Optimize view of company admin page.

cicm_web/Areas/Admin/Models/CompanyViewModel.cs

@@ -0,0 +1,37 @@
+using System;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using Cicm.Database;
+
+namespace cicm_web.Areas.Admin.Models
+{
+    public class CompanyViewModel
+    {
+        public int    Id   { get; set; }
+        public string Name { get; set; }
+        [DisplayFormat(DataFormatString = "{0:d}", ApplyFormatInEditMode = true)]
+        [DataType(DataType.Date)]
+        public DateTime? Founded { get; set; }
+        [DisplayFormat(DataFormatString = "{0:d}")]
+        [DataType(DataType.Date)]
+        public DateTime? Sold { get; set; }
+        public string SoldTo  { get; set; }
+        public string Country { get; set; }
+        [Required]
+        public CompanyStatus Status { get; set; }
+
+        [DisplayName("Sold")]
+        [NotMapped]
+        public string SoldView =>
+            Status != CompanyStatus.Active && Status != CompanyStatus.Unknown
+                ? Sold is null
+                      ? "Unknown"
+                      : Sold.Value.ToShortDateString()
+                : Sold is null
+                    ? SoldTo is null
+                          ? ""
+                          : "Unknown"
+                    : Sold.Value.ToShortDateString();
+    }
+}