3,957
Hi,
I've created a JavaScript function ControlAdd-in which return a DataUri in Text, and save it in BLOB using AL extensions.
I've tried using Text Datatype but the uri exceeds 250 characters. Thus, cannot store it as a text.
*This post is locked for comments
Yes Azure Function could be a solution for converting MemoryStream. In NAV 2018 you've also codeunit 704 for handling MemoryStream objects.
Hi Stefano,
It worked. But I'm facing another issue as to convert the DataUri to Memory Stream. Can this be done through azure functions assuming that we can convert in some way and then store it as a BLOB.
You can save the DataUri in a BigText variable and then save it to a BLOB field. Something like:
myTable.BlobField.CREATEOUTSTREAM(outstr);
varBigText.WRITE(outstr);
myTable.INSERT;
Let me explain the scenario
Scenario:
In NAV 2017 we used a Signature Control Add-in. We created the signature add-in with its core as a canvas which was created using Javascript. The interaction with the Javascript was done with the help of events i.e ClearSignature Event, AcceptSignature Event. These events send the data in the form MemoryStream. In NAV 2018 we've used DataUri to send data via the AcceptSignature Event. As the event which is called from Javascript doesn't allow parameter as a BLOB file in AL.
Is there a way to convert the DataUri which is greater than 2500 characters be converted to BLOB?
What event do you mean? It's quite difficult without seeing the code.
Another idea could be to save the image as a temporary file and then from AL store it on a BLOB field.
Hi Stefano,
Tried that as well but there is event trigger from JS to AL which doesnt allow BLOB as its parameter.
Text fields on tables have this limit. I think you can also directly save the Canvas as BLOB from JS. There are samples to do so on the net.
Hi Stefano,
I've converted canvas to DataUri which is a text but since it exceeds 250 characters, it cannot be stored as text. Is it possible to convert Text having length >2500 to blob in AL??
You can store it as a BLOB and convert/deconvert it as needed. Check here:
[View:https://stackoverflow.com/questions/23150333/html5-javascript-dataurl-to-blob-blob-to-dataurl]
Stay up to date on forum activity by subscribing. You can also customize your in-app and email Notification settings across all subscriptions.
#1
André Arnaud de Cal...
291,280
Super User 2024 Season 2
#2
Martin Dráb
230,235
Most Valuable Professional
#3
nmaenpaa
101,156
Share
Report
All responses (
Answers (