public class SQLiteHelper
{
// public static String ConnectionString = "Data Source = H: /SQLite/DB/minWeiGanBu.db; Pooling = true; FailIfMissing = false";
// public static String ConnectionString = "Data Source = H: /SQLite/DB/aid/minWeiGanBu.db; Pooling = true; FailIfMissing = false";
static string ConnectionString = ConfigurationManager.ConnectionStrings ["ConnStr"]. ConnectionString.ToString (). Replace ("| path |", Tools.binPath + @ "\ DB");
private static void PrepareCommand (SQLiteCommand cmd, SQLiteConnection conn, string cmdText, params SQLiteParameter [] p)
{
if (conn.State! = ConnectionState.Open)
conn.Open ();
cmd.Parameters.Clear ();
cmd.Connection = conn;
cmd.CommandText = cmdText;
cmd.CommandType = CommandType.Text;
cmd.CommandTimeout = 30;
if (p! = null)
{
foreach (object parm in p)
//cmd.Parameters.AddWithValue(string.Empty, parm);
cmd.Parameters.Add (parm);
}
}
public static DataSet ExecuteQuery (string cmdText, params SQLiteParameter [] p)
{
using (SQLiteConnection conn = new SQLiteConnection (ConnectionString))
{
using (SQLiteCommand command = new SQLiteCommand ())
{
DataSet ds = new DataSet ();
PrepareCommand (command, conn, cmdText, p);
SQLiteDataAdapter da = new SQLiteDataAdapter (command);
da.Fill (ds);
return ds;
}
}
}
public static int ExecuteNonQuery (string cmdText, params SQLiteParameter [] p)
{
using (SQLiteConnection conn = new SQLiteConnection (ConnectionString))
{
using (SQLiteCommand command = new SQLiteCommand ())
{
PrepareCommand (command, conn, cmdText, p);
return command.ExecuteNonQuery ();
}
}
}
public static SQLiteDataReader ExecuteReader (string cmdText, params SQLiteParameter [] p)
{
// using (SQLiteConnection conn = new SQLiteConnection (ConnectionString))
// {
SQLiteConnection conn = new SQLiteConnection (ConnectionString);
using (SQLiteCommand command = new SQLiteCommand ())
{
PrepareCommand (command, conn, cmdText, p);
return command.ExecuteReader (CommandBehavior.CloseConnection);
}
//}
}
public static object ExecuteScalar (string cmdText, params SQLiteParameter [] p)
{
using (SQLiteConnection conn = new SQLiteConnection (ConnectionString))
{
using (SQLiteCommand command = new SQLiteCommand ())
{
PrepareCommand (command, conn, cmdText, p);
return command.ExecuteScalar ();
}
}
}
}
Use helper of sqlite database
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Original address: http://www.cnblogs.com/wygm/p/5668166.html