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Power Platform Community / Forums / Power Apps / patching a signature t...
Power Apps
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patching a signature to sharepoint list

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Posted on by Microsoft Employee

I have a pen input that saves a signature into a variable (varBlob3). This is created on success of a click of a button Set(varBlob3,JSON(PenInput3.Image,JSONFormat.IncludeBinaryData)).

 

I want to patch the link (data:image/png:base64...to a column in sharepoint. On my submit button, I use this formula: Patch('Service Report PDF', First(Filter('Service Report PDF', Customer=DataCardValue39.Text)), {CustomerSignature:varBlob3}) but it's not updating in my Sharepoint list.

 

Any ideas? Thanks!

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  • Verified answer
    WarrenBelz Profile Picture
    156,306 Most Valuable Professional on at

    Hi @Anonymous ,

    Assuming you have checked the Variable varBlob3 to ensure you actually have data in it, put this on a Label

    First(
     Filter(
     'Service Report PDF', 
     Customer=DataCardValue39.Text
     )
    ).ID

    and see if it displays the ID of the record you want to patch to.

    You can also use

    LookUp(
     'Service Report PDF', 
     Customer=DataCardValue39.Text
    ).ID

    to avoid the Delegation warning

     

    Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

    Visit my blog Practical Power Apps

  • Community Power Platform Member Profile Picture
    Microsoft Employee on at

    Thank you so much! That helped me realize the issue and also helped me with figuring out the delegation issue. Thanks!

  • Community Power Platform Member Profile Picture
    Microsoft Employee on at

    One follow-up question. I got it to work but the first time I had someone out in the field collecting a signature, it didn't save to the Sharepoint list. Is there any way of recovering the data that was collected in the variable? Thanks!

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