Question

vs2010访问数据库，返回值为null？代码错哪里了？如题 谢谢了

string strConnection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|note.accdb;"; OleDbConnection objConnection = new OleDbConnection(strConnection); objConnection.Open(); OleDbCommand dc = new OleDbCommand("SELECT * FROM note11 ", objConnection); content1.Value = dc.ExecuteScalar().ToString(); objConnection.Close();

Answer 1

你使用VS自带的调试工具看看。。