Question

How to check if a string is a valid DateTime in VB.NET

Answer 1

Imports System

Public Class Program
    Public Shared Function IsDateTime(ByVal dt As String) As Boolean
        Dim tmpDate As DateTime
        
		Return DateTime.TryParse(dt, tmpDate)
    End Function

    Public Shared Sub Main()
        Console.WriteLine(IsDateTime(DateTime.Now.ToString()))
		
        Console.WriteLine(IsDateTime(New DateTime(2023, 08, 02).ToString()))
		
        Console.WriteLine(IsDateTime("24082023"))
		
        Console.WriteLine(IsDateTime("9/4/2023 8:30:53 AM"))
    End Sub
End Class


		
		
' run:
'
' True
' True
' False
' True
'

 

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