【 tulaoshi.com - ASP.NET 】
想用DataAdapter 把DataSet中的数据更新到数据库 可是死活也更新新不进去,只在DataSet中更新了,数据库里一点也没变 不知道为什么,以下是代码,望高手指点,感激不尽。
string sql = "SELECT Title, Author, Type, Content, PDate FROM Article;"; SqlConnection conn = new SqlConnection(); conn.ConnectionString ="Data Source = (local); database = Finance; Integrated Security = SSPI;"; SqlCommand myCom = conn.CreateCommand(); myCom.CommandText = sql; SqlDataAdapter myAda = new SqlDataAdapter(myCom); myAda.InsertCommand = myCom; DataSet ds = new DataSet(); conn.Open(); myAda.Fill(ds,"test"); DataRow newRow = ds.Tables["test"].NewRow(); newRow["Title"] = "title2"; newRow["Author"] = "mstc"; newRow["Type"] = "type2"; newRow["Content"] = "Content2"; newRow["PDate"] = "Today"; ds.Tables["test"].Rows.Add(newRow); try { myAda.Update(ds,"test"); } catch(Exception ex) { this.Response.Write(ex.Message); } this.DataGrid1.DataSource = ds.Tables["test"].DefaultView; this.DataGrid1.DataBind();
以上代码数据库连接绝对没有问题,运行中也没有抛出异常,DataSet中的增加了新行,可是教用UpDate
方法后 ,数据库里并没有改变,不知道为什么