Set null value vb.net

Kals Kals 9 1 1 gold badge 1 1 silver badge 3 3 bronze badges. It would help to see what you have. It's not clear here whether you're trying to build an SQL command, or what you want the results to look like. There's clearly something else going on here. I m trying to insert a null record to a column by SQL. Please find the below snippet Please put your question information into your question and delete the comment.

That's a good way to find out a year later that your app was hacked six months ago. Add a comment. Active Oldest Votes. OleDbCommand 'Use the proper database command Command. AddWithValue " Value1", If string. Don't tell someone to read the manual.

Chances are they have and don't get it. Provide an answer or move on to the next question. Let's work to help developers, not make them feel stupid. Related Questions. Looping list of object inside partial view returning null values in post. Object reference not set to an instance of an object. How do I fix the null object reference? Object reference not set an instance of object in data gridview in VB.

Layout: fixed fluid. Web01 2. 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. SendNews delegate. Before null conditional operators, code like the following ensured that the delegate invocation list was not Nothing :. Part 2 We use the IsNothing function to see if a reference is equal to Nothing.

This is another syntax form for the same thing. This exception not NothingReferenceException is provoked by accessing a member on Nothing. If a reference may be Nothing, we must test before using its members. When a Module or Class is created, the fields within it are automatically set to Nothing. You never need to assign them to Nothing at creation time. Tip Variables in VB. NET never have garbage values. In managed code, like the. NET Framework, initial values are 0 or Nothing.

NET program that uses module-level field. Nothing can be used with value types such as Integers. When used on values, "Nothing" indicates the default value for the type.