How to call customized form datasource method in form datasource extension

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Posted on by Tony Mok

577

I extend purchline datasource in purchtable form as below

[ExtensionOf(formDataSourceStr(PurchTable,PurchLine))]
final class PurchTable_PurchLine_Extension
{
    public boolean method1()
    {
        ...
        return true;
    }
}

And, I call the my form datasource method under form control event hander.

/// 
    ///
    /// 
    /// 
    /// 
    [FormDataFieldEventHandler(formDataFieldStr(PurchTable, PurchLine, ConfirmedDlv), FormDataFieldEventType::Modified)]
    public static void ConfirmedDlv_OnModified(FormDataObject sender, FormDataFieldEventArgs e)
    {
        Object PurchLine_DS = sender.datasource().formRun().dataSource(formDataSourceStr(PurchTable, PurchLine));

        PurchLine_ds.method1();
    }

And the error is thrown

FormDataSource object does not have method 'method1'.

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Tony Mok 577 on at

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RE: How to call customized form datasource method in form datasource extension

Nikolaos Mäenpää,

I move to form root level, thanks.

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Tony Mok 577 on at

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RE: How to call customized form datasource method in form datasource extension

Sukrut Parab,

I change it to Object PurchLine_DS = sender.datasource();

The same error "FormDataSource object does not have method 'method1'." is thrown

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Sukrut Parab 71,699 Moderator on at

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RE: How to call customized form datasource method in form datasource extension

Do you want purchline datasource ? If so , did u try sender.datasource() ?

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Tony Mok 577 on at

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RE: How to call customized form datasource method in form datasource extension

Compare with previous purchline field, and update field values

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nmaenpaa 101,160 Moderator on at

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RE: How to call customized form datasource method in form datasource extension

Sorry, I missed that. In that case I think your scenario might not yet be supported in Chain of Command. Could you add your method to PurchLine table instead? Or on the form root level? What is the purpose of that method?

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Tony Mok 577 on at

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RE: How to call customized form datasource method in form datasource extension

Nikolaos Mäenpää,

Object PurchLine_DS is already declared as Object type.

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nmaenpaa 101,160 Moderator on at

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RE: How to call customized form datasource method in form datasource extension

Cast the data source into Object type.

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