Using PropertyGridValueTemplateSelector

Hello,

PropertyGridValueTemplateSelector is a DataTemplateSelector that requires the item to be an IPropertyModel and it returns the appropriate value-editing template for that model.  That being said, it generally has to walk up the property model tree to get the PropertyGrid that created the model and use info from that to make a DataTemplate selection.  The logic used is "Property Editors" documentation topic.

PropertyGrid is itself a TreeListView.  We effectively set the PropertyGridValueTemplateSelector instance to the TreeListViewColumn.CellTemplateSelector for the value column.

Thanks,

That pretty much matches my understanding.  I cant figure out why PropertyGridValueTemplateSelector.SelectTemplate(IPropertyModel, gridInstance) returns nothing.  I can't see any meaningful difference between my IPropertyModel (produced manually), and the one created by the PropertyGrid.

Regards,

D'Arcy

Hello,

We use an internal class as the root of the data model tree, and that class has a pointer to the PropertyGrid.  If you are manually constructing your data model tree, then the PropertyGridValueTemplateSelector wouldn't be able to find the owner PropertyGrid and then couldn't do most of its logic.  Maybe that's what's going on here.

You'd probably have to make your own custom template selector class.  If you'd like our PropertyGridValueTemplateSelector source code to use as a guide for our logic, please write our support address and we can send it to you.  But you'd have to alter it to somehow point it to a PropertyGrid internally.