FromSqlExpression Class

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An expression that represents a subquery table source with user-provided custom SQL.

This type is typically used by database providers (and other extensions). It is generally not used in application code.

public class FromSqlExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.TableExpressionBase

public class FromSqlExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.TableExpressionBase, Microsoft.EntityFrameworkCore.Query.SqlExpressions.IClonableTableExpressionBase

public class FromSqlExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.TableExpressionBase, Microsoft.EntityFrameworkCore.Query.SqlExpressions.IClonableTableExpressionBase, Microsoft.EntityFrameworkCore.Query.SqlExpressions.ITableBasedExpression

public class FromSqlExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.TableExpressionBase, Microsoft.EntityFrameworkCore.Query.SqlExpressions.ITableBasedExpression

type FromSqlExpression = class
    inherit TableExpressionBase

type FromSqlExpression = class
    inherit TableExpressionBase
    interface IClonableTableExpressionBase

type FromSqlExpression = class
    inherit TableExpressionBase
    interface ITableBasedExpression
    interface IClonableTableExpressionBase

type FromSqlExpression = class
    inherit TableExpressionBase
    interface ITableBasedExpression

Public Class FromSqlExpression
Inherits TableExpressionBase

Public Class FromSqlExpression
Inherits TableExpressionBase
Implements IClonableTableExpressionBase

Public Class FromSqlExpression
Inherits TableExpressionBase
Implements IClonableTableExpressionBase, ITableBasedExpression

Public Class FromSqlExpression
Inherits TableExpressionBase
Implements ITableBasedExpression

Inheritance: Expression

TableExpressionBase
FromSqlExpression

Implements: IClonableTableExpressionBase ITableBasedExpression

Constructors

FromSqlExpression(ITableBase, String, Expression)	Creates a new instance of the FromSqlExpression class.
FromSqlExpression(String, Expression, String)	Obsolete. Creates a new instance of the FromSqlExpression class.
FromSqlExpression(String, ITableBase, String, Expression, IReadOnlyDictionary<String,IAnnotation>)	This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release.
FromSqlExpression(String, ITableBase, String, Expression)	Creates a new instance of the FromSqlExpression class.
FromSqlExpression(String, String, Expression)	Creates a new instance of the FromSqlExpression class.

Properties

Alias	The alias assigned to this table source.
Alias	The alias assigned to this table source. (Inherited from TableExpressionBase)
Annotations	An indexed collection of annotations associated with this table expression. (Inherited from TableExpressionBase)
Arguments	The user-provided parameters passed to the custom SQL.
NodeType	(Inherited from TableExpressionBase)
Sql	The user-provided custom SQL for the table source.
Table	The ITableBase associated with given table source if any, `null` otherwise.
Type	(Inherited from TableExpressionBase)

Methods

AddAnnotation(String, Object)	Adds an annotation to this object. Throws if an annotation with the specified name already exists. (Inherited from TableExpressionBase)
Clone()	Creates a new object that is a copy of the current instance.
Clone(String, ExpressionVisitor)	Creates a new object that is a copy of the current instance.
Clone(String, ExpressionVisitor)	Creates a new object that is a copy of the current instance. (Inherited from TableExpressionBase)
CreateWithAnnotations(IEnumerable<IAnnotation>)	Creates an object like this with specified annotations.
CreateWithAnnotations(IEnumerable<IAnnotation>)	Creates an object like this with specified annotations. (Inherited from TableExpressionBase)
Equals(Object)	System.Linq.Expressions.Expression.Equals(System.Object)
FindAnnotation(String)	Gets the annotation with the given name, returning `null` if it does not exist. (Inherited from TableExpressionBase)
GetAnnotations()	Gets all annotations on the current object. (Inherited from TableExpressionBase)
GetHashCode()	System.Linq.Expressions.Expression.GetHashCode
GetRequiredAlias()	This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. (Inherited from TableExpressionBase)
Print(ExpressionPrinter)	Creates a printable string representation of the given expression using ExpressionPrinter.
PrintAnnotations(ExpressionPrinter)	Creates a printable string representation of annotations associated with the given expression using ExpressionPrinter. (Inherited from TableExpressionBase)
Quote()	System.Linq.Expressions.Expression.Quote
Quote()	Quotes the expression; that is, returns an expression that, when evaluated, would construct an expression identical to this one. Used to generate code for precompiled queries, which reconstructs this expression. (Inherited from TableExpressionBase)
Update(Expression)	Creates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression.
VisitChildren(ExpressionVisitor)	Reduces the node and then calls the visitor delegate on the reduced expression. The method throws an exception if the node is not reducible.
WithAlias(String)	Returns a copy of the current TableExpressionBase with the new provided alias.
WithAlias(String)	Returns a copy of the current TableExpressionBase with the new provided alias. (Inherited from TableExpressionBase)
WithAnnotations(IReadOnlyDictionary<String,IAnnotation>)	Creates an object like this with specified annotations.
WithAnnotations(IReadOnlyDictionary<String,IAnnotation>)	Creates an object like this with specified annotations. (Inherited from TableExpressionBase)

Explicit Interface Implementations

IPrintableExpression.Print(ExpressionPrinter)

Creates a printable string representation of the given expression using ExpressionPrinter.

(Inherited from TableExpressionBase)

Extension Methods

UnwrapJoin(TableExpressionBase)

If the given table is a JoinExpressionBase, returns the table it joins to. Otherwise, returns table.

Applies to

通过