-1
Try
con.Open()
comm.Connection = con
comm.CommandText = "insert into [adminanduser] (username,firstname,lastname,email,password,usertype) values ('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "','" & TextBox4.Text & "','" & TextBox5.Text & "','" & Label6.Text & "')"
comm.ExecuteNonQuery()
Response.Write("Data Successfully Saved")
con.Close()
Catch
Finally
End Try
您的代码是广泛开放的SQL注入攻击如[这个答案](http://stackoverflow.com/a/35646276/1070452)昨天你的问题。尝试添加一个名为D'Artagnan的用户,你会看到另一个原因。 – Plutonix