IsNull Function
Tests if a Variant contains the special Null value, indicating that the variable does not contain data.
āļāˇāļģāļ āļģāˇāļāˇāļē:
IsNull (Var)
āļāļ´āˇāˇ āļŊāļļāˇāļ¯āˇāļą āļ āļāļē:
Bool
āļ´āļģāˇāļ¸āˇāļāˇāļąāˇ:
Var: Any variable that you want to test. This function returns True if the Variant contains the Null value, or False if the Variant does not contain the Null value.
Null - This value is used for a variant data sub type without valid contents.
āļāļ¯āˇāˇāļģāļĢāļē:
Sub ExampleIsNull
Dim vVar As Variant
MsgBox IsNull(vVar)
End Sub