RAD Studio VCL Reference
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TDBXByteArrayValue.IsNull Method
TDBXByteArrayValue Class | TDBXByteArrayValue Members | DBXCommon Namespace | Description
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Returns true if the value is null.

Pascal
function IsNull: Boolean; override;
C++
virtual __fastcall Boolean IsNull();
Description

Returns true if the value is null. This method should be called before calling any of the Get methods. If the value is null, the Get methods will throw TDBXError exception if they are called. 

 

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