/// <summary> /// 增加一条数据 /// </summary> public bool Add(Maticsoft.Model.file model) { StringBuilder strSql = new StringBuilder(); strSql.Append("insert into file("); strSql.Append("sFileName,iUserID,sType,sFileStream)"); strSql.Append(" values ("); strSql.Append("@sFileName,@iUserID,@sType,@sFileStream)"); OleDbParameter[] parameters = { new OleDbParameter("@sFileName", OleDbType.VarChar, 255), new OleDbParameter("@iUserID", OleDbType.Integer, 4), new OleDbParameter("@sType", OleDbType.VarChar, 255), new OleDbParameter("@sFileStream", OleDbType.Binary, 0) }; parameters[0].Value = model.sFileName; parameters[1].Value = model.iUserID; parameters[2].Value = model.sType; parameters[3].Value = model.sFileStream; int rows = DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 得到一个对象实体 /// </summary> public Maticsoft.Model.file DataRowToModel(DataRow row) { Maticsoft.Model.file model = new Maticsoft.Model.file(); if (row != null) { if (row["ID"] != null && row["ID"].ToString() != "") { model.ID = int.Parse(row["ID"].ToString()); } if (row["sFileName"] != null) { model.sFileName = row["sFileName"].ToString(); } if (row["iUserID"] != null && row["iUserID"].ToString() != "") { model.iUserID = int.Parse(row["iUserID"].ToString()); } if (row["sType"] != null) { model.sType = row["sType"].ToString(); } if (row["sFileStream"] != null && row["sFileStream"].ToString() != "") { model.sFileStream = (byte[])row["sFileStream"]; } } return(model); }
/// <summary> /// 更新一条数据 /// </summary> public bool Update(Maticsoft.Model.file model) { StringBuilder strSql = new StringBuilder(); strSql.Append("update file set "); strSql.Append("sFileName=@sFileName,"); strSql.Append("iUserID=@iUserID,"); strSql.Append("sType=@sType,"); strSql.Append("sFileStream=@sFileStream"); strSql.Append(" where ID=@ID"); OleDbParameter[] parameters = { new OleDbParameter("@sFileName", OleDbType.VarChar, 255), new OleDbParameter("@iUserID", OleDbType.Integer, 4), new OleDbParameter("@sType", OleDbType.VarChar, 255), new OleDbParameter("@sFileStream", OleDbType.Binary, 0), new OleDbParameter("@ID", OleDbType.Integer, 4) }; parameters[0].Value = model.sFileName; parameters[1].Value = model.iUserID; parameters[2].Value = model.sType; parameters[3].Value = model.sFileStream; parameters[4].Value = model.ID; int rows = DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 得到一个对象实体 /// </summary> public Maticsoft.Model.file GetModel(int ID) { StringBuilder strSql = new StringBuilder(); strSql.Append("select ID,sFileName,iUserID,sType,sFileStream from file "); strSql.Append(" where ID=@ID"); OleDbParameter[] parameters = { new OleDbParameter("@ID", OleDbType.Integer, 4) }; parameters[0].Value = ID; Maticsoft.Model.file model = new Maticsoft.Model.file(); DataSet ds = DbHelperOleDb.Query(strSql.ToString(), parameters); if (ds.Tables[0].Rows.Count > 0) { return(DataRowToModel(ds.Tables[0].Rows[0])); } else { return(null); } }