# Syntax to access fields in external dll in Updatable BAQ

**Category:** [Epicor ERP 10](https://www.epiusers.help/c/e10/5)
**Created:** 2016-10-21 15:29 UTC
**Views:** 747
**Replies:** 2
**URL:** https://www.epiusers.help/t/syntax-to-access-fields-in-external-dll-in-updatable-baq/35913

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## Post #1 by @bbrowning

within a the Updatable BAQ Method Directive, I am calling an external BAQ.  The method signature is:

 public void FieldUpdate(
            Ice.Tablesets.DynamicQueryTableset queryDS,
            ref System.String fieldName,
            System.Data.DataSet queryResultDataset, Ice.Tablesets.ContextTableset ctx)

I need to access fields within the queryDS Tableset.  Can anyone provide the syntax to do this?

thank you.

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## Post #2 by @josecgomez

When you say you are calling an External BAQ you mean you want to execute one?

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## Post #3 by @bbrowning

no.  This is an updatable BAQ.  The update method of this updatable BAQ invokes an external method in a custom DLL.

The signature is for the method within the DLL that I am invoking.  In my original question, I thought the BAQ data would be in the queryDS, but Now I believe it is in the queryResultDataset.

I since this is a standard dataset, I was able to get the information I needed.

thanks,

Bruce

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**Canonical:** https://www.epiusers.help/t/syntax-to-access-fields-in-external-dll-in-updatable-baq/35913
**Original content:** https://www.epiusers.help/t/syntax-to-access-fields-in-external-dll-in-updatable-baq/35913