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