C#基于基于SQLiteHelper类似类似SqlHelper类实现存取类实现存取Sqlite数据库数据库
的方法的方法
本文实例讲述了C#基于SQLiteHelper类似SqlHelper类实现存取Sqlite数据库的方法。分享给大家供大家参考。具体如下：
这个类不是我实现的，英文原文地址为http://www.eggheadcafe.com/articles/20050315.asp，这里修改了原文中分析sql语句
参数的方法，将方法名修改为AttachParameters，将其修饰符修改为private，并直接传递command到这个方法，直接绑定参
数到comand。修改后的代码如下
using System;
using System.Data;
using System.Text.RegularExpressions;
using System.Xml;
using System.IO;
using System.Collections;
using System.Data.SQLite;
namespace DBUtility.SQLite
{
/// <summary>
/// SQLiteHelper is a utility class similar to "SQLHelper" in MS
/// Data Access Application Block and follows similar pattern.
/// </summary>
public class SQLiteHelper
{
/// <summary>
/// Creates a new <see cref="SQLiteHelper"/> instance. The ctor is marked private since all members are static.
/// </summary>
private SQLiteHelper()
{
}
/// <summary>
/// Creates the command.
/// </summary>
/// <param name="connection">Connection.</param>
/// <param name="commandText">Command text.</param>
/// <param name="commandParameters">Command parameters.</param>
/// <returns>SQLite Command</returns>
public static SQLiteCommand CreateCommand(SQLiteConnection connection, string commandText, params SQLiteParameter[] commandParameters)
{
SQLiteCommand cmd = new SQLiteCommand(commandText, connection);
if (commandParameters.Length > 0)
{
foreach (SQLiteParameter parm in commandParameters)
cmd.Parameters.Add(parm);
}
return cmd;
}
/// <summary>
/// Creates the command.
/// </summary>
/// <param name="connectionString">Connection string.</param>
/// <param name="commandText">Command text.</param>
/// <param name="commandParameters">Command parameters.</param>
/// <returns>SQLite Command</returns>
public static SQLiteCommand CreateCommand(string connectionString, string commandText, params SQLiteParameter[] commandParameters)
{
SQLiteConnection cn = new SQLiteConnection(connectionString);
SQLiteCommand cmd = new SQLiteCommand(commandText, cn);
if (commandParameters.Length > 0)
{
foreach (SQLiteParameter parm in commandParameters)
cmd.Parameters.Add(parm);
}
return cmd;
}
/// <summary>
/// Creates the parameter.
/// </summary>
/// <param name="parameterName">Name of the parameter.</param>
/// <param name="parameterType">Parameter type.</param>
/// <param name="parameterValue">Parameter value.</param>
/// <returns>SQLiteParameter</returns>
public static SQLiteParameter CreateParameter(string parameterName, System.Data.DbType parameterType, object parameterValue)
{
SQLiteParameter parameter = new SQLiteParameter();
parameter.DbType = parameterType;
parameter.ParameterName = parameterName;
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