I recently changed my code to directly use a DataSet query to load values to a class because it is faster than using TObjectManager and I needed more performance. Talking about an object list of many thousands of items. But now when I try to assign a null value to a Nullable property I get an excep…

You cannot assign a Variant NULL to the Nullable type. To see null to a Nullable variable, you should use the Empty property: myClass.myproperty1 := Nullable<string>.Empty;

Failing to assign a null variant value to a Nullable<T> property.

BIZ TMS Aurelius

wlandgraf (Wagner Landgraf) Split this topic April 30, 2024, 3:58pm 5

A post was split to a new topic: Date value not being set to null

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Failing to assign a null variant value to a Nullable<T> property.

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