JavaScript:useService和callService

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useService 文法:
sElementID .useService( sWebServiceURL , sFriendlyName [ , oUseOptions ] )
useService 參數:

sElementID Required. The of the element to which the behavior is attached.
sWebServiceURL Required. String specifying the URL of the Web Service, using one of the following path types. See the examples section, where several variations of this parameter are shown.

Web Service file name A Web service file, which has an .asmx file extension. This short form of the URL is sufficient, provided that the Web service is located in the same folder as the Web page using the WebService behavior. In this case, the ?WSDL query string is assumed by the behavior.
WSDL file name A Web Services Description Language (WSDL) file name. The WSDL file must have a .wsdl file extension.
Full file path Full path to a WebService (.asmx) or WSDL (.wsdl) file. A file path to a Web Service must include the ?WSDL query string. Either a local file path or a URL can be specified.
Relative path A relative path to a WebService (.asmx) or WSDL (.wsdl) file. A file path to a Web Service must include the ?WSDL query string.
sFriendlyName Required. String representing a friendly name for the Web Service URL.
oUseOptions Optional. An instance of the object.

callService文法:
iCallID = sElementID.sFriendlyName.callService( [oCallHandler], fo, oParam)
callService參數:

sElementID Required. The of the element to which the behavior is attached.
sFriendlyName Required. The friendly name for the Web Service, which is defined by calling the method.
oCallHandler Optional. Name of a script callback function that handles the results returned from this instance of the method call.
fo Required. One of the following possible values.

strFuncName A String representing the name of the remote function being called. The String must be bounded by single or double quotation marks.
objCall A object, which has the necessary properties defined to call a remote function.
oParam Required. One or more comma-delimited parameters, which are passed to the method name specified by fo.
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