Can i check time slot using select case statement in vb.net

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I want to check the current time with the half an hour time slots (total of 48 starts from 00:00,00:30,01:00,....23:30). Is it possible using select case statement. If not any other suggestions please?

I am storing the current time in an object. now i need to do conditional check on this variable.

Dim datime As DateTime = DateTime.Now.ToString("t")

Posted 4-Jul-11 7:03am

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[no name] 4-Jul-11 13:21pm

Do you want to do something different each half hour?

Member 8001800 4-Jul-11 13:34pm

Into whichever the time slot the current time goes, I need to write a value under corresponding time slot

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Christian Graus · Answer 1 · 2011-07-04T11:13:00

The problem is, you don't want, and can't count on, an exact time. You're better off with

if (datime.TotalMinutes <= 30)
{
}
else if (datime.TotalMinutes <= 60)
{
}

etc, instead of a switch statement, which would require you entering every possible value. Note I used 'TotalMinutes' if you used Minute, it would only go up to 59.

Maciej Los · Answer 2 · 2011-07-04T07:57:00

You need to implement timer[^], which provides a mechanism for executing a method at specified intervals.

--EDIT1---
OK, create new windows application project and place label on the form. Then copy and paste code below:

VB

Public Class Form1
    Delegate Sub SetTextCallback(ByVal [text] As String)

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        'Create an inferred delegate that invokes methods for the timer.
        Dim tcb As TimerCallback = AddressOf CheckSendReport
        Dim oTimer As System.Threading.Timer = New System.Threading.Timer(tcb, 0, 0, 60000)
    End Sub
    
    'This method is called by the timer delegate.
    'Every (period time - in example 60000) we call DrawMessage sub
    Sub CheckSendReport(ByVal state As Object)
        Dim dTime As Date = Date.Now
        If dTime.Minute = 30 Then
            DrawMessage(dTime.ToString & " - Now!")
        Else
            DrawMessage(dTime.ToString & " - Not yet!")
        End If
    End Sub

    'draw message
    Private Sub DrawMessage(ByVal sMsg As String)
        If Me.Label1.InvokeRequired Then
            Dim d As New SetTextCallback(AddressOf DrawMessage)
            Me.Invoke(d, New Object() {sMsg})
        Else
            Me.Label1.Text = sMsg
        End If
    End Sub
End Class

I hope it's helpful.

Can i check time slot using select case statement in vb.net

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