Partilhar via


SqlConstantExpression Class

Definition

An expression that represents a constant in a SQL tree.

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

public class SqlConstantExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
type SqlConstantExpression = class
    inherit SqlExpression
Public Class SqlConstantExpression
Inherits SqlExpression
Inheritance
SqlConstantExpression

Constructors

SqlConstantExpression(ConstantExpression, RelationalTypeMapping)
Obsolete.

Creates a new instance of the SqlConstantExpression class.

SqlConstantExpression(Object, RelationalTypeMapping)

Creates a new instance of the SqlConstantExpression class.

SqlConstantExpression(Object, Type, RelationalTypeMapping)

Creates a new instance of the SqlConstantExpression class.

Properties

NodeType (Inherited from SqlExpression)
Type (Inherited from SqlExpression)
TypeMapping

The RelationalTypeMapping associated with this expression.

(Inherited from SqlExpression)
Value

The constant value.

Methods

ApplyTypeMapping(RelationalTypeMapping)

Applies supplied type mapping to this expression.

Equals(Object) System.Linq.Expressions.Expression.Equals(System.Object)
GetHashCode() System.Linq.Expressions.Expression.GetHashCode
Print(ExpressionPrinter)

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

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 SqlExpression)
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.

Explicit Interface Implementations

IPrintableExpression.Print(ExpressionPrinter)

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

(Inherited from SqlExpression)

Applies to