/// <summary> /// 增加一条数据 /// </summary> public int Add(Mxm.Model.message model) { StringBuilder strSql = new StringBuilder(); strSql.Append("insert into message("); strSql.Append("title,content,parent_id,create_time,type_id)"); strSql.Append(" values ("); strSql.Append("@title,@content,@parent_id,@create_time,@type_id)"); strSql.Append(";select @@IDENTITY"); SqlParameter[] parameters = { new SqlParameter("@title", SqlDbType.NVarChar, 500), new SqlParameter("@content", SqlDbType.NVarChar, 0), new SqlParameter("@parent_id", SqlDbType.Int, 4), new SqlParameter("@create_time", SqlDbType.DateTime), new SqlParameter("@type_id", SqlDbType.Int, 4) }; parameters[0].Value = model.title; parameters[1].Value = model.content; parameters[2].Value = model.parent_id; parameters[3].Value = model.create_time; parameters[4].Value = model.type_id; object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters); if (obj == null) { return(-1); } else { return(Convert.ToInt32(obj)); } }
/// <summary> /// 得到一个对象实体 /// </summary> public Mxm.Model.message GetModel(int mid) { StringBuilder strSql = new StringBuilder(); strSql.Append("select mid,title,content,parent_id,create_time,type_id from message "); strSql.Append(" where mid=@mid "); SqlParameter[] parameters = { new SqlParameter("@mid", SqlDbType.Int, 4) }; parameters[0].Value = mid; Mxm.Model.message model = new Mxm.Model.message(); DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters); if (ds.Tables[0].Rows.Count > 0) { if (ds.Tables[0].Rows[0]["mid"].ToString() != "") { model.mid = int.Parse(ds.Tables[0].Rows[0]["mid"].ToString()); } model.title = ds.Tables[0].Rows[0]["title"].ToString(); model.content = ds.Tables[0].Rows[0]["content"].ToString(); if (ds.Tables[0].Rows[0]["parent_id"].ToString() != "") { model.parent_id = int.Parse(ds.Tables[0].Rows[0]["parent_id"].ToString()); } if (ds.Tables[0].Rows[0]["create_time"].ToString() != "") { model.create_time = DateTime.Parse(ds.Tables[0].Rows[0]["create_time"].ToString()); } if (ds.Tables[0].Rows[0]["type_id"].ToString() != "") { model.type_id = int.Parse(ds.Tables[0].Rows[0]["type_id"].ToString()); } return(model); } else { return(null); } }
/// <summary> /// �õ�һ������ʵ�� /// </summary> public Mxm.Model.message GetModel(int mid) { StringBuilder strSql=new StringBuilder(); strSql.Append("select mid,title,content,parent_id,create_time,type_id from message "); strSql.Append(" where mid=@mid "); SqlParameter[] parameters = { new SqlParameter("@mid", SqlDbType.Int,4)}; parameters[0].Value = mid; Mxm.Model.message model=new Mxm.Model.message(); DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters); if(ds.Tables[0].Rows.Count>0) { if(ds.Tables[0].Rows[0]["mid"].ToString()!="") { model.mid=int.Parse(ds.Tables[0].Rows[0]["mid"].ToString()); } model.title=ds.Tables[0].Rows[0]["title"].ToString(); model.content=ds.Tables[0].Rows[0]["content"].ToString(); if(ds.Tables[0].Rows[0]["parent_id"].ToString()!="") { model.parent_id=int.Parse(ds.Tables[0].Rows[0]["parent_id"].ToString()); } if(ds.Tables[0].Rows[0]["create_time"].ToString()!="") { model.create_time=DateTime.Parse(ds.Tables[0].Rows[0]["create_time"].ToString()); } if (ds.Tables[0].Rows[0]["type_id"].ToString() != "") { model.type_id = int.Parse(ds.Tables[0].Rows[0]["type_id"].ToString()); } return model; } else { return null; } }