/// <summary> /// 更新一条数据 /// </summary> public bool Update(DogApi.Model.FriendModel model) { StringBuilder strSql = new StringBuilder(); strSql.Append("update friend set "); strSql.Append("username=@username,"); strSql.Append("fusername=@fusername"); strSql.Append(" where fid=@fid "); SQLiteParameter[] parameters = { new SQLiteParameter("@username", DbType.String, 50), new SQLiteParameter("@fusername", DbType.String, 50), new SQLiteParameter("@fid", DbType.Int32, 4) }; parameters[0].Value = model.username; parameters[1].Value = model.fusername; parameters[2].Value = model.fid; int rows = DbHelperSQLite.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 增加一条数据 /// </summary> public bool Add(DogApi.Model.FriendModel model) { StringBuilder strSql = new StringBuilder(); strSql.Append("insert into friend("); strSql.Append("fid,username,fusername)"); strSql.Append(" values ("); strSql.Append("@fid,@username,@fusername)"); SQLiteParameter[] parameters = { new SQLiteParameter("@fid", DbType.Int32, 4), new SQLiteParameter("@username", DbType.String, 50), new SQLiteParameter("@fusername", DbType.String, 50) }; parameters[0].Value = model.fid; parameters[1].Value = model.username; parameters[2].Value = model.fusername; int rows = DbHelperSQLite.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 得到一个对象实体 /// </summary> public DogApi.Model.FriendModel DataRowToModel(DataRow row) { DogApi.Model.FriendModel model = new DogApi.Model.FriendModel(); if (row != null) { if (row["fid"] != null && row["fid"].ToString() != "") { model.fid = int.Parse(row["fid"].ToString()); } if (row["username"] != null) { model.username = row["username"].ToString(); } if (row["fusername"] != null) { model.fusername = row["fusername"].ToString(); } } return(model); }
/// <summary> /// 得到一个对象实体 /// </summary> public DogApi.Model.FriendModel GetModel(int fid) { StringBuilder strSql = new StringBuilder(); strSql.Append("select fid,username,fusername from friend "); strSql.Append(" where fid=@fid "); SQLiteParameter[] parameters = { new SQLiteParameter("@fid", DbType.Int32, 4) }; parameters[0].Value = fid; DogApi.Model.FriendModel model = new DogApi.Model.FriendModel(); DataSet ds = DbHelperSQLite.Query(strSql.ToString(), parameters); if (ds.Tables[0].Rows.Count > 0) { return(DataRowToModel(ds.Tables[0].Rows[0])); } else { return(null); } }