/// <summary> /// 增加一条数据 /// </summary> public int Add(CSLG.CTalk.Model.messsageInfo model) { StringBuilder strSql = new StringBuilder(); strSql.Append("insert into messsageInfo("); strSql.Append("senderID,receiverID,messageContent,sendTime,messageState)"); strSql.Append(" values ("); strSql.Append("@senderID,@receiverID,@messageContent,@sendTime,@messageState)"); strSql.Append(";select @@IDENTITY"); SqlParameter[] parameters = { new SqlParameter("@senderID", SqlDbType.Int, 4), new SqlParameter("@receiverID", SqlDbType.Int, 4), new SqlParameter("@messageContent", SqlDbType.NVarChar, 500), new SqlParameter("@sendTime", SqlDbType.SmallDateTime), new SqlParameter("@messageState", SqlDbType.Int, 8) }; parameters[0].Value = model.senderID; parameters[1].Value = model.receiverID; parameters[2].Value = model.messageContent; parameters[3].Value = model.sendTime; parameters[4].Value = model.messageState; object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters); if (obj == null) { return(0); } else { return(Convert.ToInt32(obj)); } }
/// <summary> /// 得到一个对象实体 /// </summary> public CSLG.CTalk.Model.messsageInfo GetModel(int messageID) { StringBuilder strSql = new StringBuilder(); strSql.Append("select top 1 messageID,senderID,receiverID,messageContent,sendTime,messageState from messsageInfo "); strSql.Append(" where messageID=@messageID"); SqlParameter[] parameters = { new SqlParameter("@messageID", SqlDbType.Int, 4) }; parameters[0].Value = messageID; CSLG.CTalk.Model.messsageInfo model = new CSLG.CTalk.Model.messsageInfo(); DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters); if (ds.Tables[0].Rows.Count > 0) { if (ds.Tables[0].Rows[0]["messageID"] != null && ds.Tables[0].Rows[0]["messageID"].ToString() != "") { model.messageID = int.Parse(ds.Tables[0].Rows[0]["messageID"].ToString()); } if (ds.Tables[0].Rows[0]["senderID"] != null && ds.Tables[0].Rows[0]["senderID"].ToString() != "") { model.senderID = int.Parse(ds.Tables[0].Rows[0]["senderID"].ToString()); } if (ds.Tables[0].Rows[0]["receiverID"] != null && ds.Tables[0].Rows[0]["receiverID"].ToString() != "") { model.receiverID = int.Parse(ds.Tables[0].Rows[0]["receiverID"].ToString()); } if (ds.Tables[0].Rows[0]["messageContent"] != null && ds.Tables[0].Rows[0]["messageContent"].ToString() != "") { model.messageContent = ds.Tables[0].Rows[0]["messageContent"].ToString(); } if (ds.Tables[0].Rows[0]["sendTime"] != null && ds.Tables[0].Rows[0]["sendTime"].ToString() != "") { model.sendTime = DateTime.Parse(ds.Tables[0].Rows[0]["sendTime"].ToString()); } if (ds.Tables[0].Rows[0]["messageState"] != null && ds.Tables[0].Rows[0]["messageState"].ToString() != "") { model.messageState = int.Parse(ds.Tables[0].Rows[0]["messageState"].ToString()); } return(model); } else { return(null); } }
/// <summary> /// 更新一条数据 /// </summary> public bool Update(CSLG.CTalk.Model.messsageInfo model) { StringBuilder strSql = new StringBuilder(); strSql.Append("update messsageInfo set "); strSql.Append("senderID=@senderID,"); strSql.Append("receiverID=@receiverID,"); strSql.Append("messageContent=@messageContent,"); strSql.Append("sendTime=@sendTime,"); strSql.Append("messageState=@messageState"); strSql.Append(" where messageID=@messageID"); SqlParameter[] parameters = { new SqlParameter("@senderID", SqlDbType.Int, 4), new SqlParameter("@receiverID", SqlDbType.Int, 4), new SqlParameter("@messageContent", SqlDbType.NVarChar, 500), new SqlParameter("@sendTime", SqlDbType.SmallDateTime), new SqlParameter("@messageState", SqlDbType.Int, 8), new SqlParameter("@messageID", SqlDbType.Int, 4) }; parameters[0].Value = model.senderID; parameters[1].Value = model.receiverID; parameters[2].Value = model.messageContent; parameters[3].Value = model.sendTime; parameters[4].Value = model.messageState; parameters[5].Value = model.messageID; int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }