How is the signature image stored?

[bartrikers]

Hi,

I wanted to update from the 'old' signature widget to the new but I can't seem to figure out how the signature image is stored?

I've included the widget in a dataview of an object that is a specialization of System.Image.

Setting the signature works, and also the HasSignature boolean is set to true, but when I invoke my save microflow, the Image.HasContents attribute is false, indicating the image has no content.

How can I access the signature, either as a Base64 string or as the Image content?

Kind regards,
Bart Rikers

[SamuelMuloki]

Hello @bartrikers you can access it as image content, add a page with a template grid, and connect it to your entity as a data source, you'll be able to see your previously saved signatures.
cheers Samuel

[bartrikers]

Hi Samuel,

Thanks for the reply, but I still can't get it to work. My question is: how can I access the image in a microflow?

I've included a testproject (rename .zip to .mpk) or check https://signaturetest-sandbox.mxapps.io

SignatureTest.zip

• Open and run the testproject, click New in the datagrid to create a new document ( and the underlying signature object, which is a specialization of System.Image)

• Set the signature: you will see that the Reset button will appear, indicating the HasSignature boolean is set to true

• Now press save, you will get the message ' signature is set but the Image object has no content.'. This is because in the underlying save microflow (IVK_Document_Save) there is a validation, and the Signature.HasSignature is true, but the Signature.HasContent is false, indicating the content of the image is not set.
  

• After you've saved, at the bottom of the homepage there is a template grid, this is connected to the signature object as you said, but as you can see by the red cross, the signature itself is not visible.
  

• Also, if you open the newly created document again, you will not see the Signature.
  

How can I get this to work? And how can I access the image content in a microflow?

Thanks!

Kind regards,
Bart

[Andries-Smit]

The fix is now available trough the app store, in v1.0.1
https://appstore.home.mendix.com/link/app/107984/