UpdateExpression Class

Definition

Namespace:

Microsoft.EntityFrameworkCore.Query.SqlExpressions

Assembly:

Microsoft.EntityFrameworkCore.Relational.dll

Package:

Microsoft.EntityFrameworkCore.Relational v9.0.0

Source:

UpdateExpression.cs

An expression that represents an UPDATE operation in a SQL tree.

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

public sealed class UpdateExpression : System.Linq.Expressions.Expression, Microsoft.EntityFrameworkCore.Query.IPrintableExpression, Microsoft.EntityFrameworkCore.Query.IRelationalQuotableExpression

type UpdateExpression = class
    inherit Expression
    interface IRelationalQuotableExpression
    interface IPrintableExpression

Public NotInheritable Class UpdateExpression
Inherits Expression
Implements IPrintableExpression, IRelationalQuotableExpression

Inheritance

Expression

UpdateExpression

Implements

IPrintableExpression IRelationalQuotableExpression

Constructors

UpdateExpression(TableExpression, SelectExpression, IReadOnlyList<ColumnValueSetter>, ISet<String>)	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.
UpdateExpression(TableExpression, SelectExpression, IReadOnlyList<ColumnValueSetter>)	Creates a new instance of the UpdateExpression class.

Properties

ColumnValueSetters	The list of ColumnValueSetter which specifies columns and their corresponding values to update.
NodeType	Gets the node type of this Expression.
SelectExpression	The select expression which is used to determine which rows to update and to get data from additional tables.
Table	The table on which the update operation is being applied.
Tags	The list of tags applied to this UpdateExpression.
Type	Gets the static type of the expression that this Expression represents.

Methods

ApplyTags(ISet<String>)	Applies a given set of tags.
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()	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.
Update(SelectExpression, IReadOnlyList<ColumnValueSetter>)	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.