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# IsNull Function

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

## Sintakse:

    IsNull (Var)

## Atgrieztā vērtība:

Bool

## Parametri:

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:

5 Nederīgs procedūras izsaukums

## Piemērs:

    Sub ExampleIsNull

    Dim vVar As Variant

        MsgBox IsNull(vVar)

    End Sub