Hello,
first of all the "UI for ASP.NET Core Forum" has no category for "Dialog", so I post my request here.
I tried to implement the dialog with help of the TagHelper as described here http://demos.telerik.com/aspnet-core/dialog/tag-helper. But I found no way to implement some action buttons, as I can do with the C# Razor Helper. I also found this page http://docs.telerik.com/aspnet-core/helpers/dialog but under the tab "tagHelper" there is some strange tag-format with ":" which is not working.