Vb isNullorEmpty with example

If you want to check the property value or string which is Null or not using the following code in vb .Net.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load

        Dim cust As New Customer()
        cust.firstname = "Rasik"

        If Not String.IsNullOrEmpty(cust.firstname.ToString()) Then

            ' yourcode here
        Else
            ' yourcode here
        End If
    End Sub 

The above example clears how to use IsNullOrEmpty, which will return true or false. It indicates whether the property value or string is empty or null.