You are trying to use code for
the MVC5 version of the control[
^]. But you've tagged your question as Blazor, which means you're using the ASP.NET Core version of the control.
The ASP.NET Core version doesn't accept a delegate as a parameter to the
RichEdit
method. It only accepts a
string
representing the name of the element:
BuilderFactoryRichEditExtensions.RichEdit(BuilderFactory, String) Method | ASP.NET Core Controls | DevExpress Documentation[
^]
There doesn't seem to be an equivalent for the
CallbackRouteValues
; you will need to consult
the documentation[
^] and
examples[
^] to determine how to update your code.