Displaying a Image previous scanned or retrieved in Picturebox - mysql

Question

I just want some help for my project which is RFID attendance system. The RFID tag should be scan to retrieve the information and Image from the database mysql. The first student will scan his RFID tag to display his picture in picturebox1 and when another student scan the picturebox1 will be updated to a new student picture and data and the previous one is on the picturebox2 displayed The issue here is how can I display the previous Image of the student. Just only the Image ,the data is not included.
I have a 2 picturebox
Picturebox1 is for new student scanned
Picturebox2 is for the previous one or the student who scan before the new.
Thank you guys ..Any suggestions and comment will totally appreciated
Here is my code
Private Sub studtag_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles studtag.TextChanged
If studtag.TextLength = 8 Then
con = New MySqlConnection
con.ConnectionString = "server=localhost;userid=root;password=1234;database=dat"
Dim query As String
query = "select * from dat.students"
cmd = New MySqlCommand(query, con)
Dim table As New DataTable
Try
con.Open()
'Gets or sets an SQL statement or stored procedure used to select records in the database.
With cmd
.Connection = con
.CommandText = "SELECT * from students where `studtags`='" & studtag.Text & "';"
End With
da.SelectCommand = cmd
da.Fill(table)
'it gets the data from specific column and fill it into textbox
studtag.Text = table.Rows(0).Item(0)
idno.Text = table.Rows(0).Item(1)
lastxt.Text = table.Rows(0).Item(2)
firstxt.Text = table.Rows(0).Item(3)
middletxt.Text = table.Rows(0).Item(4)
dob.Text = table.Rows(0).Item(6)
crsetxt.Text = table.Rows(0).Item(10)
tagtxt.Text = studtag.Text
timein.Text = times.Text
dr = cmd.ExecuteReader()
dr.Read()
If dob.Text = datenow.Text Then
greet.Text = "Happy Birthday To You"
End If
Dim img() As Byte = CType(dr("studpic"), Byte())
Using ms As New IO.MemoryStream(img)
PictureBox1.Image = Image.FromStream(ms)
End Using
insert()
loadtable()
Catch ex As Exception
Notenrolled.Show()
Finally
con.Dispose()
con.Close()
End Try
End If
End Sub
Public Sub loadtable()
con = New MySqlConnection
con.ConnectionString = "server=localhost;userid=root;password=1234;database=dat"
Dim SDA As New MySqlDataAdapter
Dim dbDataset As New DataTable
Dim bSource As New BindingSource
Try
con.Open()
Dim query3 As String
query3 = "select studtags,idno,lastxt,firstxt,middletxt,dob,log,timein,crse from dat.studlogs"
cmd = New MySqlCommand(query3, con)
SDA.SelectCommand = cmd
SDA.Fill(dbDataset)
bSource.DataSource = dbDataset
DataGridView1.DataSource = bSource
SDA.Update(dbDataset)
DataGridView1.Sort(DataGridView1.Columns(8), System.ComponentModel.ListSortDirection.Ascending)
If dbDataset.Rows.Count > 0 Then
logins.Text = table2.Rows.Count.ToString()
End If
con.Close()
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
con.Dispose()
End Try
End Sub
Private Sub Students_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
loadtable()
''Date Now
Timer2.Start()
Try
DataGridView1.AllowUserToAddRows = False ' Disabled or hide (*) Symbol...
DataGridView1.RowHeadersVisible = False 'To hide Left indicator..
DataGridView1.DefaultCellStyle.SelectionBackColor = Color.SteelBlue 'Selection backcolor....
DataGridView1.AlternatingRowsDefaultCellStyle.BackColor = Color.LightGoldenrodYellow 'Alternating Backcolor.
DataGridView1.AllowUserToResizeRows = False 'Disabled row resize...
DataGridView1.ReadOnly = True
DataGridView1.MultiSelect = False
DataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect
DataGridView1.ShowRowErrors = False
DataGridView1.ShowCellErrors = False
table2.Columns.Add("Student Tag", Type.GetType("System.String"))
table2.Columns.Add("Student ID", Type.GetType("System.Int32"))
table2.Columns.Add("Last Name", Type.GetType("System.String"))
table2.Columns.Add("First Name", Type.GetType("System.String"))
table2.Columns.Add("Middle Name", Type.GetType("System.String"))
table2.Columns.Add("Status", Type.GetType("System.String"))
table2.Columns.Add("Birthday", Type.GetType("System.String"))
table2.Columns.Add("Time in", Type.GetType("System.String"))
table2.Columns.Add("Course/Sec", Type.GetType("System.String"))
Catch ex As Exception
End Try

Answer 1

It's quiet easy,You can use a button to display the previous image :
If datagridview1.CurrentRow.Index < datagridview1.Rows.Count Then
datagridview1.Rows(datagridview1.SelectedRows(0).Index - 1).Selected
= True
Dim pic As Byte()
pic = datagridview1.CurrentRow.Cells(1).Value
Dim ms As New MemoryStream(pic)
pbox1.BackgroundImage = Image.FromStream(ms)