{{date}}

Workshop2/Form1.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Workshop2
+{
+    public partial class Form1 : Form
+    {
+        //Form2 f2 = new Form2();
+        public Form2 f2;
+        public Form1()
+        {
+            InitializeComponent();
+        }
+        private void showForm2button_Click(object sender, EventArgs e)
+        { 
+            if (f2 == null)
+            {
+                f2 = new Form2();// you need to set the textbox in form2 to public
+                f2.textBox1.Text = "Initially Set from form1";// need to ensure if the form is closed it is dereferenced
+                f2.FormClosed += delegate { 
+                    f2 = null; 
+                };
+            }
+            f2.Show();
+        }
+    }
+}