How to pass datagrid record number instead of clicking

I got a datagrid that supposed to edit the datagrid once the user clicks on edit button next to each record. I want this page recives the record number as passed value but i do not know how to do it .(datagridupdate?record=4)
Is there a way to pass record value to this part of code which is resposible for finding the record that we want to update ? I be happy to get some help here. thanks

Code:

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    Sub DBEditDataGrid_Edit(Sender As Object, E As DataGridCommandEventArgs)
        DBEditDataGrid.EditItemIndex = E.Item.ItemIndex
        DataBindGrid
    End Sub

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Code:

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<%@ Page Language="VB" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>

<script language="VB" runat="server">
        Dim objConnection As SqlConnection
        Dim myDataReader As SqlDataReader       

    Sub Page_Load(Sender As Object, E As EventArgs)
                ' Set up our connection.
                objConnection = New SqlConnection("Data Source=(local);" _
                        & "Initial Catalog=teniss2;User Id=web;Password=web;" _
                        & "Connect Timeout=15;Network Library=dbmssocn;")

                LoadDataFromDB

                If Not IsPostBack Then
                        DataBindGrid
                End If
    End Sub

        Sub LoadDataFromDB()
                Dim objCommand As SqlCommand

                ' Create new command object passing it our SQL query
                ' and telling it which connection to use.
                objCommand = New SqlCommand("SELECT * FROM Players;", objConnection)

                ' Open the connection, execute the command, and close the connection.
                objConnection.Open()
                myDataReader = objCommand.ExecuteReader(System.Data.CommandBehavior.CloseConnection)
        End Sub

    Sub DataBindGrid()
        DBEditDataGrid.DataSource = myDataReader
        DBEditDataGrid.DataBind
    End Sub

    Sub DBEditDataGrid_Edit(Sender As Object, E As DataGridCommandEventArgs)
        DBEditDataGrid.EditItemIndex = E.Item.ItemIndex
        DataBindGrid
    End Sub

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