how to get the value of checkbox in listview?

Dim myConnection As SqlConnection = New SqlConnection(connectionString)
        myConnection.Open()
        Dim item As ListViewDataItem
        Dim checkbox1 As CheckBox = DirectCast(ListView2.FindControl("Approve"), CheckBox)
        Dim checkbox2 As CheckBox = DirectCast(ListView2.FindControl("Dissapprove"), CheckBox)
       
        For Each item In ListView2.Items
           
            If checkbox1.Checked = True Then

                Dim c As New SqlCommand("update butiran_hantar set status=@status where depoh = '" + Label4.Text + "'", myConnection)
                c.Parameters.AddWithValue("@status", checkbox1.Text)

                Try
                    c.ExecuteNonQuery()
                    myConnection.Close()
                    BindData()
                    Label1.Text = "success."
                Catch ex As Exception
                    Label1.Text = ex.Message.ToString()
                End Try



            ElseIf checkbox2.Checked = True Then
                Dim c As New SqlCommand("update butiran_hantar set status=@status where depoh = '" + Label4.Text + "'", myConnection)
                c.Parameters.AddWithValue("@status", checkbox2.Text)

                Try
                    c.ExecuteNonQuery()
                    myConnection.Close()
                    BindData()
                    Label1.Text = "success."
                Catch ex As Exception
                    Label1.Text = ex.Message.ToString()
                End Try
            End If
           

        Next