Hello!
How can I have an editor that allows tri state edit? (true, false, null)
I have an Ultragrid bound to an object with a nullable Boolean property. So fare no problem the values are displayed correct with a checkbox (checked, unchecked, intermediate). The problem is that the user has no possibility to set the value back to intermediate once checked or unchecked is selected.
What I have tried/checked so far:
* The datatype of the column is recognized by the grid (nullable Boolean) and I can’t change it since it is bound.
* I can’t set an Editor for that column since the list of editors is empty.
What am I doing wrong? Is this a bug? Can anybody help?
Uli