RuntimeDbFunction 建構函式
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
初始化 RuntimeDbFunction 類別的新執行個體。
public RuntimeDbFunction (string modelName, Microsoft.EntityFrameworkCore.Metadata.RuntimeModel model, Type returnType, string storeName, string? schema = default, string? storeType = default, System.Reflection.MethodInfo? methodInfo = default, bool scalar = false, bool aggregate = false, bool nullable = false, bool builtIn = false, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default, Func<System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression>,Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression>? translation = default);
new Microsoft.EntityFrameworkCore.Metadata.RuntimeDbFunction : string * Microsoft.EntityFrameworkCore.Metadata.RuntimeModel * Type * string * string * string * System.Reflection.MethodInfo * bool * bool * bool * bool * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping * Func<System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression>, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> -> Microsoft.EntityFrameworkCore.Metadata.RuntimeDbFunction
Public Sub New (modelName As String, model As RuntimeModel, returnType As Type, storeName As String, Optional schema As String = Nothing, Optional storeType As String = Nothing, Optional methodInfo As MethodInfo = Nothing, Optional scalar As Boolean = false, Optional aggregate As Boolean = false, Optional nullable As Boolean = false, Optional builtIn As Boolean = false, Optional typeMapping As RelationalTypeMapping = Nothing, Optional translation As Func(Of IReadOnlyList(Of SqlExpression), SqlExpression) = Nothing)
參數
- modelName
- String
模型名稱。
- model
- RuntimeModel
模型本身。
- returnType
- Type
傳回類型。
- storeName
- String
存放區名稱。
- schema
- String
存放區架構。
- storeType
- String
存放區類型。
- methodInfo
- MethodInfo
對應的 MethodInfo 。
- scalar
- Boolean
傳回型別是否為純量。
- aggregate
- Boolean
函式是否為匯總。
- nullable
- Boolean
函式是否可為 Null。
- builtIn
- Boolean
函式是否內建。
- typeMapping
- RelationalTypeMapping
傳回值的型別對應。
- translation
- Func<IReadOnlyList<SqlExpression>,SqlExpression>
函式翻譯。