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Adobe Flash Catalyst CS5 : Connecting Your Project to Live Data - Changing the Project Type (part 2) - Configuring the return data

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6/11/2012 6:01:56 PM

2. Configuring the return data

You need to configure the type of data that the service will return so that Flex can properly process it. Once you have completed the steps in the previous section, the Data/Services view will display the getAllMagazines operation.

  1. Select the getAllMagazines operation.

  2. Right-click  the getAllMagazines operation and choose Configure Return Type from the context menu. You can also click the Configure Return Type button at the top of the Data/Services view. (see Figure 10).

    Figure 10. Selecting the service and clicking the Configure Return Type button in the Data/Services view
  3. In the Configure Return Type dialog box, ensure that the option Auto-detect return type from sample data is selected (see Figure 11).

  4. Click Next. Flash Builder needs to call, or invoke, the service to determine what kind of data will be returned. Some services will require that a parameter be sent to them; for example, a search operation would need a search string. The service used in these examples, however, simply returns all data, so you do not need to provide a parameter.

    Flash Builder will therefore invoke the service and return a list of the data being returned.

    In this example, the service returns a list of magazines and information about them. ActionScript can store multiple values in a single variable, as is needed in this case, in an array. Flash Builder will display a dialog box stating that it cannot automatically determine the property type.

  5. Enter a name for the array, such as MagazinesData (see Figure 12).

  6. Click Finish.

Figure 11. The first step in configuring the return type

Figure 12. Entering the name of the property type for the data.

The name of the service and the name of the data type cannot be the same. In this example, the service name is Magazines, so the data type cannot be Magazines.

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