Event Handler in Form Lookup doesnt work

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Posted on by SGbron

157

Hello to everyone

I try to modify the existing lookup method in a form control.

But the debuger never enter the event handler that I create.

The structure of the form and the lookup method is as you can see in the image below:

the existing lookup method is like below

[Control("ReferenceGroup")]
class LoanObject
{
public void lookup()
{
SysReferenceTableLookup lookup = SysReferenceTableLookup::newParameters(tableNum(EntAssetObjectTable), this);

Query query = new Query();
QueryBuildDataSource qbdsObjectTable = query.addDataSource(tableNum(EntAssetObjectTable));

qbdsObjectTable.addRange(fieldNum(EntAssetObjectTable, ObjectType)).value(SysQuery::value(objectTable.ObjectType));
qbdsObjectTable.addRange(fieldNum(EntAssetObjectTable, ObjectLifecycleState)).value(SysQuery::value(objectTable.ObjectType().ObjectLifecycleModel().InStorageLifecycleState));

lookup.parmQuery(query);
lookup.addLookupfield(fieldNum(EntAssetObjectTable, ObjectID));
lookup.addLookupfield(fieldNum(EntAssetObjectTable, Name));

lookup.performFormLookup();
}

}

and the new class that I create is like below

class EntAssetObjectLoanSend_Form_MyModel_handlers
{

[FormControlEventHandler(formControlStr(EntAssetObjectLoanSend, LoanObject), FormControlEventType::Lookup)]
public static void LoanObject_OnLookup(FormControl _sender, FormControlEventArgs _e)
{
FormRun form = _sender.formRun();
FormDataSource objectTable_ds = form.dataSource(formDataSourceStr(EntAssetObjectLoanSend, ObjectTable)) as FormDataSource;
EntAssetObjectTable objectTable = objectTable_ds.cursor();

info(strFmt("%1",objectTable.MyModel_MyField));

FormControlCancelableSuperEventArgs ce = _e as FormControlCancelableSuperEventArgs;
ce.CancelSuperCall();
}

}

Does anybody understand why this doesn't work and my method never run?

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Gunjan Bhattachayya 35,423 on at

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Hi SGbron,

We have encountered this issue before. The only workaround we could come up with was to set the original control to Visible = false and duplicate the control in the form extension. You can then use the lookup event in this new control to create the custom lookup.

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SGbron 157 on at

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Hi Gunjan

Thank you for your reply.

Sadly I cannot do this because this control also used while creating the records.

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Gunjan Bhattachayya 35,423 on at

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Hi SGbron,

Could you please share which form you are working with? If it is a standard form, we can take a look and try to look for workaround.

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SGbron 157 on at

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finally I found a way to do it...

By creating a class that extends the form and by override the original lookup method like this

[ExtensionOf(formStr(EntAssetObjectLoanSend))]

final class EntAssetObjectLoanSend_Form_MyModel_Extension

{

void init()

{

next init();

LoanObject.registerOverrideMethod(methodStr(FormDataObject, lookup),

formMethodStr(EntAssetObjectLoanSend, myLoanObjectLookup));

}

public void myLoanObjectLookup(FormControl _callingControl)

{

SysReferenceTableLookup sysTableLookup =

SysReferenceTableLookup::newParameters(tableNum(EntAssetObjectTable), _callingControl);

Query q = new Query();

QueryBuildDataSource qbdsObjectTable =

q.addDataSource(tableNum(EntAssetObjectTable));

qbdsObjectTable.addRange(fieldNum(EntAssetObjectTable,

ObjectType)).value(SysQuery::value(objectTable.ObjectType));

qbdsObjectTable.addRange(fieldNum(EntAssetObjectTable,

ObjectLifecycleState)).value(SysQuery::value(objectTable.ObjectType().ObjectLifecycleModel().InStor

ageLifecycleState));

qbdsObjectTable.addRange(fieldNum(EntAssetObjectTable,

MyModelMyField)).value(SysQuery::value(NoYes::Yes));

sysTableLookup.parmQuery(q);

sysTableLookup.addLookupfield(fieldNum(EntAssetObjectTable, ObjectID));

sysTableLookup.addLookupfield(fieldNum(EntAssetObjectTable, Name));

sysTableLookup.parmQuery(q);

sysTableLookup.performFormLookup();

}

}

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