How to check if an object is null in vb.net

Ask a question. Quick access. Search related threads. Remove From My Forums. Answered by:. Archived Forums. NET Managed Providers. Sometimes you need to take an action on an object that may be null, based on the value of a Boolean member on that object like the Boolean property IsAllowedFreeShipping in the following example :.

You can shorten your code and avoid manually checking for null by using the null-conditional operator as follows:. The null-conditional operators are short-circuiting. Another use for null-conditional member access is to invoke delegates in a thread-safe way with much less code.

The following example defines two types, a NewsBroadcaster and a NewsReceiver. News items are sent to the receiver by the NewsBroadcaster. Active 1 year, 3 months ago.

Viewed k times. Here's what I've done: If Not comp. Container Is Nothing And Not comp. Count - 1 Step 1 fixUIIn comp. Container And Not IsNothing comp. Container Is DBNull. Value And Not comp. Components Is DBNull. Count Step 1 fixUIIn comp. Just so you know, the debugger says that the null object is comp. Ky Leggiero.

Follow Post Reply. Plater 7, Expert 4TB. Structs are different then classes and don't work the same way. Post Reply. Similar topics Python. Check to. XML Parser - check Starttag. Check session object? NET Framework.