Save and Retrieve Blazor Diagram

[ecadversario]

Hi guys, anybody who knows how can I save and retrieve Blazor.Diagrams?

[kobeliu9527]

I also want to know

[mdouble]

I also would like to persist my diagrams. I had the idea to store the nodes in a database. However when I do the migration I receive an exception with the following error message: "No suitable constructor was found for entity type 'Rectangle'. The following constructors had parameters that could not be bound to properties of the entity type: cannot bind 'left', 'top', 'right', 'bottom' in 'Rectangle(double left, double top, double right, double bottom)'; cannot bind 'position', 'size' in 'Rectangle(Point position, Size size)'." I am quite puzzled. Anyone any idea? Any help appreciated!

[mdouble]

I found the following article that might throw some light on what is going on: https://blog.leem.dev/adventures-in-entity-framework-core-7-constructor-binding.
However I still don't understand why EF has difficulties to bind 'left', 'top', 'right', 'bottom' in 'Rectangle(double left, double top, double right, double bottom). As much as I see the parameter names are the camel-case variant of the Pascal-case property names. So there should be no problem here.
Regarding the second constructor 'Rectangle(Point position, Size size)' I still have no idea ...

[mdouble]

Another update: I tried the workaround suggested in the article and replaced the service with the CaseInsensitivePropertyParameterBindingFactory. Unfortunately, this does not change the behavior.

[mdouble]

I got around the rectangle problem by explicitly mapping the rectangle properties:
modelBuilder.Entity<Blazor.Diagrams.Core.Geometry.Rectangle>(b => { b.Property(e => e.Left); b.Property(e => e.Top); b.Property(e => e.Right); b.Property(e => e.Bottom); });
This works partially for the GroupModel properties, too. However, I have not succeeded mapping the Children yet.

[ecadversario]

Thanks for the info

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On Sun, Dec 24, 2023, 1:38 AM mdouble, ***@***.***> wrote: I got around the rectangle problem by explicitly mapping the rectangle properties. modelBuilder.Entity<Blazor.Diagrams.Core.Geometry.Rectangle>(b => { b.Property(e => e.Left); b.Property(e => e.Top); b.Property(e => e.Right); b.Property(e => e.Bottom); }); This works partially for the GroupModel properties, too. However, I have not succeeded mapping the _children yet. — Reply to this email directly, view it on GitHub <#391 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADCULFAPMDCRQ27ILBLZXFTYK4JJTAVCNFSM6AAAAABAHAF4GCVHI2DSMVQWIX3LMV43SRDJONRXK43TNFXW4Q3PNVWWK3TUHM3TSMZUHEYTS> . You are receiving this because you authored the thread.Message ID: <Blazor-Diagrams/Blazor.Diagrams/repo-discussions/391/comments/7934919@ github.com>