Live Form - Events & Methods
Events
Live Form behavior can be customized with the help of the call-back events. These events can be accessed from the events tab on the Properties panel. The trigger for the event can be JavaScript, another Variable call, and more.
On before service call
This event will be called on saving the live form. Any validation checks can be performed here. Returning false from the script will stop the live form save.
Example
Page.liveform1Beforeservicecall = function($event, $operation, $data) {
//$operation: Current operation being performed - INSERT or UPDATE or DELETE
//$data has the data of the all widgets inside the live form. This data can be modified and validated before sending the request.
function isValidData(data) {
/*restrict password to be minimum of 6 characters*/
if ($data.password) {
if ($data.password.length < 6) {
return false;
}
} else {
return false;
}
}
return isValidData($data)
};
On result
This event will be called after the live form is saved and API returns a response. The event is triggered in both success and failure cases.
Example
Page.liveform1Result = function($event, $operation, $data) {
//$operation: operation performed - INSERT or UPDATE or DELETE
//$data has the response returned from the API.
console.log("server response:", $data);
};
On success
This event will be called after the live form is saved and API returns a success response.
Example
Page.liveform1Success = function($event, $operation, $data) {
//$operation: operation performed - INSERT or UPDATE or DELETE
//$data has the response returned from the API.
console.log("The inserted/updated/deleted data:", $data);
};
On error
This event will be called after the live form is saved and API returns a failure response.
Example
Page.liveform1Error = function($event, $operation, $data) {
//$operation: operation performed - INSERT or UPDATE or DELETE
//$data has the error message returned from the API.
console.log("Error returned from server:", $data);
};
Methods
Live Form has few methods exposed on widget scope to Edit, Delete, Add record and trigger actions like reset and cancel.
For the following script samples, we are considering the hrdb Employee table. **EmployeeForm** is bound to theSelectedItemof a Data Grid corresponding toEmployee` Live Variable.
Delete a record
Page.Widgets.EmployeeForm.delete(); //Deletes the current record that is bound to EmployeeForm.
Update a record
Page.Widgets.EmployeeForm.save(); //Updates the current record bound
Add a new record
Page.Widgets.EmployeeForm.new(); //Adds a new record to dataset that is bound to EmployeeForm.
Reset a form
Page.Widgets.EmployeeForm.reset(); //Resets the form to initial state.
Cancel an Edit operation
Page.Widgets.EmployeeForm.cancel(); //Cancels the form edit.