Validation in Form Data add Event

Dear All,
I am developing an add-on m facing some problems in the Form_Data_ADD Event. I have created a form using screen painter and i have done some validations for few fields those fields are mandatory. after entering some data iam closing the form it will show a messageBox saying do you want to save the changes or not n if i give yes its saving data. but it has to show the error message saying certain fields are mandatory.please suggest some solution regarding how to validation in such a condition.
Regards,
Anand.

Hi Anand,
I do my validations either in the Form Data Add event, when BusinessObjectInfo.BeforeAction = True or in the ItemPressed Item Event, when pVal.BeforeAction = True. In both cases, if I need to stop b1 from adding the record, I set BubbleEvent to False.
I guess that in your case it's not working because you're catching the BusinessObjectInfo.BeforeAction = false or because you're not setting BubbleEvent to False.
Regards,
Vítor Vieira

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About InfoProducer Change Events
Calculated fields display values that depend on the values of other fields. For instance, the value of a Total field may be calculated at the level of the row or the rowset. The AttributeInfo or RowSetInfo components provide a set of events that you can use to assess when column data has changed and perform updates of calculated fields on the Java client. When one of these events fires, the application can perform an automatic calculation to update the contents of the calculated field.
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About InfoProducer Validation Events
In those situations where you need to perform validation in the data form, the InfoProducer components provide a rich set of UI-validation events that you can exploit. For example, you might use an InfoProducer-validation event:
To enable the Commission field when a user adds a new employee to either the Sales or Consulting department.
To automatically calculate a new running total whenever the quantity or price of a line item is changed on an order entry form.
You can define InfoProducer-validation events for:
SessionInfo data item objects, which can receive the following events:
validateRowSet
validateRow
validateAttribute
RowSetInfo data item objects, which can receive the following events:
validateRowSet
validateRow
validateAttribute
AttributeInfo data item objects, which can receive the following event:
validateAttribute
The following table highlights the differences between these various InfoProducer-validation levels:
Event Type
Triggering Action
Use when you want to:
validateRowSet
Occurs when focus changes from one modified RowSet to another RowSet in the same session.
Note: Currently there is no session-level event support.
Perform a calculation over all the rows in a RowSet
For example, when the sum of the order items cannot exceed a prescribed customer order limit.
Perform a validation across multiple rows
For example, to verify that only one person is the head of a department.
validateRow
Occurs when focus changes from one row to another row in the same RowSet.
Perform a validation across multiple columns
For example, when the sum of the salary plus commission plus a sign-on bonus cannot exceed a maximum, and you want to defer validation until the user has finished entering or updating all fields.
validateAttribute
Occurs when focus changes from one modified Attribute (column) to another Attribute in the same Row.
Ensure the validity of data at an atomic level
For example, to check the state of an order states: pending, backordered, or awaiting_confirmation.
Provide feedback to the user as quickly as possible
For example, when a credit card number is invalid.
How Data Forms Propogate InfoProducer Validation Events
When a user's data form interaction generates a validation, the data form typically propagates the event to more than one bound InfoProducer object. For example, the simple action of selecting a field in a new row of a InfoSwing grid will trigger these events:
validateAttribute on the bound AttributeInfo object
validateAttribute on the bound RowSetInfo object
validateAttribute on the bound SessionInfo object
validateRow on the bound RowSetInfo object
validateRow on the bound SessionInfo object
validateRowSet on the bound RowSetInfo object
validateRowSet on the bound SessionInfo object
Because user interactions can trigger events across multiple bound InfoProducer objects, data forms follow an event hierarchy that determines the sequence by which the system seeks to handle the event. InfoProducer events propagate up a tree structure that is based on the heirarchy of attributes, rows, and rowsets.
The hierarchy of InfoProducer events is represented by this tree:
RS1
R1 R2
A1 A2 A3 A4
where the attribute events fire first (at the bottom of the tree), followed by the row events, and finally the rowset events.
When the user generates a validation event for a bound InfoProducer object, the data form generates the corresponding events depending on where in the tree the action takes place. For example:
Moving between two rows in the same rowset (from R1 to R2), would generate these validation events (assuming the user moved the focus from the field for A1):
validateAttribute event delivered at A1, R1, RS1
validateRow event delivered at R1, RS1, and the session
validateRowSet event delivered at RS1 and the session
Moving between two attributes in the same row (from A1 to A2), would generate these validation events:
validateAttribute event delivered at A1, R1, RS1, and the session
The following table describes the complete sequence in which InfoProducer validation events are first fired and then delivered to listeners:
Events are fired in this order:
Events are delivered in this order:
1. attribute events
At the attribute level
At the row level
At the rowset level
At the session level
2. row events
At the row level
At the rowset level
At the session level
3. rowset events
At the rowset level
At the session level
Handling InfoProducer Events at the Desired Level
The InfoProducer object you choose to handle the attribute, row, or rowset event, will be based on:
The nature of the event
The response required by the event
For instance, to write more efficient code, you may choose not to handle attribute events at the level of the AttributeInfo object. Instead, you could write a single event handler for the RowSetInfo object to perform validation for all the fields.
Thus, the further up the hierarchy you position your event handler, the more generic the response will be.
null

Validation in Form Data add Event

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