在连接到 Oracle 数据库的 VB.Net 的登录表单中。有没有办法插入 If 语句以将不同的用户引导到不同的表单。例如,会计主页的会计或驱动程序主页的驱动程序尽管所有 ID 和密码都在数据库中的一个表中。
数据库中有一个 POSITION 字段,我想用它来区分不同用户的访问级别。
这是到目前为止工作的代码:
Dim conn As New OleDb.OleDbConnection
conn.ConnectionString = _
"Provider=msdaora;Data Source=orabis;User Id=112221800;Password=112221800;"
conn.Open()
Dim parmuser As New OleDb.OleDbParameter
parmuser.OleDbType = OleDb.OleDbType.Char
parmuser.Value = txtStaffNo.Text
Dim parmpass As New OleDb.OleDbParameter
parmpass.OleDbType = OleDb.OleDbType.Char
parmpass.Value = txtPassword.Text
Dim cmd As New OleDbCommand
cmd.Connection = conn
cmd = New OleDbCommand("select STAFFID,PASSWORD from STAFF where STAFFID ='" & txtStaffNo.Text & "' and PASSWORD ='" & txtPassword.Text & "'", conn)
cmd.CommandType = CommandType.Text
Dim dr As OleDb.OleDbDataReader
dr = cmd.ExecuteReader()
If txtStaffNo.Text = "" Or txtPassword.Text = "" Then
MessageBox.Show("You have not entered any values!", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error)
ElseIf dr.Read() Then
txtStaffNo.Text = dr("STAFFID")
txtPassword.Text = dr("PASSWORD")
MsgBox("Access Allowed")
CustOption.Show()
Me.Hide()
Else
'MessageBox.Show("Wrong Username and Password", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
'intCount = intCount + 1
End If