Based on discussion https://wpftoolkit.codeplex.com/discussions/534906.
When a CheckComboBox is used in a DataTemplate, has a SelectedValue and its Delimiter is something else than a coma, the selectedValue is not active when loaded.
Comments: ** Comment from web user: MartinRobins **
When a CheckComboBox is used in a DataTemplate, has a SelectedValue and its Delimiter is something else than a coma, the selectedValue is not active when loaded.
Comments: ** Comment from web user: MartinRobins **
Apologies for the delay in responding, but thank you for your fast response.
For now, I am "fudging" in code so I display on screen with the comma's but behind the scenes I convert to spaces. This way, I can avoid having to build a custom version of the toolkit.