时间:2022-11-18 10:10:43 | 栏目:.NET代码 | 点击:次
本文实例讲述了C#处理Access中事务的方法。分享给大家供大家参考。具体如下:
Access不能像SQL server一样直接执行多条语句,但是把多条语句绑成事务还是可以一起执行的. 所谓事务,就是把多件事情当做一件事情来处理。也就是大家同在一条船上! 由一个事务来完成多个表的同步操作,要么都执行成功,要么都不成功.下面举个例子,用C#实现Access数据库事务的处理方法: 向一个表提交数据,同时更新另一个表中的数据
using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.OleDb; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { string id = ""; string strCon = System.Configuration.ConfigurationManager.AppSettings["ConnectStr"].ToString(); OleDbConnection con = new OleDbConnection(strCon); OleDbDataAdapter adp = new OleDbDataAdapter(); OleDbDataAdapter adp1 = new OleDbDataAdapter(); try { con.Open(); OleDbTransaction tra = con.BeginTransaction(); //创建事务,开始执行事务 adp = new OleDbDataAdapter("select * from 序号表", con); adp.SelectCommand.Transaction = tra; adp1=new OleDbDataAdapter("select * from 节目表", con); adp1.SelectCommand.Transaction = tra; OleDbCommandBuilder thisBuilder = new OleDbCommandBuilder(adp); OleDbCommandBuilder thisBuilder1 = new OleDbCommandBuilder(adp1); DataSet ds = new DataSet(); adp.Fill(ds,"aa");//添加数据集 id = ds.Tables["aa"].Rows[0][1].ToString(); Int64 s = 0; s = Convert.ToInt64(id) + 1; id = s.ToString("0000000#"); ds.Tables["aa"].Rows[0][1] = id; adp.Update(ds,"aa");//执行修改一个表的事务 adp1.Fill(ds,"bb"); DataRow dr=ds.Tables["bb"].NewRow(); dr["ProID"]=id; dr["ProName"]="ProName"; dr["ProTime"]="2"; dr["ProIsFinish"]="3"; dr["ProBgColor"]="4"; dr["ProBgPic"]="5"; dr["ProStyle"]="6"; dr["MissionName"]="7"; dr["ProDescription"]="8"; ds.Tables["bb"].Rows.Add(dr); adp1.Update(ds,"bb"); tra.Commit();//关闭事务 } catch (Exception ex) { } finally { con.Close(); } }
注:Access的事务不支持自动锁定(经试验已经证实),因此Access最好用于本机的程序,b/s中做好不要用,除非你不用事务处理~~!
希望本文所述对大家的C#程序设计有所帮助。