Connection style is different

[rui]

select one connection the line color is black,  but select more than one connection  the line color is  outside  blue and inside black

is there any mothed to set them as a same style

[Milena]

Hi Rui,

The described behavior is by design in diagram in order to see the difference when you select only one item or a group of items. If you want to change this, you can use a custom style and edit the template of RadDiagramConnection as you can see in our help topic Editing Control Templates.

For your convenience I implemented this approach in the attached project where I used Office_Black theme, NoXaml dlls and changed the Selected visual state to be the same as SelectedInGroup. I hope this information helps.

Regards,
Milena
Telerik

[rui]

Thank you very much!

the solution resolved my problem