вывод данных во view-модель с использованием методов

DepartmentPortal/Common/DatabaseCore/Models/Department/StudentGroup.cs

@@ -4,6 +4,7 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
 using System.Runtime.Serialization;
 using System.Text;
 
@@ -59,5 +60,12 @@ namespace DatabaseCore.Models.Department
 		public StudentGroup SecurityCheck(StudentGroup entity, bool allowFullData) => entity;
 
 		public override string ToString() => $"{EducationDirection?.ShortName}-{AcademicCourse}{GroupNumber}";
+
+		//-------------------------------------------------------------------------
+
+		public int GetStudnetsByState(int state)
+        {
+			return Students?.Where(x => x.StudentState == state)?.Count() ?? 0;
+        }
 	}
 }

DepartmentPortal/Common/ModuleTools/Attributes/MapConfigurationAttribute.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 
 namespace ModuleTools.Attributes
 {
@@ -26,6 +27,8 @@ namespace ModuleTools.Attributes
 		/// </summary>
 		public bool AllowCopyWithoutRigth { get; set; } = true;
 
+		public Type[] MethodParams { get; set; } = null;
+
 		/// <summary>
 		/// Настройка для полей сущности правил маппинга
 		/// </summary>

DepartmentPortal/Common/ModuleTools/BusinessLogics/Mapper.cs

@@ -75,6 +75,39 @@ namespace ModuleTools.BusinessLogics
 								value = (value as ICollection)?.Count;
 								break;
 							}
+							else if (prop == "Method")
+                            {
+								int index = 0;
+								while (true)
+                                {
+									if (props[index++] == "Method")
+										break;
+									if (index == props.Length)
+                                    {
+										break;
+                                    }
+                                }
+								var methodName = props[index].Split('[')?[0];
+								if (string.IsNullOrEmpty(methodName))
+								{
+									break;
+								}
+								var parameters = props[index].Split(new char[] { '[' , ']'}, StringSplitOptions.RemoveEmptyEntries)?[1].Split(',');
+								var objs = new object[parameters.Length];
+								for(int i = 0; i < parameters.Length; ++i)
+                                {
+									var type = parameters[i].Split(':')[0];
+									switch(type)
+                                    {
+										case "Enum":
+											objs[i] = (int)Enum.Parse(customAttribute.MethodParams[i], parameters[i].Split(':')[1]);
+											break;
+                                    }
+                                }
+								value = typeFrom.InvokeMember(methodName, BindingFlags.InvokeMethod | BindingFlags.Public | BindingFlags.Instance, null, value, objs);
+								break;
+
+							}
 							var bindingProperty = value.GetType().GetProperty(prop);
 							if (bindingProperty != null)
 							{

DepartmentPortal/Department/DepartmentBusinessLogic/ViewModels/StudentGroupViewModels.cs

@@ -3,6 +3,7 @@ using ModuleTools.Attributes;
 using ModuleTools.Enums;
 using ModuleTools.ViewModels;
 using System;
+using System.Collections.Generic;
 
 namespace DepartmentBusinessLogic.ViewModels
 {
@@ -49,9 +50,14 @@ namespace DepartmentBusinessLogic.ViewModels
 		[MapConfiguration("GroupNumber")]
 		public int GroupNumber { get; set; }
 
+		[MapConfiguration("Method.GetStudnetsByState[Enum:Учится]", IsDifficle = true, MethodParams = new Type[] { typeof(StudentState) })]
+		public int StudentActualCount { get; set; }
+
+		[MapConfiguration("Method.GetStudnetsByState[Enum:Академ]", IsDifficle = true, MethodParams = new Type[] { typeof(StudentState) })]
+		public int StudentAcademCount { get; set; }
+
 		[ViewModelControlListProperty("Количество студентов")]
-		[MapConfiguration("Students.Count", IsDifficle = true)]
+		public string StudentCount => $"{StudentActualCount + StudentAcademCount} ({StudentActualCount}, {StudentAcademCount})";
-		public int StudentCount { get; set; }
 
 		[ViewModelControlElementProperty("Куратор", ControlType.ControlGuid, MustHaveValue = false, ReadOnly = false, ControlTypeObject = "DepartmentWindowsDesktop.EntityControls.ControlLecturerList, DepartmentWindowsDesktop")]
 		[MapConfiguration("LecturerId")]