IsNull Function

Tests if a Variant contains the special Null value, indicating that the variable does not contain data.

Syntax:


IsNull (Var)

Return value:

Bool

پارامېتىر

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.

Error codes:

D'oh! You found a bug (text/sbasic/shared/00000003.xhp#err5 not found).

مىسال:


Sub ExampleIsNull
Dim vVar As Variant
    MsgBox IsNull(vVar)
End Sub

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