How to validate attachment file name with name present in sharepoint list

[Hemasai1999]

Hi Team,
I need to do one validation , where

attachement uploaded in this attachment box should validate artifact id column in my sharepoint list

and users will upload attachment in this format(artf012345_TrainingProgram). I need to seperate (artf012345) this part from file name and need to validate with artifact id column in sharepoint list
Any suggestion would be helpful
Thanks in Advance

[BrianPadgett]

I have an app where I validate if an attachment has been added or removed.  Use the following to create a collection of attachment names.

ClearCollect(colArtifactAttachmentTbl,DataCardValueNN.Attachments.Name)

Then you can compare to your SharePoint list.