vb .net null value

This article uses Visual Basic NET to showcase ADO.NET and Visual Basic NET's NULL support In VB 6.0, The easiest way to test for a NULL value in VB 6.0 is by testing for the Null keyword, as the following code shows: If Not rs(0). Nothing represents null reference and is for objects used in code It tells that a member does not reference an object instance (so to speak the reference is null e.g nothing). All I want to do is check if an object is null, but no matter what I do, if it compiles, it throws a NullReferenceException just trying to check! Here's what I've done: If ((Not (comp.Containe.Introduction to Nullable Types in VB.NET September 27th, 2007 In NET nullable data types are data types that can be set to a null reference or, in VB.NET terms, Nothing. In NET 2.0, value types, such as Integer or Boolean, gained the ability to be In NET 2.0, value types, such as Integer or Boolean, gained the ability to be About.com In VB.NET, these nullable types are used to require the use of generics. How do I handle SQL null in VB.NET?: My dataset contains NULL - how do I detect that?While working on a VB.Net form to query a database that includes an optional date range query, I decided I wanted to display a datetimepicker with a blank value by default and then, if the user sets a date show the date. I am trying to determine how to check for a null value If the FindByValue does not find a match I assume it returns a NULL type of variable But the Well, sort of The application is coded so that when a textbox is empty and a record is inserted or updated, then a null value is either updated or inserted.These VB.NET examples use the Nothing literal and IsNothing A references that points to nothing can cause an Exception. It sounds like piece of cake, but please accept my ignorance and help me with this I have this: If String.IsNullOrEmpty(editTransactionRow.pay_id.ToString()) = False The. I am sorry I am new to vb net I am working on some code written in C# I check for some variables if they are null In vb I used to use variable .