IDataSource.Delete()

Description:

The Delete method deletes an event (entry) from +the event log database.

This method can be called both synchronously and asynchronously.

Syntax:

For synchronous calls:

result = so.IDataSource.Delete(criteria);

+ +

For asynchronous calls:

result = so.IDataSource.Delete(criteria, callback);

+ +

Arguments:

criteria:
+ +
This is an object that specifies which event to delete from the log +event database. For more information about the object properties and how to +define them, see section Criteria for deleting an event.
+ +
callback:
+ +
The callback argument is the name of the method +that is executed when an asynchronous Delete call has +results or status information to return. You must define this method separately. +Follow the instructions in section Defining the callback handler for an asynchronous method to +define the callback method.
+
This argument is used only with an asynchronous Delete call.
+ +

Return value:

If synchronous, the Delete method returns an error +code and an error message.

+ + + + + + + + + + + + + + + +

**Table:** Return value +properties for a synchronous Delete
+ Property +	+ Description +	+ Value +
+ `result.ErrorCode` +	+ This is a number that specifies a predefined error code. +	+ See Service API error codes. +
+ `result.ErrorMessage` +	+ This is a text string that describes the error. +	+ See Logging Service API error messages. +

If asynchronous, the method returns an object that contains a transaction +ID for the callback instance, +an error code, and an error message (see the following table). When the asynchronous +call has completed, callback returns an object that contains +an error code and an error message (see Table: +Callback return value).

+ + + + + + + + + + + + + + + + + + + + + +

**Table:** Return value +properties for an asynchronous Delete
+ Property +	+ Description +	+ Value +
+ `result.TransactionID` +	+ This is a number used as an identification to match transactions started +with the asynchronous `Delete` call to one or more calls +it generates to `callback`. + This property is only valid for asynchronous calls. +
+ `result.ErrorCode` +	+ This is a number that specifies a predefined error code. +	+ See Service API error codes. +
+ `result.ErrorMessage` +	+ This is a text string that describes the error. +	+ See Logging Service API error messages. +

Example code:

For the complete source of a sample widget +that demonstrates how to use this Service API, see the +full example.

+ + + + +