RelationalStructuralTypeShaperExpression 建構函式

定義

命名空間:

Microsoft.EntityFrameworkCore.Query

組件:

Microsoft.EntityFrameworkCore.Relational.dll

套件:

Microsoft.EntityFrameworkCore.Relational v8.0.0

多載

RelationalStructuralTypeShaperExpression(ITypeBase, Expression, Boolean)	建立 RelationalStructuralTypeShaperExpression 類別的新執行個體。
RelationalStructuralTypeShaperExpression(ITypeBase, Expression, Boolean, LambdaExpression)	建立 RelationalStructuralTypeShaperExpression 類別的新執行個體。

RelationalStructuralTypeShaperExpression(ITypeBase, Expression, Boolean)

建立 RelationalStructuralTypeShaperExpression 類別的新執行個體。

public RelationalStructuralTypeShaperExpression (Microsoft.EntityFrameworkCore.Metadata.ITypeBase structuralType, System.Linq.Expressions.Expression valueBufferExpression, bool nullable);

new Microsoft.EntityFrameworkCore.Query.RelationalStructuralTypeShaperExpression : Microsoft.EntityFrameworkCore.Metadata.ITypeBase * System.Linq.Expressions.Expression * bool -> Microsoft.EntityFrameworkCore.Query.RelationalStructuralTypeShaperExpression

Public Sub New (structuralType As ITypeBase, valueBufferExpression As Expression, nullable As Boolean)

參數

structuralType

ITypeBase

要成形的實體類型。

valueBufferExpression

Expression

ValueBuffer 的運算式，可取得實體屬性的值。

nullable

Boolean

bool 值，指出此實體實例是否可為 Null。

RelationalStructuralTypeShaperExpression(ITypeBase, Expression, Boolean, LambdaExpression)

建立 RelationalStructuralTypeShaperExpression 類別的新執行個體。

protected RelationalStructuralTypeShaperExpression (Microsoft.EntityFrameworkCore.Metadata.ITypeBase type, System.Linq.Expressions.Expression valueBufferExpression, bool nullable, System.Linq.Expressions.LambdaExpression? materializationCondition);

new Microsoft.EntityFrameworkCore.Query.RelationalStructuralTypeShaperExpression : Microsoft.EntityFrameworkCore.Metadata.ITypeBase * System.Linq.Expressions.Expression * bool * System.Linq.Expressions.LambdaExpression -> Microsoft.EntityFrameworkCore.Query.RelationalStructuralTypeShaperExpression

Protected Sub New (type As ITypeBase, valueBufferExpression As Expression, nullable As Boolean, materializationCondition As LambdaExpression)

參數

type

ITypeBase

要成形的實體類型。

valueBufferExpression

Expression

ValueBuffer 的運算式，可取得實體屬性的值。

nullable

Boolean

這個實體實例是否可以為 Null。

materializationCondition

LambdaExpression

的運算式 Func<T,TResult> ，用來判斷要具體化的實體類型。