TreeDropdownField doesn't work with Widget::getCMSFields() #26

MattyBalaam opened this Issue Nov 1, 2012 · 4 comments


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same here. i get this error:
Fatal error: Call to a member function FormAction() on a non-object in FormField.php on line 139


Hi, if you see here you can see more details about this issue: #20

The best solution I have come up with so far is on this thread:

It would be great to have TreeDropdownField for Widgets.


There's a good extension you can use to manage widgets via a GridField in SS3, so you can use UploadField's and TreeDropdownField's etc too -

@kmayo-ss kmayo-ss referenced this issue in silverstripe/silverstripe-framework Mar 3, 2014

TreeDropDownField in Widgets - CMS error #2906

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