SqlFunctionExpression 构造函数

参考

定义

命名空间:: Microsoft.EntityFrameworkCore.Query.SqlExpressions

程序集:: Microsoft.EntityFrameworkCore.Relational.dll

包:: Microsoft.EntityFrameworkCore.Relational v5.0.0

包:: Microsoft.EntityFrameworkCore.Relational v6.0.0

包:: Microsoft.EntityFrameworkCore.Relational v7.0.0

包:: Microsoft.EntityFrameworkCore.Relational v8.0.0

包:: Microsoft.EntityFrameworkCore.Relational v3.0.0

包:: Microsoft.EntityFrameworkCore.Relational v3.1.0

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

重载

SqlFunctionExpression(String, Boolean, Type, RelationalTypeMapping)	创建表示内置 niladic 函数的 SqlFunctionExpression 类的新实例。
SqlFunctionExpression(String, String, Boolean, Type, RelationalTypeMapping)	创建表示 niladic 函数的 SqlFunctionExpression 类的新实例。
SqlFunctionExpression(SqlExpression, String, Boolean, Boolean, Type, RelationalTypeMapping)	创建类的新实例， SqlFunctionExpression 该实例表示在实例上调用的 niladic 函数。
SqlFunctionExpression(String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)	创建表示内置函数的 SqlFunctionExpression 类的新实例。
SqlFunctionExpression(String, String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)	创建表示函数的 SqlFunctionExpression 类的新实例。
SqlFunctionExpression(SqlExpression, String, IEnumerable<SqlExpression>, Boolean, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)	创建类的新实例， SqlFunctionExpression 该实例表示在实例上调用的函数。
SqlFunctionExpression(Expression, String, String, Boolean, IEnumerable<SqlExpression>, Boolean, Type, RelationalTypeMapping)

SqlFunctionExpression(String, Boolean, Type, RelationalTypeMapping)

创建表示内置 niladic 函数的 SqlFunctionExpression 类的新实例。

public SqlFunctionExpression (string functionName, bool nullable, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping);

public SqlFunctionExpression (string functionName, bool nullable, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping);

new Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression : string * bool * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Sub New (functionName As String, nullable As Boolean, type As Type, typeMapping As RelationalTypeMapping)

参数

functionName: String

函数的名称。

nullable: Boolean

一个布尔值，指示此函数是否可以返回 null。

type: Type

该表达式的 Type。

typeMapping: RelationalTypeMapping

RelationalTypeMapping与表达式关联的。

适用于

SqlFunctionExpression(String, String, Boolean, Type, RelationalTypeMapping)

创建表示 niladic 函数的 SqlFunctionExpression 类的新实例。

public SqlFunctionExpression (string schema, string functionName, bool nullable, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping);

public SqlFunctionExpression (string schema, string functionName, bool nullable, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping);

new Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression : string * string * bool * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Sub New (schema As String, functionName As String, nullable As Boolean, type As Type, typeMapping As RelationalTypeMapping)

参数

schema: String

在其中定义函数的架构。

functionName: String

函数的名称。

nullable: Boolean

一个布尔值，指示此函数是否可以返回 null。

type: Type

该表达式的 Type。

typeMapping: RelationalTypeMapping

RelationalTypeMapping与表达式关联的。

适用于

SqlFunctionExpression(SqlExpression, String, Boolean, Boolean, Type, RelationalTypeMapping)

创建类的新实例， SqlFunctionExpression 该实例表示在实例上调用的 niladic 函数。

public SqlFunctionExpression (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string functionName, bool nullable, bool instancePropagatesNullability, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping);

public SqlFunctionExpression (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string functionName, bool nullable, bool instancePropagatesNullability, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping);

new Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * string * bool * bool * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Sub New (instance As SqlExpression, functionName As String, nullable As Boolean, instancePropagatesNullability As Boolean, type As Type, typeMapping As RelationalTypeMapping)

参数

instance: SqlExpression

定义函数的表达式。

functionName: String

函数的名称。

nullable: Boolean

一个布尔值，指示此函数是否可以返回 null。

instancePropagatesNullability: Boolean

一个值，该值指示实例是否将 null 传播到结果。

type: Type

该表达式的 Type。

typeMapping: RelationalTypeMapping

RelationalTypeMapping与表达式关联的。

适用于

SqlFunctionExpression(String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

创建表示内置函数的 SqlFunctionExpression 类的新实例。

public SqlFunctionExpression (string functionName, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping);

public SqlFunctionExpression (string functionName, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping);

new Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression : string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * bool * seq<bool> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Sub New (functionName As String, arguments As IEnumerable(Of SqlExpression), nullable As Boolean, argumentsPropagateNullability As IEnumerable(Of Boolean), type As Type, typeMapping As RelationalTypeMapping)

