From 37fe5deca974ffe1f2ffbdafbc95ce41dfdf1214 Mon Sep 17 00:00:00 2001
From: abazov73 <92822431+abazov73@users.noreply.github.com>
Date: Thu, 21 Sep 2023 22:56:56 +0400
Subject: [PATCH] Added reflection usage in getSelectedNodeValue method

---
 AbazovApp/AbazovAppView/FormTest.cs           |  2 +-
 .../Worker.cs                                 |  0
 .../Components/AbazovTreeView.cs              | 40 +++++++++++++++++--
 3 files changed, 37 insertions(+), 5 deletions(-)
 rename AbazovApp/{AbazovViewComponents => AbazovAppView}/Worker.cs (100%)

diff --git a/AbazovApp/AbazovAppView/FormTest.cs b/AbazovApp/AbazovAppView/FormTest.cs
index ffb38e2..dbf6589 100644
--- a/AbazovApp/AbazovAppView/FormTest.cs
+++ b/AbazovApp/AbazovAppView/FormTest.cs
@@ -113,7 +113,7 @@ namespace AbazovAppView
 
         private void buttonGetValue_Click(object sender, EventArgs e)
         {
-            Worker? worker = abazovTreeView.getSelecetedNodeValue();
+            Worker? worker = abazovTreeView.getSelecetedNodeValue<Worker>();
             if (worker == null) return;
             MessageBox.Show(worker.department + ", номер группы: " + worker.groupNumber + ", " + worker.name);
         }
diff --git a/AbazovApp/AbazovViewComponents/Worker.cs b/AbazovApp/AbazovAppView/Worker.cs
similarity index 100%
rename from AbazovApp/AbazovViewComponents/Worker.cs
rename to AbazovApp/AbazovAppView/Worker.cs
diff --git a/AbazovApp/AbazovViewComponents/Components/AbazovTreeView.cs b/AbazovApp/AbazovViewComponents/Components/AbazovTreeView.cs
index 956f8ae..5511527 100644
--- a/AbazovApp/AbazovViewComponents/Components/AbazovTreeView.cs
+++ b/AbazovApp/AbazovViewComponents/Components/AbazovTreeView.cs
@@ -7,7 +7,6 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
-using AbazovAppView;
 
 namespace AbazovViewComponents.Components
 {
@@ -32,10 +31,43 @@ namespace AbazovViewComponents.Components
             }
         }
 
-        public Worker? getSelecetedNodeValue()
+        public T? getSelecetedNodeValue<T>()
         {
-            if (treeView.SelectedNode == null || treeView.SelectedNode.Nodes.Count > 0) return null;
-            return new Worker(treeView.SelectedNode.Parent.Parent.Text, Convert.ToInt32(treeView.SelectedNode.Parent.Text), treeView.SelectedNode.Text);
+            if (treeView.SelectedNode == null || treeView.SelectedNode.Nodes.Count > 0) return default(T);
+
+            List<object> values = new List<object>();
+            List<string> fieldNames = new List<string>();
+
+            TreeNode? node = treeView.SelectedNode;
+
+            var type = typeof(T);
+            var fields = type.GetFields();
+            List<Type> types = new List<Type>();
+
+            while (node != null)
+            {
+                var field = fields.FirstOrDefault(x => x.Name == node.Name);
+                if (field != null)
+                {
+                    Type typeOfField = field.FieldType;
+                    types.Add(typeOfField);
+                    values.Add(Convert.ChangeType(node.Text, typeOfField));
+                    fieldNames.Add(field.Name);
+                }
+                node = node.Parent;
+            }
+
+            var constructor = type.GetConstructor(types.ToArray());
+            if (constructor == null) return default(T);
+            var parameters = constructor.GetParameters();
+
+            List<object> valuesForInvoking = new List<object>();
+            foreach (var param in parameters)
+            {
+                int index = fieldNames.IndexOf(param.Name);
+                valuesForInvoking.Add(values[index]);
+            }
+            return (T) constructor.Invoke(valuesForInvoking.ToArray());
         }
 
         public void setHierarchy(List<(string, bool)> fields)