Исходный код вики Сценарии
Версия 2.5 от Alexandr Fokin на 2023/05/31 09:59
Последние авторы
| author | version | line-number | content |
|---|---|---|---|
| 1 | |(% style="width:394px" %)Компиляция дерева в делегат|(% style="width:1090px" %){{code language="c#"}}Expression | ||
| 2 | .Lambda(expressionValiarble) | ||
| 3 | .Compile();{{/code}} | ||
| 4 | |(% style="width:394px" %)[[Простое копирование свойств одного класса в другой>>doc:Разработка.NET.C#.Рантайм и типы.Expression tree | Деревья выражений.Сценарии.Простое копирование свойств одного класса в другой.WebHome]]|(% style="width:1090px" %) | ||
| 5 | |(% style="width:394px" %)[[Маппинг на основе выражения доступа к свойству>>doc:.Маппинг на основе выражения доступа к свойству.WebHome]]|(% style="width:1090px" %) | ||
| 6 | |(% style="width:394px" %)Вызов делегата при построении EpressionTree|(% style="width:1090px" %)Expression Trees and Invoking a Delegate | ||
| 7 | [[https:~~/~~/stackoverflow.com/questions/2215712/expression-trees-and-invoking-a-delegate>>url:https://stackoverflow.com/questions/2215712/expression-trees-and-invoking-a-delegate]] | ||
| 8 | |(% style="width:394px" %)Объявлений локальной переменной в блоке | ||
| 9 | (без передачи извне)|(% style="width:1090px" %)((( | ||
| 10 | переменная типа указана из области видимости, но не определена | ||
| 11 | [[https:~~/~~/question-it.com/questions/717473/peremennaja-tipa-ukazana-iz-oblasti-vidimosti-no-ne-opredelena>>url:https://question-it.com/questions/717473/peremennaja-tipa-ukazana-iz-oblasti-vidimosti-no-ne-opredelena]] | ||
| 12 | ))) | ||
| 13 | |(% style="width:394px" %) |(% style="width:1090px" %)((( | ||
| 14 | How do I set a field value in an C# Expression tree? | ||
| 15 | [[https:~~/~~/stackoverflow.com/questions/321650/how-do-i-set-a-field-value-in-an-c-sharp-expression-tree>>https://stackoverflow.com/questions/321650/how-do-i-set-a-field-value-in-an-c-sharp-expression-tree]] | ||
| 16 | |||
| 17 | How do you call a constructor via an expression tree on an existing object? | ||
| 18 | [[https:~~/~~/stackoverflow.com/questions/16363838/how-do-you-call-a-constructor-via-an-expression-tree-on-an-existing-object>>https://stackoverflow.com/questions/16363838/how-do-you-call-a-constructor-via-an-expression-tree-on-an-existing-object]] | ||
| 19 | |||
| 20 | How do I set a field value in an C# Expression tree? | ||
| 21 | [[https:~~/~~/stackoverflow.com/questions/321650/how-do-i-set-a-field-value-in-an-c-sharp-expression-tree>>https://stackoverflow.com/questions/321650/how-do-i-set-a-field-value-in-an-c-sharp-expression-tree]] | ||
| 22 | ))) | ||
| 23 | |(% style="width:394px" %)Вызов конструктора|(% style="width:1090px" %){{code language="c#"}}var constructorInfo = t.GetConstructors().First(e => e.Attributes.HasFlag(MethodAttributes.Public)); | ||
| 24 | var constructorParameter1 = Expression.Parameter(typeof(bool)); | ||
| 25 | var constructorExp = Expression.New(constructorInfo, constructorParameter1); | ||
| 26 | |||
| 27 | // Func<bool, object> or Func<bool, T> | ||
| 28 | var constructorDelegate = Expression | ||
| 29 | .Lambda<Func<bool, object>>( | ||
| 30 | constructorExp, | ||
| 31 | constructorParameter1 | ||
| 32 | ) | ||
| 33 | .Compile();{{/code}}((( | ||
| 34 | How do you call a constructor via an expression tree on an existing object? | ||
| 35 | [[https:~~/~~/stackoverflow.com/questions/16363838/how-do-you-call-a-constructor-via-an-expression-tree-on-an-existing-object>>https://stackoverflow.com/questions/16363838/how-do-you-call-a-constructor-via-an-expression-tree-on-an-existing-object]] | ||
| 36 | ))) | ||
| 37 | |||
| 38 | ==== ==== | ||
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| 40 | ==== ==== | ||
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| 42 | ==== ==== | ||
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| 44 | |||
| 45 | ---- | ||
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| 47 | ==== ==== | ||
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| 50 | ---- | ||
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| 53 | ---- |