Check condition when variable values are null or not in ASP.Net using C# and VB.Net

Dear Makumbi,

Please refer below sample code.

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    string RclassR = null;
    string streamr = null;
    if (RclassR == null && streamr == null)
    {
        Response.Write("Both the variable's value is null..");
    }
    else
    {
        Response.Write("Variable's value is not null..");
    }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    Dim RclassR As String = Nothing
    Dim streamr As String = Nothing

    If RclassR Is Nothing AndAlso streamr Is Nothing Then
        Response.Write("Both the variable's value is null..")
    Else
        Response.Write("Variable's value is not null..")
    End If
End Sub

Output

Both the variable's value is null..