小编jil*_*ill的帖子

我是一个新手,想要一些关于C#编程的建议

我想将文本框中的值存储到数据库中.到目前为止,我有以下内容:

string connectionString = @"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Customers.mdf;Integrated Security=True;User Instance=True";
SqlConnection connection = new SqlConnection(connectionString);
connection.Open();

string query = "INSERT INTO ProjectList (ProjectName, BiddingDueDate, Status, ProjectStartDate, ProjectEndDate, AssignedTo, PointsWorth, StaffCredits) VALUES ('"+projName+"', '"+bidDueDate+"', '"+status+"', '"+projectStartDate+"', '"+projectEndDate+"', '"+assignedTo+"', '"+pointsWorth+"', '"+aStaffCredits+"')";
SqlCommand command = new SqlCommand(query, connection);

command.ExecuteNonQuery();
connection.Close();

代码中没有错误,但我似乎无法弄清楚为什么数据库中没有存储任何内容.