AfDataContainerUtilities::isNullDataItemValue Method [AX 2012]
Determines whether the specified value is nullNothingnullptrunita null reference (Nothing in Visual Basic).
Syntax
client server public static boolean isNullDataItemValue(anytype _value)
Run On
Called
Parameters
- _value
Type: anytype
Data item value.
Return Value
Type: boolean
A Boolean value that indicates whether the specified data item value is nullNothingnullptrunita null reference (Nothing in Visual Basic).
Remarks
The following anytype values are interpreted as 'null': - value of uninitialized anytype variable: anytype value; DataContainerUtilities::isNullDataItemValue(value); // returns true - value of anytype variable that was assigned 'null': anytype value; value = null; DataContainerUtilities::isNullDataItemValue(value); // returns true - value of AfDataContainer variable that was assigned 'null': AfDataContainer value; value = null; DataContainerUtilities::isNullDataItemValue(value); // returns true - value of uninitialized AfDataConntainer variable: AfDataConntainer value; DataContainerUtilities::isNullDataItemValue(value); // returns true - value of AfDataContainerList variable that was assigned 'null': AfDataContainerList value; value = null; DataContainerUtilities::isNullDataItemValue(value); // returns true - value of uninitialized AfDataContainerList variable: AfDataConntainerList value; DataContainerUtilities::isNullDataItemValue(value); // returns true - value of AfArray variable that was assigned 'null': AfArray value; value = null; DataContainerUtilities::isNullDataItemValue(value); // returns true - value of uninitialized AfArray variable: AfArray value; DataContainerUtilities::isNullDataItemValue(value); // returns true - value of 'null' literal DataContainerUtilities::isNullDataItemValue(null); // returns true.