/// <summary>
/// 连接数据库
/// </summary>
/// <param name="connectionstring"></param>
/// <remarks>连接同时将启动所有异步线程</remarks>
public void Connect(string connectionstring = null)
{
if (connectionstring != null)
{
_ConnectionString = connectionstring;
}
if (Status == DataBaseStatus.Stoped)
{
//MessageBox.Show("数据库已停止");
return;
}
if (Status == DataBaseStatus.Started)
{
//MessageBox.Show( "已经连接" );
return;
}
Status = DataBaseStatus.Started;
if (_ConnectionString == null)
{
//MessageBox.Show( "数据库未指定连接字符串" );
return;
}
_Provider.Connect(_ConnectionString);
_Provider.Connect(_ConnectionString);
}
internal DatabaseManager(String path = null, String databaseName = null)
{
String dbpath;
if (databaseName == null)
{
dbpath = Path.Combine(path, DEFAULT_DATABASE_NAME);
}
else
dbpath = Path.Combine(path, databaseName);
// check file existence
if (!File.Exists(dbpath))
{
// if not exist, then we create a new one
SQLiteConnection.CreateFile(dbpath);
_dbStatus = DataBaseStatus.NewDatabase;
}
else
{
_dbStatus = DataBaseStatus.DatabaseOK;
}
m_dbConnection = new SQLiteConnection();
string connectionString = string.Format("Data Source={0};Version=3;MultipleActiveResultSets=true;", dbpath);
m_dbConnection.ConnectionString = connectionString;
if (_dbStatus == DataBaseStatus.NewDatabase)
{
InitDatabase();
}
}
internal DatabaseManager(String path = null, String databaseName = null)
{
String dbpath;
if (databaseName == null)
{
dbpath = Path.Combine(path, DEFAULT_DATABASE_NAME);
}
else
{
dbpath = Path.Combine(path, databaseName);
}
// check file existence
if (!File.Exists(dbpath))
{
// if not exist, then we create a new one
SQLiteConnection.CreateFile(dbpath);
_dbStatus = DataBaseStatus.NewDatabase;
}
else
{
_dbStatus = DataBaseStatus.DatabaseOK;
}
m_dbConnection = new SQLiteConnection();
string connectionString = string.Format("Data Source={0};Version=3;MultipleActiveResultSets=true;", dbpath);
m_dbConnection.ConnectionString = connectionString;
if (_dbStatus == DataBaseStatus.NewDatabase)
{
InitDatabase();
}
}
