Alternatively, you can use a nice little trick to convert the value to a valid string. If you append an empty string ('') to a Null in VB, the resultant text is an.
I want to retrieve decimal values from the database and I would like to know which is the recommended way to check for null values. I have seen on MSDN - DBNull.Value.
Check For Null Values In Vb Net
Cannot insert NULL value in a DATETIME field in SQL server 2008 via vb.net code. Jun 08, 2011 10:53 AM | Myhri | LINK.
In computer programming languages, "null" means nothing. It is different from any other value, including a blank string that actually contains the space character, and it is different from the numerical value of zero. Therefore, when you are writing a computer program, you often need to know when a certain variable is equal to null, or nothing. This is most often used when checking and verifying a value that a user has input. If the user enters nothing, the variable will contain the null value.
How to Check for Null Value in Visual Basic. In computer programming languages, 'null' means nothing. It is different from any other value, including a blank string.