Components/ColumnInfo.cs

@@ -4,12 +4,12 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Components.Visual
+namespace WinFormsLibrary1
 {
     public class ColumnInfo
     {
         public string HeaderText { get; set; } = string.Empty;
-        public int Width { get; set; }
+        public int Width {  get; set; }
         public bool Visible { get; set; }
         public string Name { get; set; } = string.Empty;
         public ColumnInfo(string headerText, string name, int width, bool visible)

Components/UncheckedNullException.cs

@@ -4,7 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Components.Exceptions
+namespace WinFormsLibrary1
 {
     public class UncheckedNullException : Exception
     {

Components/UnexpectedTypeException.cs

@@ -4,7 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Components.Exceptions
+namespace WinFormsLibrary1
 {
     public class UnexpectedTypeException : Exception
     {

Components/User.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WinFormsLibrary1
+{
+    public class User
+    {
+        public string username { get; private set; }
+        public string email { get; private set; }
+        public DateTime birthday { get; private set; }
+
+        public User(string username, string email, DateTime birthday)
+        {
+            this.username = username;
+            this.email = email;
+            this.birthday = birthday;
+        }
+
+    }
+}

Components/UserControlIntegerInput.cs

@@ -1,5 +1,4 @@
-using Components.Exceptions;
-using System;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;

Components/UserControlTable.cs

@@ -8,7 +8,6 @@ using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
-using Components.Visual;
 
 namespace WinFormsLibrary1
 {
@@ -52,22 +51,9 @@ namespace WinFormsLibrary1
             dataGridViewTable.Rows.Clear();
         }
 
-        public void AddList<T>(List<T> values)
+        public void AddObjectList(List<object> os)
         {
-            ClearRows();
-            var props = typeof(T).GetProperties();
-
-            foreach (T value in values)
-            {
-                int newRowInd = dataGridViewTable.Rows.Add();
-                foreach (DataGridViewColumn col in dataGridViewTable.Columns)
-                {
-                    var prop = props.FirstOrDefault(x => x.Name == col.Name)
-                        ?? throw new InvalidOperationException($"No property {col.Name} found in type {typeof(T).Name}");
-                    var val = prop.GetValue(value);
-                    dataGridViewTable.Rows[newRowInd].Cells[col.Index].Value = val;
-                }
-            }
+            dataGridViewTable.DataSource = os ?? throw new ArgumentNullException();
         }
 
         public T GetObjectFromRow<T>()
@@ -92,5 +78,23 @@ namespace WinFormsLibrary1
             }
             return returnObject;
         }
+
+        public void AddList<T> (List<T> values)
+        {
+            ClearRows();
+            var props = typeof(T).GetProperties();
+
+            foreach (T value in values)
+            {
+                int newRowInd = dataGridViewTable.Rows.Add(value);
+                foreach (DataGridViewColumn col in dataGridViewTable.Columns)
+                {
+                    var prop = props.FirstOrDefault(x => x.Name == col.Name) 
+                        ?? throw new InvalidOperationException($"No property {col.Name} found in type {typeof(T).Name}");
+                    var val = prop.GetValue(value);
+                    dataGridViewTable.Rows[newRowInd].Cells[col.Index].Value = val;
+                }
+            }
+        }
     }
 }