Hello,

I have asked the same question few weeks ago with no reply. But i'll try to detail a bit more my problem and hopefully someone will have an answer.

I have a website with umbraco 4.7.1 and uComponent 2.1. Many existing nodes have one or more  UrlPickers saved as json serialized and values in them.

If I look at the contentXml table for one of them I can see the following serialized json :

<contactFormPage>
    <![CDATA[{"LinkTitle":"contact us","Mode":1,"NodeId":27793,"Url":"http://www.mywebsite.dk/contact/contact-form","NewWindow":false}]]>
</contactFormPage>

According to the uComponent documentation :

"It is theoretically possible to perform a simple upgrade of uComponents from v1.0 by simply over-writing the current uComponents.Core.dll file..."

and the UrlPicker documentation :

"Note to current users: You should be able to upgrade to this version of URL Picker without any data loss from current nodes whatsoever."

So (in my dev env) I have just replaced the my uComponent v2 dll to the v3.1 and rebuild my solution.

And when I open the backend, all the URL Pickers have lost the title and all Urls have lost the nodeId

When I publish the nodes, the contentXml for my contact form is now (v3) :

<contactFormPage>
    <![CDATA[{"Title":"","Mode":1,"NodeId":null,"Url":"http://www.kilroy.dk.local.novicell.dk/contact","NewWindow":false}]]>
</contactFormPage>

As you can see, Title didn't take the value of LinkTitle and NodeId is null....

Question : does someone has a migration script ? or do you have any suggestions on how I should code one ?

Thank you very much !

Fabrice