Renamed the database selector form to "Login Form" and updated its UI. Moved database initialization to the login form. Made the exit file menu option on the main form functional.

2017-04-13 02:59:34 -05:00
parent a67dd966bd
commit 7b2a93cbf6
14 changed files with 6591 additions and 286 deletions
@@ -0,0 +1,76 @@
+using System;
+using System.Data.SqlClient;
+using System.Windows.Forms;
+using Microsoft.Win32;
+
+namespace AdvertsingProfitControl
+{
+    public partial class FrmLoginForm : Form
+    {
+        public bool ConnectionSuccessful;
+
+        public FrmLoginForm()
+        {
+            InitializeComponent();
+            var registryView = Environment.Is64BitOperatingSystem ? RegistryView.Registry64 : RegistryView.Registry32;
+            using (var hklm = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, registryView))
+            {
+                var instanceKey = hklm.OpenSubKey(@"SOFTWARE\Microsoft\Microsoft SQL Server\Instance Names\SQL", false);
+                if (instanceKey != null)
+                {
+                    foreach (var instanceName in instanceKey.GetValueNames())
+                    {
+                        serverNameComboBox.Items.Add(Environment.MachineName + @"\" + instanceName);
+                    }
+                }
+            }
+            //Set the default server
+            serverNameComboBox.Text = Properties.Settings.Default.DefaultServer;
+            authenticationTypeComboBox.SelectedIndex = 0;
+            serverNameComboBox.TextChanged += ServerNameTextChanged;
+        }
+
+        private void ServerNameTextChanged(object sender, EventArgs e)
+        {
+            //Disable the connect button if the combo box's text is empty.
+            connectButton.Enabled = serverNameComboBox.Text.Length != 0;
+        }
+
+        private void AttemptConnection(object sender, EventArgs e)
+        {           
+            var connectionString = "Data Source=" + serverNameComboBox.Text + ";Initial Catalog=AdvertisingProfitControl;Integrated Security=True;MultipleActiveResultSets=True;App=EntityFramework";
+            try
+            {
+                //Test the connection string with a forced timeout of 2 seconds.
+                using (var conn = new SqlConnection("Data Source=" + serverNameComboBox.Text + ";Integrated Security=True;MultipleActiveResultSets=True;App=EntityFramework;Connection Timeout=2"))
+                {                   
+                    conn.Open(); // throws if invalid
+                    conn.Close();
+                }
+                Properties.Settings.Default.ConnectionString = connectionString;
+                //Set the default server name.
+                if (Properties.Settings.Default.DefaultServer != serverNameComboBox.Text)
+                {
+                    Properties.Settings.Default.DefaultServer = serverNameComboBox.Text;
+                    Properties.Settings.Default.Save();
+                }
+                ConnectionSuccessful = true;
+                //Try to initialize the database.
+                var db = new AdvertisingProfitControlModel();
+                //Force the UI thread to draw the label's text so the user can see it.
+                informationLabel.Text = @"Connection successful! Preparing main form...";
+                informationLabel.Invalidate();
+                informationLabel.Update();
+                informationLabel.Refresh();
+                db.Database.Initialize(false);            
+                db.Database.Connection.Close();
+                Close();
+            }
+            catch (SqlException ex)
+            {
+                MessageBox.Show(ex.Message, @"Connection Failed", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                informationLabel.Text = @"Failed to connect to a database.";
+            }
+        }
+    }
+}