Start working on Firewall Rules

EduNetworkBuilder/FirewallEditor.cs

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+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 EduNetworkBuilder
+{
+
+    public class FirewallRule
+    {
+        public string Source;
+        public string Destination;
+        public FirewallRuleType Action;
+    }
+
+    public partial class FirewallEditor : Form
+    {
+        public FirewallEditor()
+        {
+            InitializeComponent();
+            UpdateForm();
+        }
+
+        void UpdateForm()
+        {
+            if (lbRules.SelectedIndex > 0)
+                btnDel.Visible = true;
+            else
+                btnDel.Visible = false;
+        }
+
+        private void btnNew_Click(object sender, EventArgs e)
+        {
+
+        }
+
+        private void btnDel_Click(object sender, EventArgs e)
+        {
+
+        }
+
+        private void btnDone_Click(object sender, EventArgs e)
+        {
+
+        }
+    }
+}