Hi Giorgos,
Regarding your SelectAll cursor behavior not works in GridNumericColumn query,
As we said earlier, we have used SfNumericTextBox control for rendering GridNumericColumn in SfDataGrid and the SfNumericTextBox control does not have SelectAllBehavior. Now the concerned team has logged a feature report regarding the SelectAllBehavior support in SfNumericTextBox as tentative and the same will be available from any of our upcoming releases. Since the feature is tentative, we can’t able to provide the exact timeline for this feature. Please check our websites periodically to know the list of implemented features.
Regards,
Divakar.