参数

functionName: String

函数的名称。

arguments: IEnumerable<SqlExpression>

函数的参数。

nullable: Boolean

一个布尔值，指示此函数是否可以返回 null。

argumentsPropagateNullability: IEnumerable<Boolean>

指示单个参数是否将 null 传播到结果的布尔值列表。

type: Type

该表达式的 Type。

typeMapping: RelationalTypeMapping

RelationalTypeMapping与表达式关联的。

适用于

SqlFunctionExpression(String, String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

创建表示函数的 SqlFunctionExpression 类的新实例。

public SqlFunctionExpression (string schema, string functionName, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping);

public SqlFunctionExpression (string? schema, string functionName, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping);

new Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression : string * string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * bool * seq<bool> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Sub New (schema As String, functionName As String, arguments As IEnumerable(Of SqlExpression), nullable As Boolean, argumentsPropagateNullability As IEnumerable(Of Boolean), type As Type, typeMapping As RelationalTypeMapping)

参数

schema: String

在其中定义函数的架构。

functionName: String

函数的名称。

arguments: IEnumerable<SqlExpression>

函数的参数。

nullable: Boolean

一个布尔值，指示此函数是否可以返回 null。

argumentsPropagateNullability: IEnumerable<Boolean>

指示单个参数是否将 null 传播到结果的布尔值列表。

type: Type

该表达式的 Type。

typeMapping: RelationalTypeMapping

RelationalTypeMapping与表达式关联的。

适用于

SqlFunctionExpression(SqlExpression, String, IEnumerable<SqlExpression>, Boolean, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

创建类的新实例， SqlFunctionExpression 该实例表示在实例上调用的函数。

public SqlFunctionExpression (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string functionName, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, bool instancePropagatesNullability, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping);

public SqlFunctionExpression (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression instance, string functionName, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool nullable, bool instancePropagatesNullability, System.Collections.Generic.IEnumerable<bool> argumentsPropagateNullability, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping);

new Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * string * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * bool * bool * seq<bool> * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Sub New (instance As SqlExpression, functionName As String, arguments As IEnumerable(Of SqlExpression), nullable As Boolean, instancePropagatesNullability As Boolean, argumentsPropagateNullability As IEnumerable(Of Boolean), type As Type, typeMapping As RelationalTypeMapping)

参数

instance: SqlExpression

对其应用函数的表达式。

functionName: String

函数的名称。

arguments: IEnumerable<SqlExpression>

函数的参数。

nullable: Boolean

一个布尔值，指示此函数是否可以返回 null。

instancePropagatesNullability: Boolean

一个值，该值指示实例是否将 null 传播到结果。

argumentsPropagateNullability: IEnumerable<Boolean>

指示单个参数是否将 null 传播到结果的布尔值列表。

type: Type

该表达式的 Type。

typeMapping: RelationalTypeMapping

RelationalTypeMapping与表达式关联的。

适用于

SqlFunctionExpression(Expression, String, String, Boolean, IEnumerable<SqlExpression>, Boolean, Type, RelationalTypeMapping)

public SqlFunctionExpression (System.Linq.Expressions.Expression instance, string schema, string name, bool niladic, System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> arguments, bool builtIn, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping);

new Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression : System.Linq.Expressions.Expression * string * string * bool * seq<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> * bool * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlFunctionExpression

Public Sub New (instance As Expression, schema As String, name As String, niladic As Boolean, arguments As IEnumerable(Of SqlExpression), builtIn As Boolean, type As Type, typeMapping As RelationalTypeMapping)

参数

instance: Expression

schema: String

name: String

niladic: Boolean

arguments: IEnumerable<SqlExpression>

builtIn: Boolean

type: Type

typeMapping: RelationalTypeMapping

适用于

通过

SqlFunctionExpression 构造函数

定义

重载

SqlFunctionExpression(String, Boolean, Type, RelationalTypeMapping)

参数

适用于

SqlFunctionExpression(String, String, Boolean, Type, RelationalTypeMapping)

参数

适用于

SqlFunctionExpression(SqlExpression, String, Boolean, Boolean, Type, RelationalTypeMapping)

参数

适用于

SqlFunctionExpression(String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

参数

适用于

SqlFunctionExpression(String, String, IEnumerable<SqlExpression>, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

参数

适用于

SqlFunctionExpression(SqlExpression, String, IEnumerable<SqlExpression>, Boolean, Boolean, IEnumerable<Boolean>, Type, RelationalTypeMapping)

参数

适用于

SqlFunctionExpression(Expression, String, String, Boolean, IEnumerable<SqlExpression>, Boolean, Type, RelationalTypeMapping)

参数

适用于

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