using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SQLite;
using System.Data;
namespace SQLiteTest
{
public class SQLiteHelper : IDisposable
{
private SQLiteConnection connection;
private SQLiteCommand SqliteCommand;
private string connectionString;
public SQLiteCommand command { get { return SqliteCommand; } }
public SQLiteHelper() { }
public SQLiteHelper(string AconnectionString)
{
connectionString = AconnectionString;
}
#region Open/Close
public void Open()
{
try
{
connection = new SQLiteConnection(connectionString);
SqliteCommand = connection.CreateCommand();
SqliteCommand.Connection = connection;
SqliteCommand.CommandType = CommandType.Text;
connection.Open();
}
catch (DataException e)
{
Console.WriteLine(e.Message);
}
}
public void Close()
{
connection.Close();
connection.Dispose();
}
public void Dispose()
{
connection.Close();
connection.Dispose();
SqliteCommand.Dispose();
}
#endregion
#region Operatons
public SQLiteDataReader ExecuteReader(string ASql)
{
SqliteCommand.CommandText = ASql;
SQLiteDataReader reader = null;
try
{
reader = SqliteCommand.ExecuteReader();
}
catch (DataException e)
{
Console.WriteLine(e.Message);
}
return reader;
}
public DataSet ExecuteDataSet(string ASql)
{
SqliteCommand.CommandText = ASql;
SQLiteDataAdapter adapter = new SQLiteDataAdapter(SqliteCommand);
DataSet ds = new DataSet(); ;
try
{
adapter.Fill(ds);
}
catch (DataException e)
{
Console.WriteLine(e.Message);
}
return ds;
}
public DataTable ExecuteDataTable(string ASql)
{
SqliteCommand.CommandText = ASql;
SQLiteDataAdapter adapter = new SQLiteDataAdapter(SqliteCommand);
DataTable dt = new DataTable(); ;
try
{
adapter.Fill(dt);
}
catch (DataException e)
{
Console.WriteLine(e.Message);
}
return dt;
}
public int ExecuteNonQuery(string ASql)
{
SqliteCommand.CommandText = ASql;
int result = -1;
try
{
result = SqliteCommand.ExecuteNonQuery();
}
catch (DataException e)
{
Console.WriteLine(e.Message);
}
return result;
}
public object ExecuteScalar(string ASql)
{
SqliteCommand.CommandText = ASql;
object o = null;
try
{
o = SqliteCommand.ExecuteScalar();
}
catch (DataException e)
{
Console.WriteLine(e.Message);
}
return o;
}
#endregion
#region Transaction
public void BeginTransaction()
{
SqliteCommand.Transaction = connection.BeginTransaction();
}
public void CommitTransaction()
{
SqliteCommand.Transaction.Commit();
}
public void RollbackTransaction()
{
SqliteCommand.Transaction.Rollback();
}
#endregion
public IDataParameter CreateParamter(string AParamName,string AValue)
{
return new System.Data.SQLite.SQLiteParameter(AParamName, AValue);
}
}
}
sqlite幫助類
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