( result : F3Message ) : void {

LOG.error( "syncWithServer failed: " + result.toString());

}

)

);

}

protected function onQueryClick() : void {

_app.setStatus( null );

_desktopWrapper.query(

"select * from Account",

new mx.rpc.Responder(

onQueryResult,

function( result : F3Message ) : void {

LOG.error( "query failed: " + result.toString());

}

)

);

}

Step 8: Create the Account Manager User Interface and

Application Logic

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