请大家帮我一下。我是小菜
// 创建数据连接
OleDbConnection myConnection = new OleDbConnection(myConnectionString);
myConnection.Open();
//创建数据适配器
OleDbDataAdapter adptContactMgmt = new OleDbDataAdapter("select * from aaaa",myConnection);
//创建数据集
DataSet dsContacts = new DataSet();
//设置选择命令
adptContactMgmt.SelectCommand.CommandText = "select * from aaaa";
//自动创建insert语句
OleDbCommandBuilder cmdContactMgmt = new OleDbCommandBuilder(adptContactMgmt);
//创建新行
DataRow rowInsert = dsContacts.Tables["aaaa"].NewRow();
//将数据添加到行中的字段内
rowInsert["UserName"] = "test";
rowInsert["Password"] = "test";
//将该行添加到数据集中
dsContacts.Tables["aaaa"].Rows.Add(rowInsert);
//更新数据库
adptContactMgmt.Update(dsContacts.Tables["aaaa"]);
myConnection.Close();
错误是这样的。谢谢!:)