Correcting all errors of types, writed, and entities.

PyroFetes/Models/ProductTimecode.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+using Microsoft.EntityFrameworkCore;
+
+namespace PyroFetes.Models;
+
+[PrimaryKey(nameof(ProductId), nameof(ShowId))]
+public class ProductTimecode
+{
+    public Product? Product { get; set; }
+    [Required] public int ProductId { get; set; }
+    
+    public Show? Show { get; set; }
+    [Required] public int ShowId { get; set; }
+    
+    [Required] public decimal Start { get; set; }
+    [Required] public decimal End { get; set; }
+}