RAD Studio VCL Reference
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DRIntf.IsNullID Function
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Indicates whether a Data Dictionary Identifier is null.

Pascal
function IsNullID(const ID): Boolean;
C++
Boolean IsNullID(const  ID);
File

DRIntf

Description

Call IsNullID to determine whether the ID for an entity in the Data Dictionary is null. IsNullID returns true if the ID is null, false otherwise. 

Use IsNullID to test the return value of functions that look up items in the Data Dictionary. 

 

See Also
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