Save logout time in VB.NET on multiple login and logout in a day?

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I have saved login time correctly. But, While updating logout time all the values from previous rows also updating in logout. If given Id in where condition it not even saving

What I have tried:

Public Function logoutpage(ByVal iEmpID As Integer) As Integer
     Try
         Dim sSql As String = ""
         sSql = " UPDATE employee.tblcheck SET " &
                  " OutTime='" & DateTime.Now.ToString("hh:mm:ss") & "'"
         Dim ireturn As Integer = execute(sSql)
     Catch ex As Exception
     End Try
 End Function

Private Sub btnlogout_Click(sender As Object, e As EventArgs) Handles btnlogout.Click
       Dim objlogout As New Attendance
       Dim iresult As Integer = objlogout.logoutpage(0)
       Response.Redirect("LoginPage.aspx")
   End Sub

Posted 16-Mar-17 1:44am

Member 13040174

Updated 16-Mar-17 2:29am

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Comments

CHill60 16-Mar-17 7:54am

You have to use the employee id otherwise you will logout everyone!
Never use concatenated strings for your sql - use SqlParameter instead

2 solutions

Solution 2

Ummm...there's a problem with your design. What if the power fails or the PC crashes and there is no logout?? You really can't track it this way. Your database design only allows for tracking the last login and logout times. You have no historical record.

This isn't a code problem. This is a large design problem where you don't have a set of business rules that makes any sense.

Posted 16-Mar-17 2:29am

Dave Kreskowiak

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F-ES Sitecore · Accepted Answer · 2017-03-16T02:02:00

Public Function logoutpage(ByVal iEmpID As Integer) As Integer
        Try
            Dim sSql As String = ""
            sSql = " UPDATE employee.tblcheck SET " &
                     " OutTime='" & DateTime.Now.ToString("hh:mm:ss") & "'"
                     & " WHERE employee.tblcheck.EmployeeId = " & iEmpID.ToString
            Dim ireturn As Integer = execute(sSql)
        Catch ex As Exception
        End Try
    End Function

You'll need to substitute your actual employee id field in the WHERE clause.