How to delete attachment in sharepoint item

[JACK_LAI_1117]

HI ALL:

    I upload my jpg file with powerapps , and save it in sharepoint list item attachment .

   Now I want to delete one of the jpg file in attachments with powerapps , so how could I delete it ???

I use this two methods , but not works~~~

1-->Remove('For-pic-upload',(LookUp('For-pic-upload',Title=Dropdown1.Selected.Title).Attachments).DisplayName) in ThisItem.DisplayName

2-->RemoveIf('For-pic-upload',DisplayName=ThisItem.DisplayName)

[rampprakash]

Hello @JACK_LAI_1117,

You can Add Attachment field in Powerapps, there we can easily remove the attachment easily. Let me know if you need any moe help to assist you.

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[leyburn19]

If you have a form built on the SharePoint list and navigate to that record,  you will see attachments to delete.  I assume you are looking at a Gallery based on the list as Datasource.  So create a form that is based on the selected item and simply only show attachments.  Then they can be removed

[WarrenBelz]

@JACK_LAI_1117 ,

Just adding to @leyburn19's and @rampprakash's comments - you cannot delete attachments programmatically in Power Apps. This only way would be via Power Automate as below and send the relevant values.

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[JACK_LAI_1117]

HI ALL:

  I still want to use form to attachment . This is my step !!!

NO 1 : in this sharepoint item has two jpg file 

NO 2 : I delete dafadsfsa.jpg and add  " new-comer.jpg"

NO 3 : I click "Button " , this is my code 

NO 4

After I click , I find in my sharepoint item , only have newer jpg file , but the old one jpg file will gone ~~~~~

So , I think this is config in forms or powerapps .....Which config sholud I modify ???

[JACK_LAI_1117 · Accepted solution]

HI ALL:

  I found the answer !!!

NO 1 :

 form mode is "Edit"

NO 2 : 

Form "item"

NO 3 :

keypoint is submitform() and resetform()

Finally , I can modify it (add jpg , del jpg )  then click sumbit , so I can get what I want !!!