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Add a changelog entry for the DVM.HasValue change.

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Robin Dunn
2020-04-15 12:25:16 -07:00
parent ab1ad6d536
commit e10edf0991
1 changed files with 7 additions and 1 deletions
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CHANGES.rst
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@@ -141,7 +141,13 @@ New and improved in this release:
can be used even on the platforms that have a native version. Note that due to
internal changes to support both types of animations, some API changes in how
the Animation objects are created. See the AnimationCtrl.py sample in the demo
for the various usage patterns (#1579)
for the various usage patterns. (#1579)
* DataViewModel.HasValue can be overridden and will inform the DataViewCtrl
whether or not an item and column has data. If HasValue returns False, then
GetValue for that item/col will not be called. This allows a distinction
between a truely empty cell, and one that has a value even if it is an empty
string. (#1600)
* Added wrappers for the wx.grid.GridBlockCoords, wx.grid.GridBlocks, and
wx.grid.GridBlockDiffResult classes, as well as associated new methods in the