sqlite 保存DATATABLE ，DATATABLE有值，但是resule总是为0，没有其它错误
/// <summary>
/// 保存DataTable
/// </summary>
/// <param name="dt">DataTable</param>
/// <returns>影响的行数</returns>
public static int SaveDataTable(DataTable dt, string tableName)
{
SQLiteConnection _con;
SQLiteCommand command;
_con = new SQLiteConnection(connectionString);
command = _con.CreateCommand();
SQLiteTransaction _tran = null;
try
{
command.CommandText = "SELECT * FROM " + tableName;
SQLiteDataAdapter oda = new SQLiteDataAdapter(command);
SQLiteCommandBuilder ocb = new SQLiteCommandBuilder(oda);
oda.InsertCommand = ocb.GetInsertCommand();
oda.InsertCommand = ocb.GetUpdateCommand();
oda.DeleteCommand = ocb.GetDeleteCommand();
_con.Open();
_tran = _con.BeginTransaction();
command.Transaction = _tran;
int result = oda.Update(dt);
_tran.Commit();
return result;
}
catch (Exception ex)
{
_tran.Rollback();
throw new Exception("保存DataTable出错：" + ex.Message);
}
finally
{
_con.Close();
}
}
[解决办法]
datatable没有被修改过，所以它不更新
