public bool InsertOneItem(ValueType item)
{
Connectors info = (Connectors)item;
string strSql = "insert into connectors (name,length,desc,needShow) values (@name,@length,@desc,@needShow)";
List <SQLiteParameter> paraList = new List <SQLiteParameter>();
paraList.Add(SQLiteHelper.CreateParameter("@name", DbType.String, info.Name));
paraList.Add(SQLiteHelper.CreateParameter("@length", DbType.Single, info.Length));
paraList.Add(SQLiteHelper.CreateParameter("@desc", DbType.String, info.Description));
paraList.Add(SQLiteHelper.CreateParameter("@needShow", DbType.Boolean, info.IsShowInList));
SQLiteCommand command = SQLiteHelper.CreateCommand(this.STR_CONNECTION, strSql, paraList.ToArray());
return(SQLiteHelper.ExecuteNonQuery(command) > 0);
}