System.Data.SQLite

Artifact 4b2eca7afaf6aac85bca049af3629912ae51b627:

• File SQLite.Designer/SQLiteConnectionProperties.cs — part of check-in [92a5b1ec00] at 2006-02-24 23:26:58 on branch sourceforge — work in progress (user: rmsimpson size: 2327)

/********************************************************
 * ADO.NET 2.0 Data Provider for SQLite Version 3.X
 * Written by Robert Simpson (robert@blackcastlesoft.com)
 * 
 * Released to the public domain, use at your own risk!
 ********************************************************/

namespace SQLite.Designer
{
  using System;
  using Microsoft.VisualStudio.Data.AdoDotNet;
  using Microsoft.VisualStudio.Data;
  using Microsoft.Win32;

  internal class SQLiteConnectionProperties : AdoDotNetConnectionProperties
  {
    private static System.Reflection.Assembly _sqlite = null;

    static SQLiteConnectionProperties()
    {
      AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve);
    }

    private static System.Reflection.Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
    {
      if (args.Name.StartsWith("System.Data.SQLite", StringComparison.InvariantCultureIgnoreCase))
      {
        return SQLiteAssembly;
      }
      return null;
    }

    internal static System.Reflection.Assembly SQLiteAssembly
    {
      get
      {
        if (_sqlite == null)
        {
          using (RegistryKey key = Registry.LocalMachine.OpenSubKey("Software\\Microsoft\\.NETFramework\\v2.0.50727\\AssemblyFoldersEx\\SQLite"))
          {
            if (key != null)
            {
              _sqlite = System.Reflection.Assembly.LoadFrom(System.IO.Path.Combine(key.GetValue(null).ToString(), "System.Data.SQLite.DLL"));
            }
          }
        }
        return _sqlite;
      }
    }

    public SQLiteConnectionProperties() : base("System.Data.SQLite")
    {
    }

    public SQLiteConnectionProperties(string connectionString) : base("System.Data.SQLite", connectionString)
    {
    }

    public override string[] GetBasicProperties()
    {
      return new string[] { "Data Source" };
    }

    public override bool  IsComplete
    {
      get 
      {
        return true;
        //if (!(this["Data Source"] is string) ||
        //  (this["Data Source"] as string).Length == 0)
        //{
        //  return false;
        //}

        //return true;
      }
    }

    public override bool EquivalentTo(DataConnectionProperties connectionProperties)
    {
      return base.EquivalentTo(connectionProperties);
    }
  }
}