Excel vba check if cell is null

The required expression argument is a Variant containing a numeric expression or a string expression. If expression consists of more than one variable , Null in any constituent variable causes True to be returned for the entire expression. The Null value indicates that the Variant contains no valid data. Null is not the same as Empty , which indicates that a variable has not yet been initialized. It is also not the same as a zero-length string "" , which is sometimes referred to as a null string.

Use the IsNull function to determine whether an expression contains a Null value. This is because any expression containing a Null is itself Null and therefore False. To check if a cell is empty with VBA , use a macro with the following statement structure:.

The following GIF illustrates the results of executing the macro example. Cell A5 This cell isn't empty is not empty and the message box displayed confirms that this is the case. To check if the active cell is empty with VBA , use a macro with the following statement structure:. The following macro example checks if the active cell is empty and displays a message box confirming whether the active cell is empty or not empty.

The active cell A6 is empty and the message box displayed confirms that this is the case. ISNULL in VBA is a logical function which is used to determine whether a given reference is empty or NULL or not that is why the name ISNULL, this is an inbuilt function which gives us true or false as a result, based on the result we can arrive to conclusions, if the reference is empty it returns true value else false value.

Finding the NULL value in the worksheet is one of the frustrating jobs. This function is available only with VBA and we cannot use this with Excel worksheet function. This function can be used in any subprocedure and function procedure. You are free to use this image on your website, templates etc, Please provide us with an attribution link How to Provide Attribution?