【文件属性】：
文件名称：SQLite ADO.NET 2.03.5 +示例源码
文件大小：5.38MB
文件格式：RAR
更新时间：2012-10-03 06:19:49
SQLite
using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Configuration;
using System.Data;
using System.Data.SQLite;
namespace DAL
{
public class Sqlite
{
///
/// 获得连接对象
///
///
public static SQLiteConnection GetSQLiteConnection()
{
return new SQLiteConnection("Data Source=" + System.Web.HttpContext.Current.Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["db"].ToString()));
}
private static void PrepareCommand(SQLiteCommand cmd, SQLiteConnection conn, string cmdText, params object[] 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);
//for (int i = 0; i < p.Length; i++)
// cmd.Parameters[i].Value = p[i];
}
}
public static DataSet ExecuteDataset(string cmdText, params object[] p)
{
DataSet ds = new DataSet();
SQLiteCommand command = new SQLiteCommand();
using (SQLiteConnection connection = GetSQLiteConnection())
{
PrepareCommand(command, connection, cmdText, p);
SQLiteDataAdapter da = new SQLiteDataAdapter(command);
da.Fill(ds);
}
return ds;
}
public static DataRow ExecuteDataRow(string cmdText, params object[] p)
{
DataSet ds = ExecuteDataset(cmdText, p);
if (ds != null && ds.Tables.Count > 0 && ds.Tables[0].Rows.Count > 0)
return ds.Tables[0].Rows[0];
return null;
}
///
/// 返回受影响的行数
///
///
a
///
传入的参数
///
public static int ExecuteNonQuery(string cmdText, params object[] p)
{
SQLiteCommand command = new SQLiteCommand();
using (SQLiteConnection connection = GetSQLiteConnection())
{
PrepareCommand(command, connection, cmdText, p);
return command.ExecuteNonQuery();
}
}
///
/// 返回SqlDataReader对象
///
///
///
传入的参数
///
public static SQLiteDataReader ExecuteReader(string cmdText, params object[] p)
{
SQLiteCommand command = new SQLiteCommand();
SQLiteConnection connection = GetSQLiteConnection();
try
{
PrepareCommand(command, connection, cmdText, p);
SQLiteDataReader reader = command.ExecuteReader(CommandBehavior.CloseConnection);
return reader;
}
catch
{
connection.Close();
throw;
}
}
///
/// 返回结果集中的第一行第一列，忽略其他行或列
///
///
///
传入的参数
///
public static object ExecuteScalar(string cmdText, params object[] p)
{
SQLiteCommand cmd = new SQLiteCommand();
using (SQLiteConnection connection = GetSQLiteConnection())
{
PrepareCommand(cmd, connection, cmdText, p);
return cmd.ExecuteScalar();
}
}
///
/// 分页
///
///
///
///
///
///
///
///
public static DataSet ExecutePager(ref int recordCount, int pageIndex, int pageSize, string cmdText, string countText, params object[] p)
{
if (recordCount < 0)
recordCount = int.Parse(ExecuteScalar(countText, p).ToString());
DataSet ds = new DataSet();
SQLiteCommand command = new SQLiteCommand();
using (SQLiteConnection connection = GetSQLiteConnection())
{
PrepareCommand(command, connection, cmdText, p);
SQLiteDataAdapter da = new SQLiteDataAdapter(command);
da.Fill(ds, (pageIndex - 1) * pageSize, pageSize, "result");
}
return ds;
}
}
}
【文件预览】：
SQLite-1.0.65.0-source.zip
SQLite-1.0.65.0-setup.exe
