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Delegate expressions (and custom functionsExpression Eigene Funktionen) have the following advantages:
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They cannot be mapped to the database (there is a mechanism for a mechanism for mapping custom functions to databases. See Expression Eigene Funktionen)
They cannot be serialized in remoting drivers
They cannot be analyzed by Quino
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The next example shows how to get this property with a delegate, but without any dependency on generated codeMetadata Generated.
| Code Block |
|---|
personBuilder
.Add
.CalculatedProperty("Seniority", MetaType.Integer)
.ValueExpression<Person>(c => c.YearsActive + 1);
|
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At the same time, you can see how powerful and useful the text-formatting language isExpression Text Formatierung is: the GetSalutation() method has a lot of hand-coding just to get the same behavior as the much shorter text-formatting expression.
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