Override form data source field lookup - LedgerJournalTransCustPaym

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Posted on by xppdev

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Hello everyone,

How can I override the lookup method for MarkedInvoice data source field in LedgerJournalTransCustPaym(Form)? I tried this approach but it won't allow me to replicate the lookup method in my ExrensionOverrideClass

Goal: Trying to change the line
args = new Args(formStr(CustOpenInvoicesLookup));
and insert my own form like args = new Args(formStr(CustOpenInvoicesLookupCustom));

[DataField]
class MarkedInvoice 
{
...
...
    //
    // Displays a custom lookup form that provides the user with the means of selecting
    // a MarkedInvoice record filtered by the AccountNum (customer) field.
    //
    public void lookup(FormControl _formControl, str _filterStr)
    {
        FormRun formRun;
        Args args;
        args = new Args(formStr(CustOpenInvoicesLookup));
        args.record(ledgerJournalTrans);
        args.caller(element);
        args.lookupValue(ledgerJournalTrans.MarkedInvoice);

        if (_filterStr != '')
        {
            args.parm(_filterStr);
        }

        formRun = ClassFactory::formRunClassOnClient(args);
        formRun.init();

        this.performFormLookup(formRun, _formControl);
    }

...
...
}

Screenshots below are from my ExtensionOverrideClass

Thanks everyone

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Answers (2)

WillWU 22,361 on at

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RE: Override form data source field lookup - LedgerJournalTransCustPaym

Hi xppdev,

Where did you create your new lookup method.

How did you pass the parameter in the registerOverrideMethod() method?

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xppdev 120 on at

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RE: Override form data source field lookup - LedgerJournalTransCustPaym

Hi Will, here's my class

class LedgerJournalTransCustPaymCopyExtensionOverrides { protected void new() { } public static LedgerJournalTransCustPaymCopyExtensionOverrides construct() { return new LedgerJournalTransCustPaymCopyExtensionOverrides(); } public void lookup(FormControl _formControl, str _filterStr) { FormRun formRun; Args args; //Planning to change the CustOpenInvoicesLookup to my own form args = new Args(formStr(CustOpenInvoicesLookup)); /// args.record(ledgerJournalTrans); args.caller(element); args.lookupValue(ledgerJournalTrans.MarkedInvoice); if (_filterStr != '') { args.parm(_filterStr); } formRun = ClassFactory::formRunClassOnClient(args); formRun.init(); this.performFormLookup(formRun, _formControl); } }

My Event handler class

class LedgerJournalTransCustPaymCopyEventHandler { ///
/// ///
/// /// [FormDataSourceEventHandler(formDataSourceStr(LedgerJournalTransCustPaym, LedgerJournalTrans), FormDataSourceEventType::Initialized)] public static void LedgerJournalTrans_OnInitialized(FormDataSource sender, FormDataSourceEventArgs e) { Info("Custom lookup"); var overrides = LedgerJournalTransCustPaymCopyExtensionOverrides::construct(); sender.object(fieldNum(LedgerJournalTrans, MarkedInvoice)).registerOverrideMethod(methodStr(FormDataObject, lookup), methodStr(LedgerJournalTransCustPaymCopyExtensionOverrides, lookup), overrides); } }

Thank you

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Verified answer

Martin Dráb 236,503 Most Valuable Professional on at

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RE: Override form data source field lookup - LedgerJournalTransCustPaym

It seems that you don't know how to get references to ledgerJournalTrans, element and this variables.

this is trivial - simply use _formControl instead.

element represents the current FormRun object. You can get it by calling _formControl.formRun().

If the form control is bound to ledgerJournalTrans data source, you can get a reference to it by calling _formControl.dataSourceObject(). Then call its cursor() method to get the current table buffer.

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Verified answer

WillWU 22,361 on at

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RE: Override form data source field lookup - LedgerJournalTransCustPaym

Hi partner,

The ledgerJournalTrans is not instantiated in the class, please refer to Martin's method to instantiate the variable.

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xppdev 120 on at

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RE: Override form data source field lookup - LedgerJournalTransCustPaym

Thanks Martin, was able to get it using the code below

FormRun formRun = _formControl.formRun(); FormDataSource ledgerJournalTransDS = formRun.dataSource(formDataSourceStr(LedgerJournalTransCustPaym, LedgerJournalTrans)); FormDataObject markedInvoice = ledgerJournalTransDS.object(fieldNum(LedgerJournalTrans, MarkedInvoice)); LedgerJournalTrans ledgerJournalTrans = ledgerJournalTransDS.cursor(); Args args; args = new Args(formStr(CustOpenInvoicesLookupCopy)); args.record(ledgerJournalTrans); args.caller(formRun); args.lookupValue(ledgerJournalTrans.MarkedInvoice); if (markedInvoice.getValue() != '') { args.parm(markedInvoice.getValue() ); } FormRun formRun2 = _formControl.formRun(); formRun2 = ClassFactory::formRunClassOnClient(args); formRun2.init(); markedInvoice.performFormLookup(formRun2, _formControl);

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