<![CDATA[Custom itemModel, passing "complex variant" from QML]]>I have a custom item model extending QAbstractItemModel and Implementing setData method. On the QML I can assign data to roleNames and the setData method gets called correctly with the QVariant instance but only if the data is a basic type. Is there a way to pass a QVariantMap from QML to C++ through setData?

Example in QML:
rolename = "string" //works fine
rolename = {key : "value"} //does not work (QVariant is empty on c++ side)
rolename = {"key" : "value"} //does not work (QVariant is empty on c++ side)

]]>https://forum.qt.io/topic/78668/custom-itemmodel-passing-complex-variant-from-qmlRSS for NodeTue, 21 Apr 2026 14:43:18 GMTThu, 27 Apr 2017 08:47:43 GMT60<![CDATA[Reply to Custom itemModel, passing "complex variant" from QML on Tue, 02 May 2017 06:13:55 GMT]]>Thanks, that worked perfectly.

My error was trying to convert the Variant to a JsonObject instead of a VariantMap on the c++ side.

]]>https://forum.qt.io/post/391064https://forum.qt.io/post/391064Tue, 02 May 2017 06:13:55 GMT<![CDATA[Reply to Custom itemModel, passing "complex variant" from QML on Fri, 28 Apr 2017 17:35:19 GMT]]>setData uses QVariant as argument probably you need to convert to QVarianMap using QVariant::toMap on c++ side

]]>https://forum.qt.io/post/390581https://forum.qt.io/post/390581Fri, 28 Apr 2017 17:35:19 GMT